BETA — measurements and names under active refinement. Seen a sign, a gate, or a better name? Submit an update no account needed · photos welcome via GitHub

UK Hill Climb Survey — road gradients measured by LiDAR

How steep is that hill, really? It depends how far you measure: the same hill can honestly be 32% over 2 m and 25% over 100 m at once. So every number here states the distance it was measured over, computed from public laser height surveys in a way anyone can re-check. It began with one contradictory road sign in Wales and now spans all four UK nations — every climb the open laser record can support, measured the same way everywhere. The survey is a work in progress, updated as and when new data lands and review time allows — and the method travels: anywhere that publishes open LiDAR can be next. This is an open survey, not a vetted route guide: every number can be re-checked from the open data, corrections are welcome from anyone — and access, surfaces and safety are yours to judge on the ground. How to read these numbers →

Measured, not collectedEvery gradient is computed from national LiDAR surveys by one published method — never copied from a sign, a book or a GPS track.

Every maximum states its distanceCefn Llan carried a 25% sign and a 32% sign — both arguably right, at different measuring distances (25.1% over 100 m, 32.1% over 2 m). A bare percentage can't be checked.

Shows its workingConfidence, quality flags, provenance to the exact survey tiles, and a machine-readable file on every climb page. Verify any number from the same open data.

Claims are tested, not trustedSigns, book values and local reports are recorded as evidence and compared with the measurement — why this survey exists →

Map of every published climb across the UK

See all the measured roads on one map →

1783 climbs published · 205 km of total ascent between them · steepest 25 m: 36.6% (Lane near Dolgarrog) · longest: 10.8 km (Cat and Fiddle) · 68 counties · share the survey

Which hills get a page here

We measure every paved public road in a region that shows any hint of being steep — more than twenty thousand roads across the UK so far (paved is the survey’s scope here; unpaved tracks are not measured). Most turn out to be ordinary; they stay in the dataset. The few hundred most remarkable per nation get a page of their own. A hill earns one in any of three ways:

It is seriously steep. Somewhere on the hill there is a stretch of at least 25 continuous metres steeper than that nation’s cutoff — currently 20% in every nation, where the laser has a clear view of the road at that spot. Where trees or bridges make the measurement less certain, the bar is higher (26%) and a person checks each one before it is published.
It is a big climb. A long, unrelenting ascent (on the order of 1.5–2 km at around 10% or steeper), or one of the 30 biggest total ascents in its nation.
People already know it. National Hill Climb Championship venues, the climbs of Simon Warren’s original 100 Greatest Cycling Climbs, and a small hand-picked founding set. Mentions on other lists are noted on pages but don’t create a page by themselves.

The cutoffs are editorial, not physics: they are set to keep each nation’s pages a manageable, human-reviewable number, focused on the hills most likely to be the steepest, longest or hardest — and they loosen as review capacity grows. A hill below the cutoff is still measured, still in the dataset, and still checkable — absence of a page is never a verdict on the hill.

What the open data supports. These tables publish exactly what the public laser record can prove — no estimates, no filler. Where a nation’s open coverage runs deep (Wales, England), so do the tables. Where it is still growing, we publish every climb the data already supports: Scotland’s open coverage is a patchwork today (its national LiDAR programme is capturing the whole country through 2027), and Northern Ireland’s published LiDAR reaches roughly a quarter of its roads — enough to measure Belfast’s steepest streets, not yet the Antrim coast’s famous climbs. A famous hill missing from these tables is almost always waiting for data, not judgement — the measured case for more open elevation data. The tables reflect sources and reviews as of 4 September 2026; nations are not all on the same vintage — this is a working survey, updated as and when. The same approach works anywhere with open laser data — other countries are on the roadmap.

The data behind the tables

The tables below are three cuts of one dataset — steepest by measuring window, largest rise, and the full page catalogue. Because the steepest tables rank by one window, a row there may be a brief sharp pitch on an otherwise gentle road or a long traditional climb — the Length and Overall columns beside every value tell you which. The measurements themselves are the product: every climb page ships a machine-readable OCL document, the catalogue is a downloadable CSV (ODbL — reuse terms), and the complete measured database — every road we measured, paged or not — is queued for publication as open data.

On this page: steepest 10 m · 25 m · 50 m · 100 m · largest net rise · provisional (343) · all climbs (1783) — the rankings are the A/B-confidence subset; all climbs is every page, held-out entries included.

Steepest 10 m

#	Climb	Max	Length	Overall	Confidence
1	Rhiw Syr Dafydd	≈caveated40%	125 m	20.6%	Good
2	Hookway Hill	≈caveated40%	1765 m	7.9%	Good
3	Sennybridge to Yr Allt^°	40%	1412 m	3.9%	Good
4	Mountain Road	≈caveated40%	514 m	10.4%	Good
5	Guildford Lane	≈caveated39%	1244 m	4.1%	Good
6	Lane near Penpoll^°	≈caveated39%	1580 m	4.9%	Good
7	Woolacombe Station Road	≈caveated39%	2501 m	5.8%	Good
8	Lane near Pillaton^°	≈caveated39%	1639 m	5.9%	Good
9	Lane near Great Weeke^°	≈caveated39%	2056 m	5.5%	Good
10	Lane near Dolgarrog^° · access note	≈caveated39%	666 m	22.4%	Good
11	Nomansland to Uppincott^°	≈caveated39%	1434 m	4.1%	Good
12	Ffordd-las to Hay Bluff^°	≈caveated39%	6920 m	4.3%	Good
13	Bignor Down	39%	1874 m	8.7%	Good
14	School Road	≈caveated38%	826 m	10.0%	Good
15	Melin-y-coed to Pant-y-maes^°	≈caveated38%	2452 m	10.7%	Good

≈ measured under tree canopy or near a structure at this window — the value stands but is less certain — the flag does not say whether the true value is higher or lower. Each climb page details what was flagged and why.

° provisional auto-generated name — details on the climb page.

Steepest 25 m

#	Climb	Max	Length	Overall	Confidence
1	Lane near Dolgarrog^° · access note	≈caveated36.6%	666 m	22.4%	Good
2	Ffordd Pen Llech	≈caveated32.6%	237 m	17.2%	Good
3	Chalford Bottom to Burnt Ash^°	≈caveated32.5%	1614 m	7.6%	Good
4	Pannier Lane	32.0%	601 m	8.7%	High
5	Valley Road	32.0%	401 m	13.4%	High
6	Ffordd-las to Hay Bluff^°	≈caveated31.9%	6920 m	4.3%	Good
7	Mountain Road	≈caveated31.4%	514 m	10.4%	Good
8	Whiterock Road	≈caveated31.3%	866 m	11.9%	Good
9	Snakelake Hill	≈caveated31.2%	1408 m	4.4%	Good
10	Discovered lane (51.8534, -3.0168)	≈caveated30.8%	729 m	11.4%	Good
11	Harper's Lane	≈caveated30.7%	642 m	13.2%	Good
12	Willow Bank · access note	≈caveated30.6%	254 m	19.3%	Good
13	Hey Lane	30.6%	2478 m	7.9%	Good
14	Darloe Lane	30.5%	417 m	13.4%	Good
15	Llanellen to Coed y Prior^°	≈caveated30.4%	950 m	14.5%	Good

° provisional auto-generated name — details on the climb page.

Steepest 50 m

#	Climb	Max	Length	Overall	Confidence
1	Lane near Dolgarrog^° · access note	≈caveated34.7%	666 m	22.4%	Good
2	Ffordd Pen Llech	≈caveated29.8%	237 m	17.2%	Good
3	Melin-y-coed to Pant-y-maes^°	≈caveated29.5%	2452 m	10.7%	Good
4	Chalford Bottom to Burnt Ash^°	≈caveated28.6%	1614 m	7.6%	Good
5	Discovered lane (51.8534, -3.0168)	≈caveated28.6%	729 m	11.4%	Good
6	Mountain Road	≈caveated28.5%	514 m	10.4%	Good
7	Llanguicke Road	≈caveated28.4%	1172 m	13.3%	Good
8	Darloe Lane	≈caveated28.2%	417 m	13.4%	Good
9	Ffordd Bryn Fran	≈caveated27.9%	2943 m	9.9%	Good
10	Dinas Oleu Lane	≈caveated27.8%	198 m	21.5%	Good
11	Discovered lane (51.8389, -3.1595)	≈caveated27.7%	2180 m	10.4%	Good
12	Discovered lane (53.2217, -3.3531)	≈caveated27.6%	273 m	17.1%	Good
13	Llanellen to Coed y Prior^°	≈caveated27.5%	950 m	14.5%	Good
14	Ffordd Llwyn Du	27.4%	1494 m	12.2%	Good
15	Bussage Hill	≈caveated27.3%	1170 m	9.0%	Good

° provisional auto-generated name — details on the climb page.

Steepest 100 m

#	Climb	Max	Length	Overall	Confidence
1	Lane near Dolgarrog^° · access note	≈caveated27.4%	666 m	22.4%	Good
2	Ffordd Pen Llech	≈caveated26.5%	237 m	17.2%	Good
3	Bussage Hill	≈caveated26.3%	1170 m	9.0%	Good
4	Whitty Lane	26.1%	1275 m	9.1%	High
5	Discovered lane (51.8534, -3.0168)	≈caveated25.6%	729 m	11.4%	Good
6	Dinas Oleu Lane	≈caveated25.3%	198 m	21.5%	Good
7	Discovered lane (51.8389, -3.1595)	≈caveated25.3%	2180 m	10.4%	Good
8	Park Mill Lane	≈caveated25.2%	827 m	8.5%	Good
9	Cefn Llan	≈caveated25.1%	218 m	19.4%	Good
10	Dabdike Stones to Runswick Bay^°	25.0%	418 m	16.4%	Good
11	Clifton Hill	24.9%	141 m	23.9%	High
12	Littlebeck to Eskdaleside^°	≈caveated24.7%	2137 m	5.2%	Good
13	Bredwardine Hill	24.7%	3307 m	7.0%	High
14	Mount Road	≈caveated24.4%	825 m	11.5%	Good
15	Ffordd Bryn Fran	≈caveated24.4%	2943 m	9.9%	Good

° provisional auto-generated name — details on the climb page.

Largest net rise

#	Climb	Net rise	Total ascent	Length	Overall	Confidence
1	Llanellen to Cefn y Galchen^°	452 m	482 m	5964 m	7.6%	Good
2	Hartside	400 m	401 m	7759 m	5.2%	Good
3	Hay on Wye to Mynydd Brith^°	332 m	351 m	6042 m	5.5%	High
4	Lawnt to Tir Mostyn^°	331 m	430 m	9367 m	3.5%	High
5	Dardy to Blaen Onneu^°	328 m	361 m	6272 m	5.2%	Good
6	The Struggle	328 m	353 m	4072 m	8.1%	High
7	Milltir Gerrig^°	325 m	337 m	5940 m	5.5%	Good
8	Snake Road	325 m	325 m	5105 m	6.4%	High
9	Cyffredyn to Blaen Onneu^°	323 m	339 m	4794 m	6.7%	Good
10	Holmfirth Road	318 m	322 m	5504 m	5.8%	High
11	Tacker Street to Brendon Hills^°	316 m	366 m	4767 m	6.6%	Good
12	Hardknott Pass	315 m	318 m	3119 m	10.1%	Good
13	Lamps Moss	309 m	322 m	4269 m	7.2%	High
14	Erwyd to Llangynog^°	308 m	345 m	5937 m	5.2%	Good
15	Rhigos Road	305 m	308 m	6004 m	5.1%	High

° provisional auto-generated name — details on the climb page.

Net rise is the endpoint elevation difference (what overall gradient is computed from); total ascent counts every metre climbed, including dips regained. Rankings include high- and good-confidence measurements only (how confidence works). Rankings order the computed estimates; differences smaller than the measurement uncertainty (about ±1.4 pp at 10 m, smaller at longer windows) should not be read as significant — neighbouring entries may genuinely be tied.

Provisional discoveries — awaiting review

These trip our own plausibility checks (confidence: needs confirmation): the numbers below may be terrain-model artifacts and are NOT ranked until a human review — or your local knowledge — settles them. Steepest first at 10 m.

#	Climb	Max 10 m	Length	Confidence
1	Lindridge Hill	55%	680 m	Needs confirmation
2	Paddons Lane	47%	522 m	Needs confirmation
3	Lane near Carnach^°	43%	529 m	Needs confirmation
4	Newcastle to Spoad Hill^°	42%	1765 m	Needs confirmation
5	Berwyn to Geraint Hill^°	42%	3790 m	Needs confirmation
6	Bodmiscombe to Sheldon Hill^°	42%	1834 m	Needs confirmation
7	Sunny Bank Lane	42%	588 m	Needs confirmation
8	Hand Carr Lane	41%	982 m	Needs confirmation
9	Winksley to Woodhouse Hill^°	41%	1344 m	Needs confirmation
10	Weary Bank	41%	1446 m	Needs confirmation

° provisional auto-generated name — details on the climb page.

…and 333 more in the catalogue below (filter: awaiting review).

All climbs (1783)

Every climb with a page — a broader set than the ranking tables above, which admit high- and good-confidence measurements only. Provisional and held-out entries appear here too, labelled, so the catalogue is the complete published record rather than another ranking.

Climb	Area	Matches	Shape	Length	Net rise	Overall	Max 25 m	Confidence
Abbey Lane	near Freshford · Somerset	—	stepped	759 m	76 m	10.0%	21.6%	High
Abbot's Hill to Beaford^°	near Beaford · Devon	—	sustained	1411 m	114 m	8.1%	23.5%	Needs confirmation
Aber Eiddy to Berea^°	near Aber Eiddy · Dyfed	—	sustained	1391 m	81 m	5.9%	≈caveated20.2%	Good
Aberarth to Graig Ddu	near Aberarth · Dyfed	—	sustained	1967 m	98 m	5.0%	12.9%	High
Aberdyfi to Ffridd Cefn-isaf^°	near Aberdyfi · Gwynedd	—	sustained	1610 m	181 m	11.2%	20.9%	High
Aberedw to Pontsioni^°	near Aberedw · Powys	—	sustained	654 m	93 m	14.3%	26.5%	Good
Aberffrwd Hill	near Aberffrwd · Dyfed	—	sustained	2372 m	237 m	10.0%	≈caveated26.1%	Good
Aberyscir to Cwm Ynysgyfarch	near Aberyscir · Powys	—	sustained	2547 m	186 m	7.3%	21.9%	Good
Accrington Bypass	near Huncoat · Lancashire	—	sustained	597 m	33 m	5.6%	≈caveated29.4%	Good
Ackerlls Hill to Berry Pomeroy^°	near Littlehempston · Devon	—	sustained	853 m	75 m	8.8%	21.3%	Needs confirmation
Ackrell's Hill	near Littlehempston · Devon	—	sustained	1657 m	77 m	4.7%	21.0%	Needs confirmation
Acland Road	near Landkey · Devon	—	sustained	928 m	89 m	9.6%	27.3%	Needs confirmation
Adams Street to Cerrig yr Hafan^°	near Tal-y-bont · Dyfed	—	sustained	8383 m	380 m	4.5%	14.5%	Needs confirmation
Adey's Lane	near Wotton-under-Edge · Gloucestershire	—	sustained	901 m	109 m	12.0%	22.1%	High
Affeton Hill	near West Worlington · Devon	—	sustained	813 m	71 m	8.8%	≈caveated25.2%	Needs confirmation
Aggs Hill	near Battledown · Gloucestershire	—	sustained	2367 m	189 m	8.0%	20.0%	Good
Aish to Brent Hill^°	near Aish · Devon	—	sustained	2721 m	158 m	5.8%	22.3%	Good
Aisthorpe Road	near Fourlane Ends	—	stepped	279 m	25 m	9.1%	20.1%	High
All Stretton to Long Batch^°	near All Stretton · Shropshire	—	sustained	6431 m	303 m	4.7%	22.2%	High
Aller Hill	near Newtown · Devon	—	stepped	1179 m	72 m	6.1%	≈caveated26.7%	Good
Allt Bron Philip	near Llanddona · Gwynedd	—	sustained	1442 m	139 m	9.6%	≈caveated26.2%	Good
Allt Goch Fawr	near Beaumaris · Gwynedd	tag: 25% (2026)	stepped	1266 m	83 m	6.5%	≈caveated15.0%	Needs confirmation
Allt y Badi (south side)	near Glyn Ceiriog · Clwyd	tag: 25% (2026)	stepped	2707 m	243 m	9.0%	≈caveated26.6%	Good
Ankers Knowl Lane	near King's Clough · Cheshire	—	sustained	983 m	86 m	8.7%	21.0%	High
Apple Street	near Pipers Clough	—	sustained	522 m	64 m	12.3%	28.5%	High
Appleby Road	near Kendal · Cumbria	—	stepped	1854 m	73 m	4.0%	21.4%	Good
Applethwaite to Latrigg^°	near Applethwaite · Cumbria	—	sustained	1828 m	183 m	10.0%	18.0%	Good
Arbour Lane	near Linley · Shropshire	—	stepped	2542 m	107 m	4.2%	20.1%	High
Archer's Hill to Levens^°	near Charley Island · Cumbria	—	stepped	1130 m	39 m	3.4%	25.8%	Good
Arthur's Stone Lane	near Bredwardine · Herefordshire	—	sustained	2452 m	203 m	8.3%	20.6%	Good
Ashbourne Lane	near Chapel-en-le-Frith · Derbyshire	National HC¹, 100 Climbs²	stepped	2107 m	146 m	6.9%	18.4%	High
Ashburton to Combe^°	near Ashburton · Devon	—	sustained	3225 m	259 m	8.0%	18.2%	Needs confirmation
Ashburton to Yolland Hill^°	near Ashburton · Devon	—	sustained	267 m	41 m	15.5%	20.5%	High
Ashenhurst Road	near Todmorden	—	sustained	572 m	68 m	11.8%	22.6%	High
Ashfield Barn Road	near Turville · Buckinghamshire	—	stepped	1263 m	98 m	7.8%	≈caveated26.7%	Needs confirmation
Ashton Hill	near Corston · Somerset	—	stinger	2245 m	70 m	3.1%	20.4%	Good
Askerbank Lane	near Rushton Bank · Staffordshire	—	sustained	1200 m	52 m	4.3%	≈caveated21.2%	Good
Aston Hill to Forest Dingle^°	near Mondaytown · Shropshire	—	stepped	3313 m	168 m	5.1%	23.1%	Needs confirmation
Auchengreoch Road	near Spateston · Renfrewshire	—	sustained	2885 m	160 m	5.5%	≈caveated13.5%	Needs confirmation
Ayron Street	near Ferndale · Mid Glamorgan	—	sustained	269 m	33 m	12.4%	22.4%	High
Back Lane	near Swainby · North Yorkshire	—	stepped	2541 m	146 m	5.7%	21.2%	Good
Back of Ecton	near Ecton · Staffordshire	—	sustained	1898 m	105 m	5.6%	21.9%	High
Back oth Cross	near Robins Clough · Cheshire	—	sustained	2298 m	190 m	8.2%	21.4%	Good
Back York Crescent	near Pye Nest	—	sustained	286 m	33 m	11.5%	≈caveated22.7%	Good
Badgall to Three Hammers^°	near Tresmeer · Cornwall	—	stepped	852 m	56 m	6.5%	21.3%	Good
Bag Tor to Haytor Vale^°	near Haytor Vale · Devon	—	sustained	756 m	50 m	6.6%	20.9%	High
Baldock Bypass	near Clothall Common · Hertfordshire	—	stinger	1723 m	63 m	3.7%	≈caveated21.1%	Good
Ball Hill	near Upham · Devon	—	stepped	694 m	42 m	6.1%	23.1%	High
Ball Hill to Colwell^°	near Northleigh · Devon	—	stepped	2625 m	118 m	4.5%	27.9%	High
Ballygomartin Road	near Belfast · County Antrim	—	sustained	1065 m	103 m	9.6%	23.4%	Good
Bamford Clough	near Bamford · Derbyshire	—	sustained	299 m	32 m	10.8%	20.7%	High
Bampton Grange to Aika Hill^°	near Bampton Grange · Cumbria	—	sustained	2216 m	148 m	6.7%	20.2%	High
Banesley Lane	near Lamesley	—	sustained	3150 m	189 m	6.0%	≈caveated21.0%	Good
Bank Clough to Oldgate Nick^°	near Bank Clough · Cheshire	—	sustained	1773 m	186 m	10.5%	≈caveated26.8%	Needs confirmation
Bank Fold Lane	near Belthorn · Lancashire	—	sustained	673 m	81 m	12.1%	≈caveated20.8%	Good
Bank Hey Bottom Lane	near Ripponden	—	stepped	1030 m	66 m	6.4%	20.8%	Good
Bank Lane	near Ewden Village	—	sustained	309 m	40 m	12.8%	23.6%	Needs confirmation
Bank Road	near Matlock · Derbyshire	100 Climbs², National HC¹, Wikipedia³	sustained	530 m	57 m	10.7%	15.5%	High
Banks to Low Row^°	near Banks · Cumbria	—	stepped	2843 m	91 m	3.2%	22.2%	Needs confirmation
Bar Road	near Calver · Derbyshire	100 Climbs²	sustained	1229 m	134 m	10.9%	18.9%	Good
Barber's Hill^°	near Llangollen · Clwyd	National HC¹	sustained	6052 m	276 m	4.6%	≈caveated21.7%	Good
Barley Lane	near Hastings · East Sussex	—	sustained	425 m	38 m	9.0%	20.6%	High
Barley Mill Road	near Bridgehill · County Durham	—	sustained	845 m	83 m	9.8%	21.9%	High
Barn Hill	near Hunton · Kent	—	sustained	691 m	58 m	8.4%	20.7%	High
Barton Steep	near Cheriton · Devon	—	sustained	471 m	75 m	15.9%	≈caveated23.6%	Good
Batt's Hill to Cole's Cross^°	near Goveton · Devon	—	sustained	1429 m	110 m	7.7%	22.3%	High
Baybridge to Townfield^°	near Blanchland · Northumberland	—	stepped	4046 m	131 m	3.2%	21.8%	Good
Beach Hay to Pound Bank^°	near Lem Hill · Worcestershire	—	sustained	1844 m	75 m	4.1%	21.6%	Good
Beach Road	near Babbacombe · Devon	—	sustained	420 m	78 m	18.5%	≈caveated29.3%	Good
Beacon Lane	near Haresfield · Gloucestershire	—	stepped	2463 m	196 m	8.0%	≈caveated22.0%	Good
Beara Hill	near Lydcott · Devon	—	sustained	4465 m	303 m	6.8%	15.9%	High
Bearda Hill	near Whitelee Clough · Cheshire	—	sustained	664 m	45 m	6.7%	≈caveated20.3%	Good
Beck Side to Friars' Ground^°	near Kirkby-in-Furness · Cumbria	—	sustained	996 m	98 m	9.9%	≈caveated22.5%	Needs confirmation
Beck Side to Knottallow Hill^°	near Kirkby-in-Furness · Cumbria	—	sustained	1987 m	221 m	11.1%	21.8%	Needs confirmation
Bedwellty Road	near Bargod · Gwent	—	sustained	1891 m	144 m	7.6%	21.0%	High
Beech Lane	near Guildford · Surrey	—	stepped	401 m	32 m	8.0%	20.2%	Good
Beechdale Lane	near Beech Dale · Staffordshire	—	sustained	629 m	60 m	9.5%	≈caveated23.1%	Good
Beek's Lane	near Nimlet · Gloucestershire	—	stepped	2086 m	118 m	5.7%	20.7%	Good
Beeston Brow	near Bollington · Cheshire	—	stepped	485 m	68 m	14.0%	≈caveated22.0%	Good
Ben Madigan Park	near Belfast · County Antrim	—	sustained	278 m	35 m	12.5%	21.0%	High
Bendle Lane	near North Molton · Devon	—	sustained	1217 m	78 m	6.4%	20.1%	Needs confirmation
Bennett's Lane	near Bath · Somerset	—	sustained	378 m	54 m	14.2%	23.5%	High
Bere Ferrers to Bere Alston^°	near Bere Ferrers · Devon	—	stepped	2257 m	123 m	5.4%	21.7%	Good
Berridge Lane	near Milltown · Derbyshire	—	stepped	1604 m	113 m	7.1%	20.4%	High
Berry's Ground Lane	near Martinhoe Common · Devon	—	stepped	1650 m	102 m	6.2%	24.6%	Needs confirmation
Berwyn to Geraint Hill^°	near Llangollen · Clwyd	—	sustained	3790 m	286 m	7.5%	≈caveated20.9%	Needs confirmation
Besbury Lane	near Minchinhampton · Gloucestershire	—	stepped	1024 m	44 m	4.3%	26.7%	Good
Bethlehem to Carn Powell^°	near Bethlehem · Dyfed	—	sustained	3549 m	201 m	5.7%	≈caveated29.6%	Good
Betton Dingle to Gravelsbank^°	near Betton Dingle · Shropshire	—	sustained	3243 m	247 m	7.6%	23.7%	High
Bevan Avenue	near Mochdre · Clwyd	—	stepped	660 m	61 m	9.2%	23.0%	High
Bias Cliff to Rockhole Hill^°	near Bias Cliff · North Yorkshire	—	stepped	1501 m	121 m	8.1%	20.7%	Good
Bibors Hill	near Waterrow · Somerset	—	sustained	1193 m	126 m	10.6%	≈caveated24.2%	Good
Bickham to Diptford^°	near Bickham · Devon	—	sustained	1786 m	65 m	3.7%	≈caveated21.7%	Needs confirmation
Bickham to North Huish^°	near Bickham · Devon	—	sustained	2223 m	78 m	3.5%	27.3%	Needs confirmation
Bickleigh Vale to Bickleigh^°	near Bickleigh · Devon	—	sustained	603 m	76 m	12.6%	≈caveated23.4%	Needs confirmation
Bickwell Lane	near Sidmouth · Devon	—	stepped	343 m	34 m	10.0%	25.8%	Needs confirmation
Bignor Down	near Sutton · West Sussex	—	stepped	1874 m	162 m	8.7%	≈caveated28.2%	Good
Binneford Hill	near Kennerleigh · Devon	—	sustained	651 m	65 m	10.0%	21.0%	Needs confirmation
Binweston Lane	near Binweston · Shropshire	—	sustained	4862 m	273 m	5.6%	≈caveated22.4%	Good
Birdy Brow	near Bashall Town · Lancashire	—	sustained	1721 m	176 m	10.3%	≈caveated16.5%	Good
Birk Field Bank	near Westerdale · North Yorkshire	—	sustained	643 m	71 m	11.0%	21.5%	High
Bitthams Lane	near Chilsworthy · Cornwall	—	sustained	1065 m	125 m	11.7%	24.9%	Needs confirmation
Black Hat Lane	near Ide · Devon	—	sustained	910 m	79 m	8.7%	20.9%	Good
Black Head to Shepherd's Hill^°	near Black Head · Dumfries and Galloway	—	sustained	1896 m	102 m	5.4%	21.9%	Good
Black Rhadley Hill to The Bog^°	near Coppice Dingle · Shropshire	—	sustained	3900 m	178 m	4.6%	20.6%	Good
Blackquarries Hill	near Wotton-under-Edge · Gloucestershire	—	stepped	1608 m	134 m	8.4%	23.1%	High
Blacksmill Hill to Clockmill^°	near Hell's Cleugh · Scottish Borders	—	sustained	3508 m	190 m	5.4%	≈caveated12.3%	Good
Blacksmith Hill	near Ozleworth Bottom · Gloucestershire	—	sustained	865 m	78 m	9.0%	20.0%	High
Blackvein Mountain Road	near Risca · Gwent	—	sustained	1688 m	176 m	10.4%	≈caveated25.9%	Good
Blackwood Hill Road	near Longsdon · Staffordshire	—	sustained	3310 m	151 m	4.6%	20.5%	Needs confirmation
Blaenavon Road	near Govilon · Gwent	—	sustained	4320 m	367 m	8.5%	≈caveated14.5%	Needs confirmation
Blaendare Farm Lane	near Pontypool · Gwent	—	sustained	510 m	55 m	10.8%	22.5%	Good
Blakeney to Blakeney Hill^°	near Blakeney · Gloucestershire	—	sustained	1513 m	121 m	8.0%	22.5%	Good
Blakey Lane	near Castleton · North Yorkshire	—	sustained	6749 m	282 m	4.2%	18.2%	High
Blandy Terrace	near Ogmore Vale · Mid Glamorgan	—	sustained	330 m	35 m	10.6%	23.9%	Good
Boarsgreave Lane	near Cowpe · Lancashire	—	sustained	252 m	32 m	12.9%	20.6%	Needs confirmation
Boasley Road	near Bratton Clovelly · Devon	—	sustained	466 m	50 m	10.8%	24.7%	Good
Bod Ivan	near Y Drenewydd · Powys	—	stepped	595 m	34 m	5.6%	23.4%	Good
Bodinnick to Blackbottle Rock^°	near Fowey · Cornwall	—	sustained	936 m	78 m	8.4%	≈caveated22.7%	Good
Bodmiscombe to Sheldon Hill^°	near Bodmiscombe · Devon	—	sustained	1834 m	121 m	6.6%	≈caveated27.2%	Needs confirmation
Bolenowe Road	near Bolenowe · Cornwall	—	stepped	353 m	23 m	6.6%	20.0%	Needs confirmation
Boltby Bank^°	near Boltby · North Yorkshire	100 Climbs²	sustained	1402 m	156 m	11.2%	24.7%	High
Bonallack Lane	near Gweek · Cornwall	—	stepped	1904 m	58 m	3.0%	≈caveated20.2%	Needs confirmation
Boode Road	near Braunton · Devon	—	stepped	2399 m	95 m	4.0%	20.8%	High
Booth House Lane	near Holmfirth	—	sustained	2163 m	151 m	7.0%	23.4%	Good
Boscastle to Condolden Barrow^°	near Boscastle · Cornwall	—	stepped	4084 m	208 m	5.1%	21.9%	Needs confirmation
Bospin Lane	near Woodchester · Gloucestershire	—	sustained	346 m	58 m	16.8%	23.7%	Needs confirmation
Bostal Road	near Steyning · West Sussex	100 Climbs²	stepped	2019 m	118 m	5.8%	17.7%	Needs confirmation
Boughrood to Trewern Hill^°	near Bochrwyd · Powys	—	sustained	4401 m	228 m	5.2%	21.9%	High
Boulby Bank	near Redhouse Nab · North Yorkshire	—	stepped	1622 m	130 m	8.0%	20.7%	High
Bourne Lane	near Brimscombe · Gloucestershire	—	stepped	942 m	111 m	11.8%	≈caveated27.2%	Good
Bowden Lane	near Red Girts · Somerset	—	stepped	509 m	44 m	8.7%	≈caveated21.0%	Good
Bowjey Hill	near Newlyn · Cornwall	—	sustained	501 m	67 m	13.4%	28.9%	Needs confirmation
Bownham to Bagpath^°	near Bownham · Gloucestershire	—	stepped	1294 m	81 m	6.2%	22.4%	Good
Box Hill to Rudloe^°	near Box Hill · Wiltshire	—	stepped	1801 m	111 m	6.2%	20.2%	High
Brace Avenue	near Abertyleri · Gwent	—	sustained	937 m	60 m	6.4%	21.1%	High
Brae to Oape^°	near Brae · Highland	—	sustained	1477 m	35 m	2.4%	21.4%	High
Braes Road	near Ullapool · Highland	—	sustained	1201 m	96 m	8.0%	20.3%	Good
Bransdale Road	near Cockayne · North Yorkshire	—	sustained	430 m	46 m	10.8%	22.1%	Needs confirmation
Brantfell Road	near Bowness-on-Windermere · Cumbria	—	stepped	343 m	30 m	8.8%	20.3%	High
Breakneck Hill	near East Stowford · Devon	—	sustained	816 m	64 m	7.9%	≈caveated16.0%	Needs confirmation
Bredwardine Hill	near Bredwardine · Herefordshire	—	stepped	3307 m	231 m	7.0%	29.5%	High
Brendon to Kipscombe Hill^°	near Brendon · Devon	—	sustained	796 m	98 m	12.3%	21.0%	High
Brick End to Hill of Eaton^°	near Brick End · Herefordshire	—	stepped	991 m	45 m	4.6%	21.4%	High
Brigham to Castlerigg^°	near Keswick · Cumbria	—	sustained	1452 m	90 m	6.2%	22.1%	Needs confirmation
Brightholmlee Road	near Wharncliffe Side	—	sustained	3345 m	259 m	7.7%	16.7%	High
Brightonwater to Great Care Hill^°	near Cardinham · Cornwall	—	stepped	3165 m	122 m	3.9%	≈caveated29.1%	Needs confirmation
Brimley to Top Tor	near Brimley · Devon	—	sustained	7593 m	297 m	3.9%	15.1%	High
Brimscombe to Swift's Hill^°	near Brimscombe · Gloucestershire	—	stepped	4161 m	174 m	4.2%	≈caveated23.3%	Good
Broad Clough to Whitaker Clough^°	near Bacup · Lancashire	—	stepped	422 m	36 m	8.5%	21.2%	High
Broad Lane	near Saunton · Devon	—	sustained	1796 m	116 m	6.4%	23.7%	Good
Broad Park Avenue	near Ilfracombe · Devon	—	stepped	379 m	29 m	7.7%	20.2%	High
Broadmead Lane	near Crockerton · Wiltshire	—	stepped	340 m	30 m	8.9%	20.4%	High
Brock Mill Lane	near Hell Clough · Lancashire	—	sustained	310 m	31 m	9.9%	25.1%	Good
Brockholes Lane	near Brockholes	—	sustained	1506 m	154 m	10.3%	≈caveated19.7%	Good
Bronallt Road	near Pontarddulais · West Glamorgan	—	stepped	663 m	61 m	9.3%	22.1%	Good
Brongwyn to Capel Tygwydd^°	near Brongwyn · Dyfed	—	stepped	1288 m	64 m	5.0%	≈caveated26.0%	Good
Broom Hill to Glaisdale Rigg^°	near Fairy Cross Plain · North Yorkshire	—	stepped	4062 m	162 m	4.0%	22.2%	Needs confirmation
Broomfield Hall Road	near Enmore · Somerset	—	stepped	2470 m	157 m	6.4%	≈caveated24.9%	Needs confirmation
Broughton Mills to The Knott^°	near Broughton Mills · Cumbria	—	sustained	4193 m	225 m	5.4%	22.5%	Good
Brow Lane	near Catherine Slack	—	sustained	1330 m	111 m	8.4%	22.3%	High
Brow Road	near Haworth	—	sustained	708 m	88 m	12.4%	20.3%	High
Brown's Lane	near The Bage · Herefordshire	—	sustained	1243 m	110 m	8.9%	20.4%	High
Browns Lane	near Roser's Cross · East Sussex	—	sustained	1226 m	67 m	5.4%	14.2%	Needs confirmation
Bryn Dolwen to Tyddyn^°	near Cwm y Glog · Powys	—	sustained	1499 m	85 m	5.7%	20.2%	High
Bryn Rhyd-yr-Arian to Mynydd Tryfan^°	near Bryn Rhyd-yr-Arian · Clwyd	—	sustained	2925 m	148 m	5.1%	≈caveated29.0%	Good
Bryn Road	near Pen-Rhiw-fawr · West Glamorgan	—	sustained	395 m	49 m	12.4%	21.8%	High
Bryncethin Road	near Garnant · West Glamorgan	—	sustained	1635 m	146 m	8.9%	≈caveated28.2%	Good
Brynllys to Bwlch Oerddrws	near Cwm yr Eglwys · Gwynedd	Wikipedia³	stepped	5159 m	248 m	4.8%	16.5%	Good
Brynteg	near Bethesda · Gwynedd	—	sustained	119 m	20 m	17.1%	22.4%	High
Buckfast to Yolland Hill^°	near Buckfast · Devon	—	stepped	2453 m	113 m	4.6%	≈caveated18.5%	Needs confirmation
Buckland Monachorum to Tuckermarsh^°	near Buckland Monachorum · Devon	—	sustained	2370 m	138 m	5.8%	≈caveated22.0%	Needs confirmation
Buffery Road	near Dudley	—	sustained	1053 m	86 m	8.2%	22.7%	High
Burthwaite	near Bassenthwaite · Cumbria	—	stepped	1597 m	73 m	4.6%	24.4%	Good
Burythorpe to Lang Hill^°	near Burythorpe · North Yorkshire	—	stepped	965 m	59 m	6.2%	20.3%	High
Bush Road	near Mountain Ash · Mid Glamorgan	—	sustained	466 m	60 m	12.8%	22.0%	High
Bussage Hill	near Brownshill · Gloucestershire	sign: 20% (2009)	stepped	1170 m	105 m	9.0%	≈caveated29.0%	Good
Bustomley Lane	near Middleton Green · Staffordshire	—	sustained	1752 m	49 m	2.8%	20.1%	Good
Butler Lane	near Baildon	—	sustained	156 m	20 m	13.0%	21.9%	Good
Buttercombe Lane	near Braunton · Devon	—	sustained	3951 m	122 m	3.1%	20.8%	High
Butterhill Lane	near Smallrice · Staffordshire	—	stepped	2017 m	37 m	1.8%	20.2%	Good
Buzzacott Lane	near Combe Martin · Devon	—	stepped	2804 m	226 m	8.1%	≈caveated26.1%	Good
Bwlch Esgair Gelli	near Coed Nant-yr-hwch · Powys	—	sustained	2497 m	164 m	6.6%	≈caveated22.6%	Good
Bwlch Penbarras	near Llanbedr-Dyffryn-Clwyd · Clwyd	100 Climbs², National HC¹, Wikipedia³	sustained	2324 m	260 m	11.2%	≈caveated24.4%	Needs confirmation
Bwlch Sychnant	near Capelulo · Clwyd	Wikipedia³, Warren app⁴	sustained	743 m	93 m	12.5%	≈caveated15.0%	Good
Bwlch y Groes^°	near Cwm Cerddin · Gwynedd	Wikipedia³, 100 Climbs²	sustained	1214 m	188 m	15.5%	23.8%	High
Bwlch-y-Clawdd Road	near Treorchy · Mid Glamorgan	100 Climbs²	sustained	4804 m	270 m	5.6%	8.9%	High
Cadythew Rock to Boswinger^°	near Cadythew Rock · Cornwall	—	sustained	779 m	81 m	10.4%	≈caveated21.5%	Needs confirmation
Cairnside	near Micklefield · Buckinghamshire	—	sustained	338 m	34 m	10.0%	20.5%	High
Cairo Street	near Tonypandy · Mid Glamorgan	—	sustained	358 m	34 m	9.5%	22.3%	High
Calf Hey Lane	near Whitworth · Lancashire	—	stepped	389 m	41 m	10.5%	23.7%	High
Callow Lane	near Wirksworth · Derbyshire	—	sustained	2210 m	120 m	5.4%	21.0%	High
Calton Road	near Thwaites	—	sustained	1177 m	127 m	10.8%	22.0%	High
Cam Gill Road	near Kettlewell · North Yorkshire	—	stepped	1918 m	60 m	3.1%	20.6%	High
Camelot Lane	near Hoptonbank · Shropshire	—	sustained	1801 m	136 m	7.6%	≈caveated20.1%	Good
Camp Lane	near Henley-in-Arden · Warwickshire	—	stepped	1170 m	55 m	4.7%	23.8%	High
Camptown to Carter Bar^°	near Camptown · Scottish Borders	—	sustained	8370 m	290 m	3.5%	≈caveated10.3%	Good
Canada Coombe	near Hutton · Somerset	—	sustained	1050 m	93 m	8.9%	21.4%	Good
Capel Bangor to Pant-y-crug	near Penllwyn · Dyfed	—	sustained	1389 m	145 m	10.5%	≈caveated21.0%	Good
Capel Isaac to Mynydd Figyn^°	near Capel Isaac · Dyfed	—	stepped	3340 m	147 m	4.4%	23.8%	Good
Cardinham to St Bellarmin's Tor^°	near Cardinham · Cornwall	—	sustained	1556 m	153 m	9.8%	24.6%	Needs confirmation
Carey to Little Dewchurch^°	near Carey · Herefordshire	—	stepped	2692 m	124 m	4.6%	≈caveated21.8%	Good
Carlton Bank	near Carlton in Cleveland · North Yorkshire	—	sustained	2136 m	204 m	9.5%	21.1%	High
Carpley Green Road	near Bainbridge · North Yorkshire	—	sustained	1825 m	153 m	8.4%	≈caveated22.6%	Good
Carr Street	near Ramsbottom	—	sustained	384 m	47 m	12.2%	22.7%	High
Carsluith to Strife Hill^°	near Carsluith · Dumfries and Galloway	—	stepped	4937 m	189 m	3.8%	≈caveated13.2%	Good
Cartworth Bank Road	near Holmfirth	—	sustained	1592 m	119 m	7.5%	21.7%	Good
Caseberry Lane	near Hele · Devon	—	sustained	1555 m	164 m	10.6%	≈caveated22.3%	Good
Casthorpe Road	near Barrowby · Lincolnshire	—	stepped	1386 m	50 m	3.6%	23.2%	Good
Castle Hill to Brown Hill^°	near Wooler · Northumberland	—	stepped	896 m	57 m	6.4%	21.2%	High
Castle Hill to Newton^°	near Kington · Herefordshire	—	sustained	249 m	31 m	12.3%	24.5%	Needs confirmation
Castle Idris to Pen y Garn^°	near Quabbs · Shropshire	—	sustained	4438 m	211 m	4.8%	≈caveated21.0%	Good
Castle Idris to Pen y Garn^°	near Quabbs · Shropshire	—	stepped	4192 m	203 m	4.8%	21.3%	Good
Castle Lane	near Sticklynch · Somerset	—	sustained	751 m	79 m	10.6%	23.8%	Good
Castlepark Hill to Little Comfort^°	near Rezare · Cornwall	—	stepped	2162 m	96 m	4.5%	≈caveated20.9%	Good
Castlepark Hill to Little Comfort^°	near Felldownhead · Devon	—	stepped	1295 m	92 m	7.1%	≈caveated26.0%	Good
Castlepark Hill to Rezare^°	near Rezare · Cornwall	—	stepped	1317 m	76 m	5.8%	21.1%	Good
Cat and Fiddle	near Higher Hurdsfield · Cheshire	National HC¹, 100 Climbs²	stepped	10761 m	206 m	1.9%	13.4%	High
Cat Lane	near Hele · Devon	—	sustained	880 m	86 m	9.8%	20.4%	Good
Cathole Lane	near Yawl · Devon	—	sustained	1128 m	102 m	9.0%	21.8%	Good
Cefn Llan	near Llanbadarn Fawr · Dyfed	sign: 32% (2025)	sustained	218 m	42 m	19.4%	≈caveated27.4%	Good
Cefn Modfedd to Cwm yr Erw^°	near Cwm yr Erw · Powys	—	sustained	1609 m	109 m	6.8%	≈caveated23.1%	Good
Cefn Vron Hill to Bryn^°	near Anchor · Shropshire	—	sustained	649 m	50 m	7.7%	≈caveated16.1%	Needs confirmation
Cefngorwydd to Tirabad^°	near Cefn-gorwydd · Powys	—	sustained	5391 m	92 m	1.7%	≈caveated20.1%	Good
Ceunant Gorddinan to Ffridd-y-Bwlch	near Ceunant Gorddinan · Clwyd	—	sustained	2266 m	130 m	5.7%	11.6%	High
Chagford to Meldon Hill^°	near Chagford · Devon	—	sustained	1482 m	147 m	9.9%	22.3%	Needs confirmation
Chalford Bottom to Burnt Ash^°	near Chalford · Gloucestershire	—	sustained	1614 m	122 m	7.6%	≈caveated32.5%	Good
Chalk Pit Lane	near Litton Cheney · Dorset	—	stepped	3047 m	152 m	5.0%	20.3%	Good
Chalky Path	near Winterborne Stickland · Dorset	—	sustained	512 m	58 m	11.3%	20.8%	Good
Challacombe Hill	near Woolacombe · Devon	—	sustained	1550 m	163 m	10.5%	22.1%	High
Chander Hill Lane	near Holymoorside · Derbyshire	—	sustained	468 m	41 m	8.7%	26.2%	Good
Chapel Down Lane	near Brownston · Devon	—	stepped	1847 m	46 m	2.5%	20.4%	Good
Chapel Hill Lane	near Rawtenstall · Lancashire	—	sustained	739 m	67 m	9.1%	≈caveated26.9%	Needs confirmation
Chapel Lane	near Oldfurnace · Staffordshire	—	sustained	759 m	75 m	9.9%	≈caveated22.5%	Needs confirmation
Chard Lane	near Clapton · Somerset	—	stepped	3004 m	139 m	4.6%	≈caveated20.5%	Good
Charlcombe Lane	near Larkhall · Somerset	—	sustained	1962 m	184 m	9.4%	20.2%	High
Charles Street	near Tonypandy · Mid Glamorgan	—	sustained	915 m	97 m	10.6%	20.7%	High
Chase End Hill to Whiteleaved Oak^°	near Bromesberrow · Gloucestershire	—	sustained	1298 m	61 m	4.7%	20.5%	Needs confirmation
Chase End Road	near Eight Oaks · Worcestershire	—	sustained	3422 m	88 m	2.6%	25.9%	Good
Cheddar Gorge	near Cheddar · Somerset	National HC¹, 100 Climbs²	sustained	2830 m	143 m	5.1%	16.5%	Good
Chelfham to Goodleigh^°	near Chelfham · Devon	—	sustained	1015 m	133 m	13.1%	≈caveated21.4%	Needs confirmation
Cheney Longville to Round Oak^°	near Cheney Longville · Shropshire	—	sustained	3148 m	125 m	4.0%	21.5%	Good
Cheriton Fitzpaine to Poughill^°	near Cheriton Fitzpaine · Devon	—	sustained	1942 m	87 m	4.5%	21.5%	Good
Cheriton Hill	near Cheriton · Devon	—	stepped	1671 m	114 m	6.8%	≈caveated25.9%	Good
Chick Hill	near Cliff End · East Sussex	—	sustained	340 m	42 m	12.5%	≈caveated29.6%	Good
Chipping to Lingey Hill^°	near Chipping · Lancashire	—	sustained	1351 m	69 m	5.1%	20.8%	Needs confirmation
Chirbury to Middleton Hill^°	near Chirbury · Shropshire	—	sustained	3869 m	188 m	4.9%	22.6%	Needs confirmation
Chitterley to Cadbury^°	near Chitterley · Devon	—	sustained	3150 m	130 m	4.1%	20.8%	High
Chivelstone to South Pool^°	near South Pool · Devon	—	sustained	592 m	65 m	11.0%	≈caveated21.3%	Needs confirmation
Choppards Lane	near Hade Edge	—	sustained	269 m	40 m	14.8%	22.1%	High
Chuley Hill	near Ashburton · Devon	—	sustained	704 m	94 m	13.4%	20.3%	Good
Chur Lane	near West Coker · Somerset	—	stepped	484 m	55 m	11.3%	26.3%	Good
Church Avenue	near Lower Wellhouse	—	sustained	222 m	40 m	17.9%	25.5%	High
Church Cove Road	near Lizard · Cornwall	—	sustained	693 m	59 m	8.5%	21.7%	Needs confirmation
Church Road	near Stone Street · Kent	—	stepped	540 m	31 m	5.8%	20.5%	Needs confirmation
Churchbridge to Pendriscott^°	near Churchbridge · Cornwall	—	stepped	1486 m	91 m	6.1%	≈caveated21.2%	Good
Churchill Hill	near Clifton · Devon	—	stepped	1045 m	64 m	6.1%	24.6%	Good
Churchill Road	near Minchinhampton · Gloucestershire	—	sustained	353 m	39 m	11.0%	22.4%	High
Churchill to Churchill Down^°	near Churchill · Devon	—	stepped	1611 m	61 m	3.8%	21.3%	High
Churchwater to Cottwood^°	near Riddlecombe · Devon	—	stepped	2094 m	97 m	4.6%	21.3%	Good
Cinder Hills Road	near Holmfirth	—	sustained	1322 m	113 m	8.5%	23.6%	Needs confirmation
Clampit to Hatt^°	near Botusfleming · Cornwall	—	sustained	1326 m	82 m	6.2%	≈caveated20.4%	Good
Clanyard to Kirkmaiden^°	near Clanyard · Dumfries and Galloway	—	stepped	2679 m	58 m	2.2%	20.4%	High
Clapworthy to Broden Hill^°	near Clapworthy · Devon	—	sustained	2126 m	112 m	5.3%	24.7%	Good
Clearways Lane	near Garelochhead · Argyll and Bute	—	sustained	109 m	22 m	19.8%	≈caveated30.3%	Needs confirmation
Clifton Hill	near Abertawe · West Glamorgan	—	sustained	141 m	34 m	23.9%	27.8%	High
Clun to Langford's Dingle^°	near Clun · Shropshire	—	sustained	2036 m	80 m	3.9%	21.3%	High
Clynnog Fawr to Bwlch Mawr^°	near Clynnog Fawr · Gwynedd	—	stepped	3170 m	192 m	6.1%	22.8%	High
Cnoc na Grèine to Achnaslishaig Hill^°	near Glen Remuil · Argyll and Bute	—	sustained	1048 m	100 m	9.5%	25.9%	Needs confirmation
Co-operation Street	near Rake Foot · Lancashire	—	sustained	396 m	47 m	11.8%	≈caveated24.8%	Needs confirmation
Coal Road	near Cowgill · Cumbria	—	sustained	3976 m	302 m	7.6%	≈caveated20.6%	Good
Coal Road	near Garsdale Head · Cumbria	100 Climbs²	sustained	2222 m	215 m	9.7%	21.9%	Good
Coalmire Lane	near Swainby · North Yorkshire	—	stepped	2249 m	137 m	6.1%	21.2%	High
Cock's Lake Lane	near Landrake · Cornwall	—	sustained	1859 m	60 m	3.2%	21.1%	Needs confirmation
Coedanghred Hill to Maypole^°	near Llanrothal · Herefordshire	—	sustained	3151 m	75 m	2.4%	22.2%	High
COL/216/10	near Marsden	—	sustained	241 m	36 m	15.0%	21.2%	High
Coldweather Avenue	near Nelson · Lancashire	—	stepped	532 m	42 m	7.8%	21.0%	Good
Coleford Hill	near Coleford Bottom · Devon	—	stepped	2083 m	141 m	6.8%	29.1%	Good
Collaton Road	near Malborough · Devon	—	sustained	578 m	48 m	8.3%	22.6%	High
Collin to Carthat Hill^°	near Collin · Dumfries and Galloway	—	sustained	3707 m	196 m	5.3%	16.1%	Good
Colly Cliff to Calstock^°	near Colly Cliff · Cornwall	—	stepped	715 m	50 m	7.0%	≈caveated20.9%	Good
Colstrope Lane	near Pheasant's Hill · Buckinghamshire	—	stepped	1790 m	108 m	6.0%	26.0%	Good
Colton Hill	near Spark Bridge · Cumbria	—	sustained	452 m	71 m	15.7%	23.1%	High
Colwell to Widworthy Hill^°	near Colwell · Devon	—	sustained	2610 m	128 m	4.9%	20.5%	Good
Colwell to Widworthy Hill^°	near Colwell · Devon	—	sustained	3664 m	112 m	3.1%	≈caveated20.5%	Good
Combe to The Glen^°	near Combe · Devon	—	stepped	1630 m	87 m	5.3%	23.6%	Good
Combe to Wallaford Down^°	near Combe · Devon	—	sustained	1522 m	159 m	10.4%	26.9%	High
Combe to West Soar^°	near Salcombe · Devon	—	stepped	1174 m	81 m	6.9%	21.3%	High
Commin Road	near Bargod · Gwent	—	stepped	1344 m	119 m	8.9%	21.0%	High
Commins Coch to Darowen^°	near Commins Coch · Powys	—	sustained	2468 m	119 m	4.8%	26.5%	Good
Constantine to Brillwater^°	near Constantine · Cornwall	—	sustained	1139 m	70 m	6.2%	20.4%	Needs confirmation
Constitution Hill	near Abertawe · West Glamorgan	Wikipedia³, 100 Climbs²	sustained	348 m	61 m	17.4%	21.9%	High
Coombe to Hewas Water^°	near Coombe · Cornwall	—	stepped	1444 m	80 m	5.5%	≈caveated20.2%	Good
Coombesdale	near Stableford · Staffordshire	—	stepped	1762 m	72 m	4.1%	23.0%	Good
Cooper's Pitch	near Houndscroft · Gloucestershire	—	sustained	150 m	20 m	13.6%	22.1%	High
Cop Hill Side	near Lingards Wood	—	stepped	1953 m	171 m	8.8%	25.3%	Good
Cophill to Perry Hill^°	near Eaton Bishop · Herefordshire	—	stepped	1556 m	53 m	3.4%	≈caveated19.8%	Good
Copplesbury Lane	near Bruton · Somerset	—	stepped	1531 m	46 m	3.0%	≈caveated20.2%	Good
Coral Haven to Litterty Hill^°	near Pennan · Aberdeenshire	—	sustained	2722 m	187 m	6.9%	≈caveated20.0%	Good
Coronation Street	near Wyndham · Mid Glamorgan	—	stepped	307 m	35 m	11.4%	29.6%	High
Cot Valley to Kelynack^°	near St Just · Cornwall	—	sustained	868 m	42 m	4.8%	≈caveated17.9%	Needs confirmation
Cote Lane	near Meerbrook · Staffordshire	—	sustained	4107 m	217 m	5.3%	23.1%	High
Cotley Lane	near Dunsford · Devon	—	sustained	2920 m	129 m	4.4%	≈caveated17.2%	Good
Couch's Mill to Bury Down^°	near Couch's Mill · Cornwall	—	stepped	3388 m	120 m	3.5%	25.7%	High
Countisbury Hill	near Lynton · Devon	—	sustained	678 m	100 m	14.8%	≈caveated21.1%	Good
Court Henry to Llanfynydd^°	near Court Henry · Dyfed	—	sustained	4573 m	185 m	4.0%	≈caveated20.2%	Good
Cove to Dry Hill^°	near Cove · Devon	—	sustained	1622 m	152 m	9.4%	21.0%	High
Cowbar Bank	near Staithes · North Yorkshire	—	stepped	1389 m	63 m	4.6%	≈caveated22.0%	Needs confirmation
Cowlow Lane	near Combs · Derbyshire	—	stepped	2493 m	155 m	6.2%	20.5%	Needs confirmation
Cox Hill to Blackdown Hill^°	near Curtisknowle · Devon	—	sustained	2097 m	153 m	7.3%	≈caveated23.4%	Good
Cox Hill to Curtisknowle^°	near Curtisknowle · Devon	—	stepped	2309 m	125 m	5.4%	≈caveated23.7%	Good
Crackington Haven to Middle Crackington^°	near Crackington Haven · Cornwall	—	sustained	1663 m	127 m	7.7%	24.4%	Good
Cragg Lane	near Wriggles Bottom	—	sustained	382 m	68 m	17.7%	≈caveated27.0%	Good
Craigs Bank	near Kellah · Northumberland	—	stepped	956 m	57 m	6.0%	23.8%	Good
Cranford Road	near Shorton · Devon	—	stepped	1087 m	82 m	7.6%	20.4%	High
Crawleyside Bank^°	near Stanhope · County Durham	National HC¹, 100 Climbs²	sustained	3078 m	225 m	7.3%	17.9%	High
Creigiau'r Llyn to Foel Y Groes^°	near Cwm Eunant · Powys	—	sustained	6349 m	286 m	4.5%	≈caveated19.7%	Good
Cribden End Lane	near Haslingden · Lancashire	—	sustained	1577 m	88 m	5.6%	20.3%	High
Crimea Pass (Bwlch y Gorddinan)	near Blaenau Ffestiniog · Gwynedd	Wikipedia³, Warren app⁴	sustained	2705 m	260 m	9.6%	≈caveated18.4%	Needs confirmation
Croesau Bach to Craig-llwyn^°	near Croesau Bach · Shropshire	—	stepped	2806 m	72 m	2.6%	22.1%	High
Croesau Bach to Mynydd Myfyr^°	near Trefonen · Shropshire	—	stepped	1682 m	44 m	2.6%	20.3%	High
Croesau Bach to Pentre-cefn^°	near Croesau Bach · Shropshire	—	stepped	3368 m	149 m	4.4%	22.8%	High
Croftown to Corrieshalloch Gorge^°	near Croftown · Highland	—	stepped	7363 m	174 m	2.4%	≈caveated12.3%	Good
Crook Hill to Orblis Hill^°	near Lochwinnoch · Renfrewshire	—	sustained	4836 m	159 m	3.3%	≈caveated10.3%	Good
Crooked Yard Lane	near Walker Barn · Cheshire	—	sustained	2256 m	180 m	8.0%	23.4%	High
Cross of Greet	near White Syke Clough · Lancashire	100 Climbs²	sustained	4330 m	72 m	1.7%	17.2%	Needs confirmation
Cross Stone Road	near Todmorden	—	sustained	2249 m	234 m	10.4%	≈caveated24.1%	Good
Crosscrake to Oxenholme^°	near Barrows Green · Cumbria	—	sustained	2961 m	84 m	2.8%	21.9%	High
Crosshill to Meikle Hill^°	near Crosshill · South Ayrshire	—	sustained	4382 m	175 m	4.0%	≈caveated20.0%	Needs confirmation
Crossway to Tyn Green Castle^°	near Crossway · Powys	—	stepped	2848 m	112 m	3.9%	22.1%	High
Crow Road	near Lennoxtown · East Dunbartonshire	—	sustained	3439 m	217 m	6.3%	≈caveated12.3%	Good
Crow Tree Lane	near Fairweather Green	—	stepped	593 m	43 m	7.2%	20.8%	Good
Crowcombe Combe^°	near Crowcombe · Somerset	100 Climbs²	sustained	1413 m	191 m	13.5%	23.0%	Good
Crowcombe Road	near Nether Stowey · Somerset	—	stepped	4140 m	214 m	5.2%	20.8%	High
Crowther's Hill	near Dartmouth · Devon	—	sustained	394 m	71 m	17.9%	24.4%	Good
Crowthers Pool	near Rhydspence · Herefordshire	—	sustained	2452 m	198 m	8.1%	25.0%	Needs confirmation
Cruwy's Morchard Mill Lane	near Withleigh · Devon	—	sustained	1579 m	130 m	8.2%	22.2%	High
Cullochrig Road	near Douglas Glen · North Lanarkshire	—	stepped	394 m	29 m	7.5%	≈caveated26.2%	Good
Cusop Dingle to Maerdy Dingle^°	near Cusop · Herefordshire	—	sustained	3617 m	181 m	5.0%	≈caveated21.6%	Needs confirmation
Cwm Dulais to Cwm Ysgiach^°	near Cwm Dulais · West Glamorgan	—	stepped	1908 m	39 m	2.0%	27.1%	High
Cwm Ffrydlan to Bryn Mawr^°	near Cwm Ffrydlan · Powys	—	stepped	3364 m	193 m	5.8%	≈caveated27.0%	Good
Cwm Glas to Pen Lan-fawr^°	near Cwm Glas · Dyfed	—	sustained	3263 m	179 m	5.5%	≈caveated21.1%	Needs confirmation
Cwm Golau to Babel	near Cwm Golau · Dyfed	—	stepped	3854 m	139 m	3.6%	23.1%	Good
Cwm Llwynau to Cwm Cnyw^°	near Hafodyrynys · Gwent	—	stepped	1135 m	70 m	6.2%	≈caveated26.8%	Good
Cwm Rhiwiau to Llandyfalle Hill	near Cwm Rhiwiau · Powys	—	sustained	1293 m	101 m	7.8%	22.3%	Good
Cwm Road	near Abbey Dore · Herefordshire	—	stepped	1636 m	107 m	6.5%	21.1%	High
Cwm Sŷch to Cwm Dyfnant^°	near Llanfair-ym-Muallt · Powys	—	sustained	2681 m	177 m	6.6%	≈caveated26.4%	Good
Cwm Wern-ddu to Llanfihangel-y-Creuddyn^°	near Cwm Wern-ddu · Dyfed	—	sustained	1549 m	98 m	6.3%	≈caveated20.1%	Good
Cwm y Gâth to Bryn-y-Fedwen^°	near Cwm y Gâth · Powys	—	sustained	8271 m	456 m	5.5%	22.6%	Needs confirmation
Cwm-hirblyg to Glyn Llydan^°	near Cwm-hirblyg · Dyfed	—	sustained	2890 m	96 m	3.3%	≈caveated26.7%	Good
Cwm-hirblyg to Pen Rhiw-Wen^°	near Cwm-hirblyg · Dyfed	—	sustained	5282 m	272 m	5.2%	18.7%	Good
Cwmystwyth to Bryn Bach	near Cwmystwyth · Dyfed	—	sustained	1563 m	169 m	10.8%	22.9%	Needs confirmation
Cwrdy Lane	near Sebastopol · Gwent	—	stepped	1757 m	158 m	9.0%	≈caveated28.7%	Good
Cwrt	near Abergynolwyn · Gwynedd	—	sustained	235 m	29 m	12.4%	22.7%	Good
Cyffredyn to Blaen Onneu^°	near Llangynidr · Powys	—	sustained	4794 m	323 m	6.7%	16.2%	Good
Dabdike Stones to Runswick Bay^°	near Runswick Bay · North Yorkshire	—	sustained	418 m	68 m	16.4%	26.6%	Good
Daccombe Hill	near Barton · Devon	—	sustained	408 m	58 m	14.3%	25.9%	Needs confirmation
Dalton to Weather Hill^°	near Dalton · North Yorkshire	—	sustained	2338 m	151 m	6.5%	20.3%	Good
Damson Hill	near Dundridge · Hampshire	—	stepped	1675 m	66 m	3.9%	22.4%	High
Daneway to Waterlane^°	near Sapperton · Gloucestershire	—	sustained	2800 m	94 m	3.3%	25.6%	Needs confirmation
Danycoed Terrace	near Tonypandy · Mid Glamorgan	—	sustained	779 m	103 m	13.2%	20.1%	High
Dardy to Blaen Onneu^°	near Crughywel · Powys	—	sustained	6272 m	328 m	5.2%	≈caveated23.2%	Good
Dark Lane	near North Cerney · Gloucestershire	—	stepped	3312 m	43 m	1.3%	≈caveated21.7%	Good
Darkie Hill	near Battisborough Cross · Devon	—	sustained	341 m	40 m	11.8%	23.1%	High
Darloe Lane	near Looe · Cornwall	—	sustained	417 m	56 m	13.4%	30.5%	Good
Dartmeet^°	near Dartmeet · Devon	100 Climbs²	sustained	1042 m	130 m	12.4%	18.2%	Good
David Street	near Pontycymer · Mid Glamorgan	—	sustained	808 m	51 m	6.3%	21.1%	High
Deanhill Lane	near Upper Weston · Somerset	—	stepped	545 m	59 m	10.8%	22.9%	Good
Deepdale Lane	near Dent · Cumbria	—	stepped	4965 m	301 m	6.1%	25.5%	Needs confirmation
Deers Hill to Higher Hill^°	near Kennford · Devon	—	sustained	3746 m	181 m	4.8%	20.8%	Good
Dell Road	near Colinton · City of Edinburgh	—	sustained	398 m	33 m	8.2%	≈caveated21.5%	Good
Denacre Lane	near Darley Dale · Derbyshire	—	sustained	582 m	85 m	14.6%	21.8%	Good
Derwen Lane	near Glanwydden · Clwyd	—	stepped	1188 m	78 m	6.5%	27.2%	High
Devil's Staircase	near Coed Nant-yr-hwch · Powys	Another 100⁵, 100 Climbs²	sustained	841 m	111 m	13.2%	24.5%	High
Devil's Staircase (west side)	near Coed Nant-yr-hwch · Powys	tag: 25% (2026)	stepped	2348 m	181 m	7.7%	22.3%	High
Dinas Oleu Lane	near Abermaw · Gwynedd	—	sustained	198 m	43 m	21.5%	≈caveated29.4%	Good
Discoed to Upper Dunn's Plantation^°	near Discoed · Powys	—	stepped	2144 m	164 m	7.7%	≈caveated26.2%	Good
Discovered lane (50.2310, -4.8096)	near Cadythew Rock · Cornwall	—	sustained	660 m	77 m	11.7%	≈caveated24.8%	Good
Discovered lane (50.2409, -3.8367)	near Galmpton · Devon	—	sustained	649 m	29 m	4.4%	≈caveated22.9%	Good
Discovered lane (50.3179, -3.8471)	near Aveton Gifford · Devon	—	stinger	971 m	50 m	5.1%	26.2%	High
Discovered lane (50.3555, -3.7203)	near Halwell · Devon	—	sustained	982 m	55 m	5.6%	21.6%	Needs confirmation
Discovered lane (50.4096, -4.6722)	near Lostwithiel · Cornwall	—	sustained	469 m	58 m	12.4%	≈caveated25.9%	Good
Discovered lane (50.4927, -4.5551)	near St Neot · Cornwall	—	sustained	1993 m	110 m	5.5%	≈caveated22.0%	Needs confirmation
Discovered lane (50.4959, -3.8182)	near Combe · Devon	—	stepped	1093 m	30 m	2.7%	24.5%	High
Discovered lane (50.5752, -3.5606)	near Ideford · Devon	—	sustained	1163 m	36 m	3.1%	22.2%	High
Discovered lane (50.6122, -3.7194)	near Lustleigh · Devon	—	sustained	912 m	74 m	8.2%	23.5%	High
Discovered lane (50.7305, -3.6254)	near Glanvill's Close · Devon	—	sustained	644 m	66 m	10.2%	21.1%	High
Discovered lane (50.8500, -3.0519)	near Crawley · Devon	—	sustained	1479 m	84 m	5.7%	21.7%	Good
Discovered lane (50.9519, -3.9219)	near Burrington · Devon	—	stepped	1529 m	102 m	6.7%	≈caveated24.6%	Good
Discovered lane (51.0613, -3.5461)	near Rock Head · Somerset	—	sustained	456 m	54 m	11.9%	≈caveated23.9%	Good
Discovered lane (51.0725, 1.0161)	near Lympne · Kent	—	stepped	625 m	38 m	6.1%	21.2%	High
Discovered lane (51.1037, -3.6465)	near Withypool · Somerset	—	sustained	537 m	58 m	10.8%	21.0%	High
Discovered lane (51.1089, -4.1444)	near Wrafton · Devon	—	stepped	931 m	63 m	6.7%	≈caveated21.4%	Good
Discovered lane (51.2152, -3.8419)	near Barbrook · Devon	—	sustained	826 m	64 m	7.7%	20.0%	High
Discovered lane (51.3379, -2.2777)	near Turleigh · Wiltshire	—	sustained	550 m	61 m	11.1%	21.8%	High
Discovered lane (51.4234, -2.3842)	near Upper Langridge · Somerset	—	sustained	972 m	73 m	7.6%	20.2%	High
Discovered lane (51.5894, -3.2997)	near Hawthorn · Mid Glamorgan	—	stepped	1263 m	123 m	9.8%	≈caveated29.2%	Needs confirmation
Discovered lane (51.6073, -3.3834)	near Trehafod · Mid Glamorgan	—	stepped	136 m	9 m	6.8%	21.0%	High
Discovered lane (51.6278, -3.5445)	near Nant-y-moel · Mid Glamorgan	—	sustained	202 m	34 m	16.8%	22.1%	High
Discovered lane (51.6303, -3.4767)	near Blaen Clydach · Mid Glamorgan	—	sustained	88 m	15 m	17.1%	20.2%	High
Discovered lane (51.6314, -3.0675)	near Henllys · Gwent	—	sustained	762 m	128 m	16.8%	≈caveated28.2%	Good
Discovered lane (51.6845, -2.2358)	near Nailsworth · Gloucestershire	—	stepped	1109 m	78 m	7.0%	≈caveated20.6%	Good
Discovered lane (51.7297, -3.1809)	near Cwm · Gwent	—	sustained	1856 m	164 m	8.8%	≈caveated27.8%	Good
Discovered lane (51.7460, -3.1817)	near Cwm · Gwent	—	sustained	441 m	46 m	10.4%	20.0%	High
Discovered lane (51.7843, -3.3796)	near Faenor · Mid Glamorgan	—	sustained	659 m	59 m	9.0%	20.7%	High
Discovered lane (51.7867, -2.2443)	near Colethrop · Gloucestershire	—	stepped	1612 m	133 m	8.3%	28.0%	Needs confirmation
Discovered lane (51.8097, -2.1693)	near Cranham · Gloucestershire	—	sustained	961 m	78 m	8.1%	20.9%	High
Discovered lane (51.8177, -2.5947)	near Edge End · Gloucestershire	—	sustained	257 m	32 m	12.3%	≈caveated21.8%	Needs confirmation
Discovered lane (51.8267, -2.4582)	near Pope's Hill · Gloucestershire	—	sustained	385 m	36 m	9.3%	21.7%	High
Discovered lane (51.8389, -3.1595)	near Llangatwg · Powys	—	sustained	2180 m	227 m	10.4%	≈caveated28.7%	Good
Discovered lane (51.8418, -2.7325)	near Buckholt · Gwent	—	stepped	906 m	52 m	5.8%	20.5%	High
Discovered lane (51.8534, -3.0168)	near Pantygelli · Gwent	—	sustained	729 m	83 m	11.4%	≈caveated30.8%	Good
Discovered lane (51.8536, -2.7576)	near St Maughan's Green · Gwent	—	sustained	1489 m	85 m	5.7%	21.8%	High
Discovered lane (51.8708, -2.4623)	near Longhope · Gloucestershire	—	sustained	391 m	35 m	9.0%	20.7%	Needs confirmation
Discovered lane (51.8923, -3.2369)	near Bwlch · Powys	—	sustained	231 m	34 m	14.8%	≈caveated26.5%	Good
Discovered lane (51.9364, -2.0278)	near Woodmancote · Gloucestershire	—	stepped	1623 m	140 m	8.6%	24.1%	High
Discovered lane (51.9372, -3.2371)	near Llangors · Powys	—	sustained	2897 m	133 m	4.6%	≈caveated27.5%	Good
Discovered lane (52.0055, -1.8947)	near Stanton · Gloucestershire	—	sustained	235 m	24 m	10.3%	20.8%	High
Discovered lane (52.0465, -3.0080)	near Snodhill · Herefordshire	—	sustained	791 m	95 m	12.0%	21.1%	High
Discovered lane (52.0601, -3.0169)	near Dorstone · Herefordshire	—	stepped	2578 m	187 m	7.3%	≈caveated24.3%	Needs confirmation
Discovered lane (52.0829, -3.0457)	near Westbrook · Herefordshire	—	sustained	503 m	73 m	14.5%	23.4%	High
Discovered lane (52.1003, -3.3602)^°	near Llandeilo Graban · Powys	—	sustained	2933 m	200 m	6.8%	≈caveated26.4%	Good
Discovered lane (52.1102, -3.2505)	near Llanbedr · Powys	—	sustained	366 m	43 m	11.8%	≈caveated26.4%	Good
Discovered lane (52.1970, -4.1201)	near Tal-sarn · Dyfed	—	stepped	1263 m	106 m	8.4%	23.1%	High
Discovered lane (52.2837, -2.3727)	near Great Witley · Worcestershire	—	sustained	902 m	70 m	7.8%	20.9%	High
Discovered lane (52.4211, -2.5332)	near Oreton · Shropshire	—	stepped	2310 m	72 m	3.1%	22.6%	High
Discovered lane (52.4954, -3.1856)	near Sarn · Powys	—	sustained	1187 m	64 m	5.4%	≈caveated27.1%	Good
Discovered lane (52.5120, -3.9649)	near Tre'r-ddol · Dyfed	—	sustained	3537 m	208 m	5.9%	≈caveated28.1%	Good
Discovered lane (52.5667, -2.9026)	near Bridges · Shropshire	—	sustained	2758 m	163 m	5.9%	21.8%	High
Discovered lane (52.5682, -3.0436)	near Priest Weston · Shropshire	—	sustained	1344 m	128 m	9.5%	22.4%	High
Discovered lane (52.7180, -3.3470)^°	near Pontrobert · Powys	—	stepped	5432 m	172 m	3.2%	≈caveated26.1%	Good
Discovered lane (52.7368, -3.8754)	near Dolgellau · Gwynedd	—	sustained	1236 m	130 m	10.5%	≈caveated27.1%	Good
Discovered lane (52.7658, -3.9416)	near Pen-y-bryn · Gwynedd	—	sustained	1391 m	141 m	10.1%	≈caveated28.7%	Good
Discovered lane (52.7738, -2.9066)	near Nesscliffe · Shropshire	—	stepped	232 m	22 m	9.4%	≈caveated20.7%	Good
Discovered lane (52.8346, -1.3744)	near Isley Walton · Leicestershire	—	sustained	472 m	29 m	6.1%	25.6%	High
Discovered lane (52.8576, -4.0958)	near Harlech · Gwynedd	—	sustained	1505 m	159 m	10.6%	22.1%	High
Discovered lane (53.0059, -3.6373)	near Cwm Penanner · Gwynedd	—	stepped	695 m	32 m	4.6%	20.5%	High
Discovered lane (53.0685, -3.2571)	near Graig-fechan · Clwyd	—	sustained	952 m	114 m	11.9%	33.6%	Needs confirmation
Discovered lane (53.1125, -3.0561)	near Caergwrle · Clwyd	—	sustained	2190 m	192 m	8.8%	≈caveated28.0%	Good
Discovered lane (53.1242, -3.7104)	near Gwytherin · Clwyd	—	stepped	3333 m	175 m	5.2%	≈caveated21.9%	Good
Discovered lane (53.1348, -3.4401)	near Pant-pastynog · Clwyd	—	stepped	2104 m	141 m	6.7%	≈caveated28.5%	Good
Discovered lane (53.1828, -1.6047)	near Northwood · Derbyshire	—	sustained	719 m	76 m	10.6%	23.2%	High
Discovered lane (53.2217, -3.3531)	near Bodfari · Clwyd	—	sustained	273 m	47 m	17.1%	≈caveated28.9%	Good
Discovered lane (53.2268, -3.3050)	near Caerwys · Clwyd	—	sustained	1635 m	200 m	12.2%	≈caveated21.5%	Needs confirmation
Discovered lane (53.3000, -2.0680)	near Bollington · Cheshire	—	stinger	170 m	5 m	3.0%	21.2%	High
Discovered lane (53.3288, -1.9579)	near Whaley Bridge · Derbyshire	—	sustained	2058 m	129 m	6.3%	20.3%	High
Discovered lane (53.3408, -1.8988)	near Chapel-en-le-Frith · Derbyshire	—	sustained	581 m	61 m	10.5%	22.0%	High
Discovered lane (53.3462, -1.9621)	near Whaley Bridge · Derbyshire	—	sustained	2026 m	173 m	8.5%	22.3%	High
Discovered lane (53.6996, -1.9222)	near Sowerby Bridge	—	stepped	1379 m	96 m	7.0%	25.4%	High
Discovered lane (53.7012, -2.0042)	near Cragg Vale	—	sustained	870 m	93 m	10.7%	≈caveated22.4%	Good
Discovered lane (54.1595, -6.3391)	near Newry · County Down	—	stepped	346 m	29 m	8.3%	28.9%	High
Discovered lane (54.1924, -6.3316)	near Newry · County Down	—	sustained	137 m	26 m	19.2%	27.4%	High
Discovered lane (54.2293, -3.1154)	near Broughton Beck · Cumbria	—	sustained	1887 m	142 m	7.5%	20.4%	High
Discovered lane (54.2333, -3.3029)	near Whicham · Cumbria	—	stepped	1304 m	106 m	8.1%	23.3%	Good
Discovered lane (54.2423, -2.9885)	near Haverthwaite · Cumbria	—	sustained	1190 m	129 m	10.8%	≈caveated20.8%	Needs confirmation
Discovered lane (54.2728, -3.0251)	near Rusland Valley · Cumbria	—	sustained	1762 m	30 m	1.7%	21.0%	High
Discovered lane (54.2794, -3.0561)	near Bandrake Head · Cumbria	—	stepped	1055 m	61 m	5.8%	20.7%	High
Discovered lane (54.2807, -2.5890)	near Head of Blea Wheel · Cumbria	—	stepped	3744 m	90 m	2.4%	≈caveated20.2%	Good
Discovered lane (54.3127, -2.9214)	near Hubbersty Head · Cumbria	—	sustained	1182 m	88 m	7.5%	23.0%	High
Discovered lane (54.3129, -3.1900)	near Broughton Mills · Cumbria	—	sustained	1180 m	124 m	10.5%	≈caveated22.1%	Good
Discovered lane (54.3818, -2.0735)	near Gunnerside · North Yorkshire	—	sustained	1195 m	170 m	14.2%	24.7%	High
Discovered lane (54.3832, -1.7793)	near Richmond · North Yorkshire	—	sustained	2955 m	137 m	4.7%	≈caveated21.4%	Needs confirmation
Discovered lane (54.3899, -1.9789)	near Healaugh · North Yorkshire	—	sustained	855 m	108 m	12.6%	25.0%	High
Discovered lane (54.4339, -0.6593)	near Littlebeck · North Yorkshire	—	sustained	931 m	116 m	12.5%	22.7%	High
Discovered lane (54.4368, -0.8082)	near Glaisdale · North Yorkshire	—	sustained	355 m	40 m	11.2%	21.6%	High
Discovered lane (54.4480, -3.0133)	near Heron Island · Cumbria	—	sustained	1139 m	52 m	4.6%	25.0%	High
Discovered lane (54.5635, -2.8773)	near Martindale · Cumbria	—	sustained	309 m	38 m	12.4%	20.8%	High
Discovered lane (54.7070, -2.5770)	near Ousby · Cumbria	—	sustained	906 m	44 m	4.9%	≈caveated21.0%	Good
Discovered lane (54.7938, -2.4326)	near Alston · Cumbria	—	sustained	1999 m	114 m	5.7%	20.3%	Good
Discovered lane (54.8901, -2.7098)	near Castle Carrock · Cumbria	—	sustained	4058 m	139 m	3.4%	26.4%	High
Discovered lane (54.9287, -2.1251)	near Dalton · Northumberland	—	sustained	2877 m	72 m	2.5%	21.0%	Good
Ditchling Bostall	near Ditchling · East Sussex	National HC¹, 100 Climbs²	sustained	1838 m	153 m	8.3%	15.1%	High
Dittisham to Capton^°	near Dittisham · Devon	—	stepped	3211 m	156 m	4.8%	≈caveated22.3%	Needs confirmation
Dockins Hill Way	near Plump Hill · Gloucestershire	—	sustained	622 m	54 m	8.8%	≈caveated22.4%	Good
Doctors Hill	near Ashley · Wiltshire	—	stepped	799 m	66 m	8.2%	≈caveated24.0%	Good
Dole to Broginin^°	near Dole · Dyfed	—	sustained	1479 m	81 m	5.5%	21.4%	Needs confirmation
Dolhendre to Carndochan^°	near Rhosdylluan · Gwynedd	—	sustained	642 m	53 m	8.3%	≈caveated26.5%	Good
Donkey Lane	near Millbrook · Cornwall	—	sustained	1171 m	93 m	7.9%	24.0%	Needs confirmation
Douglas Street	near Broomielaw · Glasgow City	—	sustained	411 m	32 m	7.9%	20.1%	Good
Dover's Hill^°	near Weston-sub-Edge · Gloucestershire	National HC¹, 100 Climbs²	sustained	1660 m	144 m	8.7%	≈caveated21.7%	Good
Doverhay	near Porlock · Somerset	—	sustained	2356 m	239 m	10.2%	≈caveated26.7%	Good
Down Hill to Myrehaugh Hill^°	near Fossoway · Perth and Kinross	—	sustained	1360 m	58 m	4.3%	≈caveated22.1%	Needs confirmation
Downaway Lane	near Coffinswell · Devon	—	stepped	1712 m	116 m	6.8%	20.9%	Good
Downe Road	near Luxted · Greater London	DG London list⁶	stepped	1016 m	55 m	5.4%	≈caveated22.6%	Good
Draycott Cross Road	near Brookhouses · Staffordshire	—	stepped	1109 m	84 m	7.6%	20.0%	Good
Drift Lane	near West Taphouse · Cornwall	—	sustained	968 m	54 m	5.6%	20.8%	Good
Drumber Lane	near The Bank · Cheshire	—	sustained	1037 m	96 m	9.2%	21.4%	Good
Drummochy to New Gilston^°	near Lower Largo · Fife	—	sustained	5799 m	181 m	3.1%	14.3%	High
Drymump Hill	near Meshaw · Devon	—	sustained	336 m	46 m	13.7%	≈caveated22.6%	Needs confirmation
Dugberry Hill	near Powerstock · Dorset	—	stepped	884 m	59 m	6.7%	21.4%	Good
Dukewood Road	near Scissett	—	stepped	459 m	30 m	6.6%	22.8%	High
Duncart Lane	near Croscombe · Somerset	—	stepped	986 m	70 m	7.1%	≈caveated26.4%	Good
Duncombe Street	near Upperthorpe	—	sustained	1158 m	112 m	9.7%	20.0%	High
Dundee Lane	near Ramsbottom	—	stepped	986 m	77 m	7.9%	≈caveated21.7%	Good
Dunder Hole to Mortehoe^°	near Mortehoe · Devon	—	stepped	488 m	39 m	8.1%	20.2%	High
Dunkery Beacon (from Luccombe)	near Allerford · Somerset	100 Climbs²	sustained	2248 m	199 m	8.9%	19.3%	Good
Dunsford to Westcott^°	near Dunsford · Devon	—	sustained	3096 m	230 m	7.4%	20.6%	Good
Dunsley Hill	near West Anstey · Devon	—	sustained	1635 m	72 m	4.4%	21.4%	Good
Dunsley Lane	near Sandsend · North Yorkshire	—	sustained	5172 m	208 m	4.0%	20.9%	Good
Dunvant Avenue	near Clyne · West Glamorgan	—	stepped	279 m	28 m	9.9%	27.9%	Good
Dutlas to Hurgin^°	near Dutlas · Powys	—	stepped	5614 m	186 m	3.3%	21.5%	Good
Dyffryn Conwy to Mynydd Cauedig^°	near Dyffryn Conwy · Clwyd	—	sustained	1784 m	176 m	9.9%	≈caveated26.8%	Good
Easebourne Street	near Bexleyhill · West Sussex	—	sustained	474 m	60 m	12.7%	29.5%	Good
East Cornworthy to Cornworthy^°	near Cornworthy · Devon	—	stepped	911 m	50 m	5.5%	≈caveated25.9%	Good
East Helmsdale to Creag Marail^°	near East Helmsdale · Highland	—	sustained	2446 m	160 m	6.6%	≈caveated17.1%	Needs confirmation
East Taphouse to St Pinnock^°	near East Taphouse · Cornwall	—	sustained	518 m	74 m	14.2%	≈caveated22.5%	Needs confirmation
Easterside Lane	near Hawnby · North Yorkshire	—	stepped	825 m	61 m	7.4%	26.1%	High
Easton Hollow	near Berwick St John · Wiltshire	—	sustained	1296 m	100 m	7.7%	21.6%	High
Easton to West Alvington^°	near West Alvington · Devon	—	sustained	443 m	54 m	12.2%	≈caveated23.8%	Needs confirmation
Eastwood Lane	near Littlemoor · Derbyshire	—	stepped	1008 m	83 m	8.3%	24.4%	High
Eastwood Road	near Upper Eastwood	—	stepped	3003 m	146 m	4.9%	22.8%	High
Eden Mount	near Grange-over-Sands · Cumbria	—	sustained	969 m	97 m	10.0%	29.8%	High
Eisingrug to Moel y Geifr^°	near Eisingrug · Gwynedd	—	sustained	2149 m	217 m	10.1%	≈caveated22.0%	Good
Ellen Royd Lane	near Luddenden Foot	—	sustained	773 m	81 m	10.5%	≈caveated23.6%	Good
Ellerby Bank	near Ellerby · North Yorkshire	—	sustained	1044 m	75 m	7.2%	24.3%	Needs confirmation
Ellers Road	near Sutton-in-Craven · North Yorkshire	—	sustained	2139 m	230 m	10.8%	20.6%	Good
Elscombe Lane	near Burrow · Somerset	—	sustained	508 m	48 m	9.4%	≈caveated20.8%	Needs confirmation
Ermington to Westlake^°	near Ermington · Devon	—	stepped	1239 m	92 m	7.4%	20.2%	Good
Erwyd to Llangynog^°	near Erwyd · Powys	—	sustained	5937 m	308 m	5.2%	≈caveated18.9%	Good
Esdale Law to Harden Glen^°	near White Cleuch · Scottish Borders	—	sustained	2926 m	173 m	5.9%	13.8%	Good
Evelith Lane	near Kemberton · Shropshire	—	sustained	1672 m	37 m	2.2%	≈caveated26.1%	Needs confirmation
Ewood Hall Avenue	near Brearley	—	sustained	371 m	39 m	10.4%	20.8%	High
Ewood Lane	near Ewood Bridge · Lancashire	—	sustained	448 m	42 m	9.5%	23.9%	Needs confirmation
Exmoor Forest	near Cheriton · Devon	100 Climbs²	sustained	3482 m	201 m	5.8%	≈caveated13.7%	Good
Exton Lane	near Bridgetown · Somerset	—	stepped	1712 m	152 m	8.9%	≈caveated24.0%	Good
Fagwr Road	near Rhyd-y-gwin · West Glamorgan	—	sustained	481 m	47 m	9.7%	≈caveated26.5%	Good
Fair Head Lane	near Grosmont · North Yorkshire	—	sustained	947 m	128 m	13.5%	22.2%	High
Fairfax Terrace	near Ford · Devon	—	sustained	176 m	31 m	17.8%	22.8%	High
Fairfield Avenue	near Larkhall · Somerset	—	sustained	616 m	69 m	11.2%	20.8%	High
Fairview Road	near Dartmouth · Devon	—	sustained	1101 m	103 m	9.3%	≈caveated24.8%	Good
Fairy Glen	near Wyndham · Mid Glamorgan	—	sustained	375 m	64 m	17.2%	≈caveated28.4%	Good
Falstone to White Side	near Falstone · Northumberland	—	sustained	923 m	57 m	6.2%	20.2%	High
Farleigh Hungerford to Lower Westwood^°	near Farleigh Hungerford · Somerset	—	stepped	1616 m	36 m	2.2%	22.5%	High
Farm Road	near Edgeworth · Gloucestershire	—	stepped	1214 m	92 m	7.6%	22.3%	Good
Feetham to Cringley Hill^°	near Feetham · North Yorkshire	—	stepped	2884 m	162 m	5.6%	≈caveated21.0%	Good
Feetham to Low Row^°	near Feetham · North Yorkshire	—	sustained	1367 m	119 m	8.7%	24.0%	High
Felindre to Cwm Hyfryd^°	near Felindre · Dyfed	—	sustained	5214 m	262 m	5.0%	≈caveated17.6%	Good
Felindre to Pen y Garn^°	near Felindre · Powys	—	stepped	2165 m	167 m	7.7%	20.8%	Good
Fellgate Lane	near Dowbiggin · Cumbria	—	sustained	1073 m	83 m	7.7%	20.8%	Needs confirmation
Ffordd Bryn Fran	near Eglwysbach · Clwyd	—	sustained	2943 m	292 m	9.9%	≈caveated28.1%	Good
Ffordd Eisteddfod	near Gwynfryn · Clwyd	—	sustained	1262 m	56 m	4.4%	22.1%	Good
Ffordd Gerlan	near Bethesda · Gwynedd	—	sustained	608 m	61 m	10.0%	22.1%	Good
Ffordd Llwyn Du	near Eglwysbach · Clwyd	—	sustained	1494 m	182 m	12.2%	28.3%	Good
Ffordd Pen Llech	near Harlech · Gwynedd	Guinness⁷, Wikipedia³, 100 Climbs², BikeRadar 7⁸	sustained	237 m	41 m	17.2%	≈caveated32.6%	Good
Ffordd Rhiwlas	near Eglwysbach · Clwyd	—	stepped	2601 m	159 m	6.1%	≈caveated26.5%	Good
Ffordd y Graig	near Pontardawe · West Glamorgan	—	sustained	1632 m	173 m	10.6%	≈caveated26.2%	Good
Ffordd-las to Hay Bluff^°	near Ffordd-las · Powys	—	sustained	6920 m	294 m	4.3%	≈caveated31.9%	Good
Ffordd-las to Tregoyd^°	near Ffordd-las · Powys	—	sustained	2018 m	62 m	3.1%	20.5%	Good
Fforest Road	near Mountain Ash · Mid Glamorgan	—	sustained	925 m	115 m	12.5%	≈caveated26.8%	Good
Filford Lane	near Filford · Dorset	—	sustained	1652 m	99 m	6.0%	20.3%	Good
Finch Lane	near Appley Bridge · Lancashire	—	stepped	611 m	23 m	3.8%	25.4%	High
Finwick's Knowe to Dobbingstone Hill^°	near Falfarrocher Glen · South Ayrshire	—	sustained	2830 m	170 m	6.0%	≈caveated18.5%	Needs confirmation
Fish-in-the-Well Rock to Signalhouse Point^°	near Fish-in-the-Well Rock · Devon	—	sustained	409 m	54 m	13.3%	21.2%	High
Flan Hill to Knottallow Hill^°	near Ulverston · Cumbria	—	sustained	2047 m	167 m	8.2%	21.9%	High
Flash to Oliver Hill^°	near Flash · Staffordshire	—	stepped	1042 m	57 m	5.5%	23.0%	High
Fleet Moss	near Gayle · North Yorkshire	100 Climbs²	stepped	4869 m	301 m	6.2%	21.9%	High
Flint Lane	near Lenham · Kent	—	stepped	2114 m	58 m	2.8%	20.0%	Needs confirmation
Florence Hill	near Callington · Cornwall	—	stepped	727 m	62 m	8.5%	21.9%	High
Ford Hill	near Woodland Head · Devon	—	stepped	1553 m	89 m	5.7%	26.1%	High
Ford Hill	near Thorverton · Devon	—	sustained	2165 m	151 m	7.0%	25.1%	High
Ford Hill to Berry Down^°	near East Down · Devon	—	stepped	2817 m	110 m	3.9%	21.3%	Good
Ford Hill to East Down^°	near East Down · Devon	—	sustained	740 m	69 m	9.3%	21.3%	Needs confirmation
Ford Street	near Wellington · Somerset	—	stepped	3299 m	201 m	6.1%	22.1%	Good
Forda to North Brentor^°	near Chillaton · Devon	—	stepped	3139 m	116 m	3.7%	22.8%	Needs confirmation
Forder to Throwleigh^°	near Throwleigh · Devon	—	stepped	1596 m	59 m	3.7%	22.8%	Needs confirmation
Forefield Rise	near Bath · Somerset	—	sustained	323 m	43 m	13.3%	22.7%	High
Forge Hill	near Lower Lydbrook · Gloucestershire	—	sustained	1767 m	141 m	8.0%	21.6%	Needs confirmation
Forge Lane	near Much Birch · Herefordshire	—	sustained	1295 m	72 m	5.6%	22.4%	High
Forra Bury Hill	near Boscastle · Cornwall	—	sustained	1030 m	81 m	7.9%	23.8%	High
Forty Acre Lane	near Hesketh Lane · Lancashire	—	sustained	2388 m	177 m	7.4%	20.5%	High
Foulstone Road	near Pears House Clough	—	sustained	729 m	76 m	10.4%	22.0%	High
Foxhole Lane	near Gorran Haven · Cornwall	—	sustained	489 m	66 m	13.5%	26.0%	High
Foxholes Lane	near Tansley · Derbyshire	—	stepped	1822 m	105 m	5.7%	21.5%	High
Freda Avenue	near Gedling · Nottinghamshire	—	stepped	433 m	42 m	9.6%	26.7%	High
Fricker's Lane	near Ridge · Wiltshire	—	sustained	714 m	42 m	5.8%	23.1%	Good
Frogmarsh Lane	near St Chloe · Gloucestershire	—	sustained	564 m	45 m	8.0%	25.1%	High
Fursdon Lane	near Furshamdown Bottom · Devon	—	stepped	1284 m	72 m	5.6%	≈caveated21.9%	Good
Furzeleigh Lane	near Bovey Tracey · Devon	—	stepped	3108 m	213 m	6.9%	22.4%	Good
Game Scar Lane	near Goose Eye	—	sustained	2066 m	161 m	7.8%	20.4%	Good
Ganton Hill	near Ganton · North Yorkshire	—	sustained	1415 m	122 m	8.6%	23.7%	High
Garreg Side	near Pontycymer · Mid Glamorgan	—	sustained	385 m	46 m	12.0%	23.6%	Good
Garth Point to Hen Bentref Llandegfan^°	near Hen Bentref Llandegfan · Gwynedd	—	sustained	536 m	60 m	11.3%	≈caveated23.8%	Good
Garth to Cwmsymlog^°	near Penrhyn-coch · Dyfed	—	sustained	4880 m	273 m	5.6%	18.5%	Needs confirmation
Gartymore to Creag Marail^°	near West Helmsdale · Highland	—	sustained	2160 m	178 m	8.2%	20.6%	Good
Garvald to Redstone Rig^°	near Garvald · East Lothian	—	sustained	12978 m	293 m	2.3%	≈caveated19.8%	Needs confirmation
Gas Hill	near Norwich · Norfolk	—	sustained	356 m	40 m	11.4%	≈caveated22.7%	Good
Gateside Road	near Borestone · Stirling	—	sustained	5664 m	208 m	3.7%	≈caveated18.3%	Good
Gay's Hill	near Bath · Somerset	—	sustained	457 m	58 m	12.6%	20.1%	High
Georges Delight	near Llangwm · Gwent	—	stepped	2215 m	162 m	7.3%	≈caveated26.4%	Good
Gibb Hill	near Lutton · Devon	—	sustained	373 m	44 m	11.7%	≈caveated19.4%	Needs confirmation
Gidleigh to Scorhill Tor^°	near Chagford · Devon	—	sustained	2065 m	174 m	8.4%	24.4%	Good
Gifford to Newlands Hill^°	near Gifford · East Lothian	sign: 17% (2025)	sustained	7483 m	277 m	3.7%	≈caveated21.1%	Needs confirmation
Gilboa	near Trecceln · Gwent	—	sustained	342 m	34 m	10.0%	20.0%	Good
Gissage Hill	near Zeal Monachorum · Devon	—	sustained	551 m	59 m	10.7%	22.2%	High
Gittisham to Westgate Hill^°	near Gittisham · Devon	—	sustained	1311 m	110 m	8.4%	≈caveated20.3%	Good
Gladestry to Hengoed^°	near Gladestry · Powys	—	stepped	1821 m	100 m	5.5%	≈caveated26.5%	Needs confirmation
Glamorgan Street	near Penrhiwceiber · Mid Glamorgan	—	sustained	1148 m	113 m	9.8%	21.7%	High
Glancynon Street	near Mountain Ash · Mid Glamorgan	—	sustained	398 m	53 m	13.4%	20.6%	High
Glen View Street	near Trealaw · Mid Glamorgan	—	sustained	347 m	47 m	13.6%	26.1%	Good
Glyndyfrdwy to Moel Morfydd^°	near Glyndyfrdwy · Clwyd	—	stepped	3629 m	279 m	7.7%	25.5%	Good
Glynmarch Street	near Deri · Gwent	—	sustained	465 m	39 m	8.3%	20.3%	Good
Goblin Hill	near Coleford · Devon	—	sustained	300 m	32 m	10.6%	20.1%	Good
Godson Lane	near Napton on the Hill · Warwickshire	—	sustained	402 m	31 m	7.8%	20.9%	Good
Golden Grove	near Ruswarp · North Yorkshire	—	sustained	268 m	28 m	10.5%	21.6%	Good
Good Neighbours Lane	near Monmouth · Gwent	—	sustained	658 m	68 m	10.4%	20.9%	High
Goodshelter to Rickham^°	near Salcombe · Devon	—	sustained	1551 m	132 m	8.5%	≈caveated26.5%	Good
Goose Nest Lane	near Sowerby Bridge	—	sustained	1482 m	150 m	10.1%	24.3%	Good
Goveton to Cole's Cross^°	near Goveton · Devon	—	stepped	2576 m	119 m	4.6%	≈caveated23.6%	Needs confirmation
Govilon to Gilwern Hill^°	near Govilon · Gwent	—	sustained	1788 m	187 m	10.5%	≈caveated22.2%	Good
Great Fryup Dale to Glaisdale Rigg^°	near Great Fryup Dale · North Yorkshire	—	stepped	2318 m	185 m	8.0%	24.5%	High
Great Witley to Abberley Hill	near Great Witley · Worcestershire	—	sustained	309 m	51 m	16.6%	29.3%	High
Green Lane	near Slack	—	sustained	448 m	66 m	14.6%	≈caveated20.8%	Good
Greenfield Place	near Blaenavon · Gwent	—	sustained	600 m	48 m	7.9%	22.3%	High
Greenway Hill to Week Bottom^°	near Great Torrington · Devon	—	stepped	2450 m	98 m	4.0%	20.2%	Good
Grey Grass Dingle to Middleton Hill^°	near Grey Grass Dingle · Shropshire	—	sustained	1573 m	79 m	5.0%	≈caveated21.4%	Needs confirmation
Greystones Road	near Luddenden Foot	—	sustained	1765 m	183 m	10.3%	21.3%	Needs confirmation
Grisedale Road	near Grisedale · Cumbria	—	sustained	1015 m	71 m	7.0%	22.3%	High
Guildford Lane	near Albury · Surrey	—	sustained	1244 m	51 m	4.1%	≈caveated26.5%	Good
Gully to Pen y Ffynnon^°	near Gully · Powys	—	stepped	1677 m	125 m	7.5%	27.5%	High
Gunnislake to Gulworthy^°	near Gunnislake · Cornwall	—	sustained	1503 m	160 m	10.6%	≈caveated18.7%	Needs confirmation
Gunridge	near Clunton · Shropshire	—	stepped	2960 m	150 m	5.1%	21.0%	Good
Gwaelodygarth Road	near Merthyr Tydfil · Mid Glamorgan	—	sustained	1356 m	86 m	6.3%	21.0%	Good
Gwenddwr to Crickadarn	near Gwenddwr · Powys	—	sustained	1789 m	126 m	7.0%	22.2%	High
Gwyddelwern to Betws Gwerful Goch^°	near Gwyddelwern · Clwyd	—	sustained	3132 m	164 m	5.3%	≈caveated26.2%	Good
Gydynap Lane	near Theescombe · Gloucestershire	—	sustained	452 m	89 m	19.7%	≈caveated28.0%	Needs confirmation
Hacked Way Lane	near Walker Barn · Cheshire	—	sustained	803 m	105 m	13.0%	24.1%	High
Hackney	near Corscombe · Dorset	—	stepped	1672 m	124 m	7.4%	22.2%	Good
Hafod Lane	near Hopkinstown · Mid Glamorgan	—	sustained	2898 m	130 m	4.5%	≈caveated27.3%	Good
Hafod-fan Road	near Abertyleri · Gwent	—	sustained	181 m	31 m	17.0%	20.4%	High
Hale Lane	near Wendover · Buckinghamshire	—	sustained	777 m	68 m	8.7%	24.9%	High
Hall Carr Road	near Rawtenstall · Lancashire	—	sustained	1067 m	129 m	12.1%	≈caveated24.0%	Good
Hall Hill	near Brendon · Devon	—	sustained	1779 m	130 m	7.3%	≈caveated20.2%	Needs confirmation
Hall Ing Road	near Honley	—	sustained	1921 m	143 m	7.5%	21.0%	Good
Halswell Street	near Tyntetown · Mid Glamorgan	—	sustained	163 m	21 m	12.7%	20.7%	High
Hammetts Lane	near Rumsam · Devon	—	sustained	481 m	52 m	10.8%	≈caveated26.3%	Needs confirmation
Hand Bank Lane	near Mirfield	—	sustained	477 m	56 m	11.7%	23.0%	High
Hand Carr Lane	near Luddenden Foot	—	sustained	982 m	97 m	9.9%	27.6%	Needs confirmation
Hangman's Hill	near Oakford · Devon	—	stepped	1532 m	101 m	6.6%	≈caveated27.0%	Good
Hangman's Hill to Pope's Hill^°	near Pope's Hill · Gloucestershire	—	stepped	695 m	57 m	8.2%	21.5%	Good
Harberton to Belsford^°	near Harberton · Devon	—	sustained	847 m	73 m	8.6%	≈caveated21.5%	Good
Hard Hill to Bigert^°	near Ulpha · Cumbria	—	sustained	1340 m	150 m	11.2%	23.5%	High
Hardknott Pass	near Eskdale · Cumbria	100 Climbs², Wikipedia³, BikeRadar 7⁸	sustained	3119 m	315 m	10.1%	25.9%	Good
Hardknott Pass (west)	near Cockley Beck · Cumbria	—	sustained	911 m	50 m	5.5%	28.2%	Good
Hardraw to Pike Hill^°	near Hardraw · North Yorkshire	—	sustained	3544 m	224 m	6.3%	20.4%	High
Harford to Hutcherton Down^°	near Landkey · Devon	—	stepped	3839 m	172 m	4.5%	20.1%	Needs confirmation
Harper's Lane	near Roadwater · Somerset	—	sustained	642 m	85 m	13.2%	≈caveated30.7%	Good
Hart Hill	near Charing · Kent	—	stepped	1024 m	56 m	5.4%	22.4%	High
Hartside	near Melmerby · Cumbria	100 Climbs²	sustained	7759 m	400 m	5.2%	9.2%	Good
Harwood Farm Lane	near Langley Marsh · Somerset	—	sustained	1706 m	127 m	7.4%	26.5%	High
Hatch to Churchstow^°	near Hatch · Devon	—	sustained	1281 m	103 m	8.0%	≈caveated22.3%	Needs confirmation
Haw Hill to Potherilt Hill^°	near Broughton in Furness · Cumbria	—	sustained	823 m	123 m	14.9%	≈caveated25.0%	Good
Haw Hill to The Knott^°	near Broughton in Furness · Cumbria	—	sustained	5736 m	236 m	4.1%	21.1%	High
Hawkley Road	near West Liss · Hampshire	—	stepped	1535 m	68 m	4.4%	≈caveated18.1%	Needs confirmation
Hawthorn Road	near Slaithwaite	—	sustained	792 m	85 m	10.8%	23.7%	Needs confirmation
Hawthorns Road	near Pontshill Marsh · Herefordshire	—	sustained	3254 m	141 m	4.3%	≈caveated21.2%	Good
Hay on Wye to Mynydd Brith^°	near Y Gelli Gandryll · Powys	—	sustained	6042 m	332 m	5.5%	20.8%	High
Hayne Lane	near Bolham · Devon	—	sustained	1414 m	78 m	5.5%	20.2%	High
Hayne Lane	near Wilmington · Devon	—	sustained	1309 m	143 m	11.0%	≈caveated25.2%	Good
Hearn Lane	near North Barrow · Somerset	—	stepped	1691 m	65 m	3.9%	20.2%	Good
Heartsease to Wern Dingle^°	near Heartsease · Powys	—	sustained	3120 m	157 m	5.0%	20.2%	High
Hebden Road	near Hebden · North Yorkshire	—	stepped	1054 m	73 m	6.9%	≈caveated28.4%	Needs confirmation
Heddon Banks	near Heddon-on-the-Wall · Northumberland	—	sustained	1431 m	92 m	6.4%	≈caveated20.5%	Good
Height Lane	near Oxenhope	—	stepped	1160 m	54 m	4.6%	20.2%	High
Hellwell Lane	near Kentmere · Cumbria	—	sustained	628 m	72 m	11.5%	22.9%	Good
Hen Ffordd	near Bwlch · Powys	—	sustained	844 m	88 m	10.5%	≈caveated26.4%	Good
Hendre Owen Road	near Duffryn · West Glamorgan	—	sustained	309 m	46 m	15.0%	23.1%	High
Henllys to Nant Carn^°	near Ty Canol · Gwent	—	sustained	1553 m	187 m	12.1%	≈caveated25.4%	Good
Heol Calch	near Cwm Gored · Powys	—	stepped	925 m	86 m	9.3%	≈caveated26.0%	Good
Heol Callwen	near Glyntawe · Powys	—	stepped	492 m	29 m	5.9%	22.0%	Good
Heol Feurig	near Dolgellau · Gwynedd	—	stepped	284 m	33 m	11.5%	≈caveated30.0%	Good
Heol Lan	near Trecastle · Powys	—	stepped	2788 m	142 m	5.1%	≈caveated26.3%	Good
Heol Lan	near Cwm Nantypistyll · Powys	—	sustained	6224 m	252 m	4.0%	23.1%	Good
Heol y Banc	near Pontyberem · Dyfed	—	sustained	1670 m	164 m	9.8%	21.9%	High
Heol-y-Beiliau	near Llantrisant · Mid Glamorgan	—	sustained	290 m	54 m	18.5%	≈caveated25.0%	Good
Herodsfoot to St Keyne^°	near Herodsfoot · Cornwall	—	stepped	2106 m	113 m	5.3%	26.3%	High
Herodsfoot to St Keyne^°	near Herodsfoot · Cornwall	—	stepped	1959 m	110 m	5.6%	≈caveated23.2%	Good
Heron Hill Lane	near South Street · Kent	—	stepped	1088 m	41 m	3.8%	20.9%	Good
Hessenford to Trelowia^°	near Hessenford · Cornwall	—	sustained	1166 m	103 m	8.9%	≈caveated16.5%	Good
Hey Lane	near Banquet House Clough	—	sustained	2478 m	195 m	7.9%	30.6%	Good
High Hill Lane	near Settle · North Yorkshire	—	sustained	812 m	116 m	14.3%	20.4%	High
High Meadow to Hafodyrynys^°	near Abercarn · Gwent	—	stepped	4325 m	266 m	6.1%	≈caveated24.0%	Good
Higham Lane	near Gee Cross	—	sustained	1281 m	83 m	6.5%	21.0%	Good
Higher Ashton to Beardon Hill^°	near Higher Ashton · Devon	—	sustained	1336 m	84 m	6.3%	≈caveated27.3%	Good
Higher Ashton to Dunchideock^°	near Higher Ashton · Devon	—	sustained	2606 m	174 m	6.7%	21.8%	Needs confirmation
Higher Buckeridge Road	near Teignmouth · Devon	—	sustained	1526 m	163 m	10.7%	23.2%	High
Higher Dinting	near Glossop · Derbyshire	—	sustained	197 m	24 m	12.2%	20.0%	High
Higher Park	near Shaw	—	sustained	325 m	45 m	13.7%	22.8%	High
Higher Slade Road	near Ilfracombe · Devon	—	sustained	947 m	76 m	8.0%	21.4%	High
Higher Woodway Road	near Teignmouth · Devon	—	sustained	1394 m	129 m	9.2%	22.1%	High
Hill Lane	near Rodney Stoke · Somerset	—	sustained	762 m	116 m	15.2%	26.1%	Good
Hill Lane	near Old Sodbury · Gloucestershire	—	sustained	395 m	42 m	10.5%	≈caveated23.8%	Good
Hill Road	near Broughty Ferry · Dundee City	—	sustained	519 m	50 m	9.7%	20.1%	Good
Hill Road	near Pontlottyn · Gwent	—	stepped	1187 m	114 m	9.6%	21.6%	High
Hill Street	near Deri · Gwent	—	sustained	1697 m	146 m	8.6%	27.9%	High
Hill Terrace	near Abergwaun · Dyfed	—	sustained	589 m	58 m	9.8%	15.0%	High
Hill's Lane	near Cotleigh · Devon	—	stepped	1102 m	66 m	6.0%	26.3%	Good
Hillpark Road	near Wormit · Fife	—	stepped	293 m	28 m	9.6%	20.5%	High
Hillside	near Swffryd · Gwent	—	sustained	729 m	89 m	12.2%	≈caveated20.2%	Good
Hillside Road	near Lower Redbrook · Gloucestershire	—	sustained	326 m	37 m	11.3%	21.8%	Good
Hilltop to Easthope^°	near Easthope · Shropshire	—	sustained	899 m	103 m	11.5%	≈caveated24.9%	Good
Hines Hill to East Prawle^°	near East Prawle · Devon	—	stepped	426 m	33 m	7.7%	≈caveated22.6%	Needs confirmation
Hobbs Lane	near Longhope · Gloucestershire	—	sustained	453 m	50 m	11.0%	20.2%	Good
Hodshill	near Midford · Somerset	—	sustained	1854 m	118 m	6.4%	≈caveated26.9%	Good
Hogg Lane	near North Grimston · North Yorkshire	—	stepped	446 m	35 m	7.9%	20.2%	Needs confirmation
Holbrook	near Central Lydbrook · Gloucestershire	—	sustained	1361 m	121 m	8.9%	21.0%	Good
Holcombe Down Road	near Dawlish · Devon	—	sustained	2776 m	182 m	6.6%	23.8%	High
Holden Lane	near Silsden	—	stepped	2222 m	160 m	7.2%	20.2%	Good
Holdscroft Lane	near Fishpond Bottom · Dorset	—	sustained	1188 m	109 m	9.2%	22.8%	Good
Hollam Lane	near Dulverton · Somerset	—	sustained	1190 m	128 m	10.7%	≈caveated21.7%	Good
Hollies Hill	near Nailsworth · Gloucestershire	—	sustained	524 m	55 m	10.4%	20.2%	High
Hollins	near Wensley · North Yorkshire	—	sustained	1560 m	117 m	7.5%	20.2%	High
Hollinsclough Rake	near Hollinsclough · Staffordshire	—	stepped	1749 m	117 m	6.7%	21.0%	High
Hollow Combe to Ember Combe^°	near Hollow Combe · Somerset	—	sustained	4133 m	279 m	6.7%	17.5%	High
Holly Lane	near Ambergate · Derbyshire	National HC¹	stepped	1992 m	125 m	6.3%	≈caveated22.9%	Good
Holme House Lane	near Goose Eye	—	sustained	1371 m	84 m	6.1%	≈caveated14.9%	Good
Holme Lane	near Slaithwaite	—	sustained	1987 m	160 m	8.1%	24.8%	High
Holme Moss	near Holme	National HC¹, 100 Climbs²	sustained	2301 m	210 m	9.1%	13.3%	High
Holmfirth Road	near Waterside	—	sustained	5504 m	318 m	5.8%	8.7%	High
Holne Turn to Wellsfoot Island^°	near Holne Turn · Devon	—	sustained	1564 m	109 m	6.9%	≈caveated21.1%	Good
Holroyd Mill Lane	near Micklethwaite	—	sustained	408 m	44 m	10.8%	22.5%	High
Honister Pass	near Seatoller · Cumbria	—	sustained	2188 m	229 m	10.4%	24.5%	High
Honiton to Carpenter's Hill	near Honiton · Devon	—	stepped	2410 m	178 m	7.4%	24.9%	Good
Hoo Meavy to Clearbrook^°	near Hoo Meavy · Devon	—	stepped	1334 m	67 m	5.1%	26.4%	High
Hooke to Rampisham Hill^°	near Hooke · Dorset	—	stepped	1446 m	73 m	5.1%	22.0%	High
Hookway Hill	near Oareford · Somerset	—	stepped	1765 m	139 m	7.9%	≈caveated28.4%	Good
Horderley to Woolston^°	near Horderley · Shropshire	—	sustained	1130 m	108 m	9.6%	24.8%	High
Horn Lane	near New Mill	—	sustained	2806 m	190 m	6.8%	20.3%	Good
Horner's Green to Castling's Heath^°	near Groton · Suffolk	—	stepped	1792 m	29 m	1.6%	22.0%	High
Horsebridge to Milton Abbot^°	near Horsebridge · Devon	—	sustained	2302 m	135 m	5.9%	20.4%	High
Horsehold Lane	near Hebden Bridge	—	sustained	1809 m	175 m	9.7%	26.7%	Good
Horseshoe Pass	near Llidiart Annie · Clwyd	Nat HC 1971¹, National HC¹, Wikipedia³, 100 Climbs²	sustained	4543 m	276 m	6.1%	≈caveated14.4%	Good
Horslea	near Joy's Green · Gloucestershire	—	sustained	1767 m	131 m	7.4%	19.7%	Needs confirmation
Hosticle Lane	near Whittington · Lancashire	—	sustained	1581 m	56 m	3.6%	20.1%	Needs confirmation
Hostle Park Road	near Ilfracombe · Devon	—	sustained	298 m	42 m	14.2%	20.2%	High
Hoxton Road	near Torquay · Devon	—	sustained	448 m	45 m	10.0%	20.3%	High
Hudson Lane	near Ruspidge · Gloucestershire	—	sustained	438 m	47 m	10.8%	20.6%	High
Huff Clough to Crutchenber Fell^°	near Huff Clough · Lancashire	—	stepped	2224 m	162 m	7.3%	20.1%	Good
Hunton Hill	near Hunton · Kent	—	stepped	1331 m	93 m	7.0%	≈caveated28.3%	Good
Huntshaw to Woodtown^°	near Huntshaw · Devon	—	sustained	2112 m	99 m	4.7%	23.6%	Needs confirmation
Hyner Bottom to Hennock^°	near Teign Village · Devon	—	sustained	1262 m	142 m	11.2%	23.4%	High
Ibberton to Ibberton Hill^°	near Ibberton · Dorset	—	stepped	2130 m	147 m	6.9%	≈caveated26.0%	Good
Icknield Street	near Weatheroak Hill · Worcestershire	—	stepped	1330 m	57 m	4.3%	≈caveated21.3%	Good
Ilkley Road	near West Morton	—	sustained	1756 m	132 m	7.5%	21.4%	High
Inchbrook Hill	near Nailsworth · Gloucestershire	—	sustained	409 m	58 m	14.1%	21.1%	Good
Ings to High Knott^°	near Ings · Cumbria	—	sustained	1046 m	97 m	9.3%	21.4%	High
Intake Lane	near Brookroyd	—	sustained	804 m	59 m	7.3%	14.1%	High
Intake Lane	near Frosterley · County Durham	—	sustained	1760 m	216 m	12.3%	20.3%	High
Irene Street	near Miskin · Mid Glamorgan	—	stepped	734 m	70 m	9.5%	21.6%	High
Ivegate	near Colne · Lancashire	—	sustained	205 m	27 m	13.4%	20.9%	High
Jack Hill	near Allithwaite · Cumbria	—	sustained	390 m	42 m	10.8%	21.6%	High
Jingle Pot Road	near Grinton · North Yorkshire	—	sustained	1401 m	142 m	10.2%	23.1%	High
Jinkin Avenue	near Lipson · Devon	—	sustained	290 m	33 m	11.2%	20.0%	Needs confirmation
Jinny Lane	near Roughlee · Lancashire	—	stepped	1715 m	114 m	6.7%	21.4%	High
John Street	near Heyrod	—	sustained	580 m	48 m	8.3%	27.2%	High
Jubilee Road	near Newton Abbot · Devon	—	sustained	237 m	30 m	12.5%	22.8%	High
Jubilee Tower^°	near Quernmore · Lancashire	100 Climbs²	sustained	1726 m	134 m	7.8%	15.6%	High
Jumble Hole Road	near Charlestown	—	sustained	791 m	70 m	8.9%	≈caveated24.6%	Needs confirmation
Kellaton to Bickerton^°	near Kellaton · Devon	—	sustained	760 m	86 m	11.3%	21.2%	High
Kellow Hill	near Polperro · Cornwall	—	stepped	1583 m	109 m	6.9%	22.9%	Needs confirmation
Kent Hatch Road	near Crockham Hill · Kent	—	stepped	1287 m	75 m	5.8%	≈caveated21.0%	Good
Kershaw Road	near Walsden	—	sustained	201 m	26 m	13.1%	22.7%	High
Kerswell to North Hill^°	near Kerswell · Devon	—	stepped	3306 m	143 m	4.3%	25.5%	Needs confirmation
Kestle to Manaccan^°	near Kestle · Cornwall	—	stepped	1298 m	49 m	3.8%	21.8%	Needs confirmation
Kilkenny Lane	near Padley Bottom · Somerset	—	stinger	1288 m	41 m	3.1%	21.4%	High
Killicks Hill	near Fortuneswell · Dorset	—	sustained	435 m	45 m	10.2%	20.6%	High
Kiln Lane	near Stokenham · Devon	—	sustained	903 m	65 m	7.2%	21.0%	High
Kinders Lane	near Boarshurst	—	sustained	586 m	57 m	9.7%	21.4%	High
King's Hill	near Ystrad Mynach · Gwent	—	stepped	1033 m	78 m	7.6%	20.4%	Good
Kingscott to High Bullen^°	near Kingscott · Devon	—	stepped	3137 m	129 m	4.1%	≈caveated20.6%	Good
Kirkstone Pass	near Caudale · Cumbria	—	sustained	3458 m	265 m	7.7%	≈caveated17.7%	Good
Knarr Lane	near Wall Hill	—	stepped	596 m	52 m	8.8%	22.7%	High
Knoll Hill to Shallow Dale^°	near Ampleforth · North Yorkshire	—	stepped	2249 m	147 m	6.5%	≈caveated24.7%	Good
Knott Hill Lane	near Delph	—	sustained	1134 m	115 m	10.1%	≈caveated19.2%	Needs confirmation
Lamledra Hill	near Gorran Haven · Cornwall	—	sustained	533 m	59 m	11.0%	≈caveated24.7%	Good
Lamplands Lane	near Grosmont · North Yorkshire	—	sustained	2464 m	157 m	6.4%	22.0%	High
Lamps Moss	near Nateby · Cumbria	100 Climbs²	sustained	4269 m	309 m	7.2%	20.0%	High
Landkey Town to Whiddon^°	near Landkey Town · Devon	—	sustained	820 m	73 m	8.9%	≈caveated19.7%	Good
Lane And Dowry Road	near Slaithwaite	—	sustained	2347 m	157 m	6.7%	22.6%	High
Lane Ends Lane	near Hebden Bridge	—	sustained	1666 m	148 m	8.9%	20.1%	High
Lane near Abercych^°	near Abercych · Dyfed	—	stepped	684 m	73 m	10.6%	≈caveated26.3%	Good
Lane near Aberfan^°	near Aberfan · Mid Glamorgan	—	stepped	640 m	57 m	8.9%	≈caveated22.1%	Good
Lane near Allaleigh^°	near Allaleigh · Devon	—	sustained	2311 m	139 m	6.0%	22.8%	Needs confirmation
Lane near Almondbury Common^°	near Almondbury Common	—	stepped	286 m	23 m	8.1%	20.0%	Good
Lane near Archenfield	near Y Gelli Gandryll · Powys	—	stepped	3260 m	189 m	5.8%	27.6%	High
Lane near Ashford^°	near Ashford · Devon	—	stepped	608 m	52 m	8.5%	20.8%	High
Lane near Bargod	near Bargod · Gwent	—	stepped	287 m	34 m	11.9%	25.0%	Good
Lane near Baysdale^°	near Baysdale · North Yorkshire	—	sustained	428 m	56 m	13.0%	21.5%	High
Lane near Belingick Hill^°	near Burlawn · Cornwall	—	sustained	3563 m	121 m	3.4%	22.9%	Needs confirmation
Lane near Berry Down^°	near Berry Down · Cornwall	—	sustained	1526 m	77 m	5.1%	26.1%	High
Lane near Betws-y-coed	near Betws-y-Coed · Clwyd	tag: 20% (2026)	sustained	1263 m	162 m	12.8%	≈caveated21.6%	Good
Lane near Bickham^°	near Bickham · Devon	—	stepped	2179 m	104 m	4.8%	22.9%	High
Lane near Bickleigh Vale^°	near Bickleigh · Devon	—	sustained	904 m	88 m	9.7%	22.4%	Needs confirmation
Lane near Blackawton	near Blackawton · Devon	—	stepped	1980 m	46 m	2.3%	21.9%	Good
Lane near Blackdown Hill^°	near Brownston · Devon	—	stepped	1795 m	55 m	3.1%	25.6%	Good
Lane near Blaen-y-Glyn	near Bannau Brycheiniog · Powys	tag: 20% (2026)	sustained	1515 m	180 m	11.8%	≈caveated19.7%	Good
Lane near Blaengarw^°	near Pontycymer · Mid Glamorgan	—	sustained	157 m	24 m	15.3%	≈caveated22.8%	Good
Lane near Blaenllechau^°	near Ferndale · Mid Glamorgan	—	stepped	452 m	30 m	6.6%	≈caveated28.8%	Needs confirmation
Lane near Bodinnick^°	near Fowey · Cornwall	—	stepped	993 m	74 m	7.5%	22.2%	Needs confirmation
Lane near Boscastle^°	near Boscastle · Cornwall	—	sustained	1599 m	143 m	8.9%	≈caveated19.4%	Needs confirmation
Lane near Bransdale^°	near Bransdale · North Yorkshire	—	sustained	848 m	65 m	7.7%	20.3%	High
Lane near Bridford^°	near Bridford · Devon	—	stepped	2263 m	62 m	2.8%	20.6%	Good
Lane near Bridford^°	near Bridford · Devon	—	sustained	2904 m	116 m	4.0%	20.6%	Good
Lane near Buckfast^°	near Buckfastleigh · Devon	—	sustained	580 m	36 m	6.3%	21.6%	High
Lane near Buckland^°	near Buckland · Devon	—	sustained	731 m	90 m	12.3%	28.3%	Needs confirmation
Lane near Buckland Monachorum^°	near Buckland Monachorum · Devon	—	sustained	960 m	96 m	10.0%	≈caveated27.0%	Good
Lane near Bucknell^°	near Bucknell · Shropshire	—	stepped	1041 m	75 m	7.2%	24.3%	Good
Lane near Butterdon Hill^°	near Dunsford · Devon	—	stepped	3440 m	228 m	6.6%	21.5%	Good
Lane near Calderside^°	near Hebden Bridge	—	sustained	431 m	41 m	9.5%	21.0%	Good
Lane near Carkeel^°	near Carkeel · Cornwall	—	sustained	328 m	36 m	10.9%	20.1%	Good
Lane near Carnach^°	near Carnach · Na h-Eileanan an Iar	—	stepped	529 m	32 m	6.0%	27.0%	Needs confirmation
Lane near Ceunant^°	near Ceunant · Powys	—	sustained	991 m	86 m	8.7%	≈caveated26.4%	Good
Lane near Challaborough^°	near Challaborough · Devon	—	sustained	960 m	46 m	4.8%	20.8%	Needs confirmation
Lane near Chapel Hill^°	near Braunton · Devon	—	stepped	373 m	32 m	8.5%	20.7%	Needs confirmation
Lane near Chulmleigh^°	near Chulmleigh · Devon	—	stepped	667 m	55 m	8.3%	≈caveated27.1%	Needs confirmation
Lane near Churchbridge^°	near Churchbridge · Cornwall	—	sustained	1119 m	112 m	10.0%	≈caveated21.2%	Good
Lane near Churchtown^°	near Churchtown · Cornwall	—	stepped	2385 m	125 m	5.3%	≈caveated20.5%	Good
Lane near Clee St Margaret^°	near Clee St Margaret · Shropshire	—	sustained	1066 m	99 m	9.3%	≈caveated23.2%	Good
Lane near Cockayne^°	near Cockayne · North Yorkshire	—	sustained	276 m	36 m	13.2%	≈caveated21.0%	Good
Lane near Cole's Cross^°	near Cole's Cross · Devon	—	stepped	1221 m	64 m	5.3%	20.5%	Good
Lane near Colton^°	near Spark Bridge · Cumbria	—	sustained	685 m	58 m	8.5%	21.7%	Needs confirmation
Lane near Combe^°	near Salcombe · Devon	—	stepped	1141 m	64 m	5.6%	26.2%	Needs confirmation
Lane near Coniston^°	near Coniston · Cumbria	—	sustained	150 m	26 m	17.1%	21.6%	Good
Lane near Cook's Gully^°	near Ubley · Somerset	—	sustained	935 m	70 m	7.5%	20.4%	Needs confirmation
Lane near Coombe^°	near Coombe · Devon	—	sustained	2868 m	166 m	5.8%	22.3%	High
Lane near Cotleigh^°	near Cotleigh · Devon	—	stepped	1401 m	65 m	4.6%	26.3%	Good
Lane near Coverack^°	near Coverack · Cornwall	—	sustained	532 m	31 m	5.8%	20.5%	Needs confirmation
Lane near Crai^°	near Crai · Powys	—	stepped	1072 m	53 m	5.0%	20.3%	Good
Lane near Cranham^°	near Cranham · Gloucestershire	—	sustained	1014 m	61 m	6.0%	≈caveated18.6%	Good
Lane near Creag Garten^°	near Cullachie · Highland	—	stepped	961 m	54 m	5.6%	22.0%	High
Lane near Creag nan Cudaigean^°	near Ullapool · Highland	—	stepped	476 m	44 m	9.2%	21.8%	Good
Lane near Cwm^°	near Cwm · Powys	—	sustained	2426 m	122 m	5.0%	20.6%	Good
Lane near Cwm Clydach^°	near Clydach Vale · Mid Glamorgan	—	stepped	362 m	34 m	9.4%	21.1%	High
Lane near Cwmisfael^°	near Llanddarog · Dyfed	—	sustained	1240 m	52 m	4.2%	21.7%	Good
Lane near Cwrt	near Cwrt · Gwynedd	tag: 20% (2026)	sustained	1015 m	94 m	9.2%	24.4%	High
Lane near Dean Prior^°	near Dean Prior · Devon	—	sustained	930 m	72 m	7.7%	≈caveated20.6%	Good
Lane near Diptford^°	near Diptford · Devon	—	sustained	1147 m	82 m	7.2%	20.9%	Needs confirmation
Lane near Dolanog	near Dolanog · Powys	—	sustained	727 m	69 m	9.5%	≈caveated20.3%	Good
Lane near Dolgarrog^°	near Dolgarrog · Clwyd	BikeRadar 7⁸	sustained	666 m	149 m	22.4%	≈caveated36.6%	Good
Lane near Dolgellau^°	near Dolgellau · Gwynedd	—	sustained	234 m	35 m	15.1%	20.3%	High
Lane near Eastcombe^°	near Eastcombe · Gloucestershire	—	sustained	621 m	80 m	13.0%	≈caveated27.5%	Good
Lane near Easthope^°	near Easthope · Shropshire	—	sustained	437 m	41 m	9.3%	20.2%	High
Lane near Edge Hill^°	near Edgehill · Warwickshire	—	stepped	627 m	54 m	8.5%	22.9%	Good
Lane near Esgair Llwyn-gwyn^°	near Cwm Brithgwm · Powys	—	sustained	730 m	83 m	11.3%	20.6%	High
Lane near Exe Valley^°	near Exe Valley · Devon	—	sustained	1315 m	127 m	9.6%	21.7%	High
Lane near Exe Valley^°	near Exe Valley · Devon	—	sustained	3622 m	201 m	5.6%	22.3%	Needs confirmation
Lane near Folly Gate^°	near Folly Gate · Devon	—	stepped	1603 m	84 m	5.2%	22.4%	Needs confirmation
Lane near Foula Geo^°	near Easter Quarff · Shetland Islands	—	stepped	358 m	30 m	8.4%	20.8%	High
Lane near Fovant^°	near Fovant · Wiltshire	—	stepped	1301 m	94 m	7.2%	22.2%	High
Lane near Frogwell^°	near Callington · Cornwall	—	sustained	1076 m	52 m	4.9%	21.0%	Good
Lane near Fron^°	near Fron · Powys	—	sustained	492 m	89 m	18.1%	≈caveated29.3%	Good
Lane near Furshamdown Bottom^°	near Furshamdown Bottom · Devon	—	sustained	767 m	64 m	8.4%	20.1%	High
Lane near Fyfett^°	near Fyfett · Somerset	—	stepped	927 m	63 m	6.8%	21.9%	High
Lane near Garndolbenmaen^°	near Garndolbenmaen · Gwynedd	—	stepped	722 m	65 m	9.0%	20.6%	High
Lane near Garth Row^°	near Garth Row · Cumbria	—	sustained	912 m	68 m	7.4%	20.4%	Good
Lane near Garthbeibio^°	near Foel · Powys	—	stepped	322 m	34 m	10.6%	≈caveated23.5%	Needs confirmation
Lane near Gilfach^°	near Glan-y-nant · Gwent	—	stepped	352 m	28 m	7.8%	20.7%	High
Lane near Gilsland^°	near Gilsland · Cumbria	—	stepped	682 m	43 m	6.4%	21.5%	High
Lane near Glascoed^°	near Glascoed · Powys	—	stepped	1360 m	101 m	7.5%	25.2%	High
Lane near Glyn Ceiriog^°	near Glyn Ceiriog · Clwyd	—	stepped	522 m	60 m	11.4%	≈caveated27.2%	Good
Lane near Glyn Ceiriog^°	near Glyn Ceiriog · Clwyd	—	sustained	1051 m	87 m	8.3%	≈caveated27.2%	Needs confirmation
Lane near Glyn Saer^°	near Glyn Saer · Dyfed	—	stepped	7043 m	150 m	2.1%	11.7%	Needs confirmation
Lane near Goat Island^°	near Goat Island · Cumbria	—	stepped	1782 m	57 m	3.2%	20.1%	High
Lane near Goveton^°	near Kingsbridge · Devon	—	sustained	947 m	73 m	7.7%	22.0%	Good
Lane near Great Torrington^°	near Great Torrington · Devon	—	sustained	1336 m	61 m	4.6%	20.0%	High
Lane near Great Weeke^°	near Chagford · Devon	—	sustained	2056 m	114 m	5.5%	≈caveated25.4%	Good
Lane near Green Moor^°	near Green Moor	—	sustained	176 m	23 m	13.0%	20.4%	High
Lane near Gweek^°	near Gweek · Cornwall	—	sustained	456 m	64 m	14.1%	26.2%	Needs confirmation
Lane near Gwenter^°	near Gwenter · Cornwall	—	stepped	313 m	29 m	9.1%	22.8%	Needs confirmation
Lane near Harbourneford^°	near Harbourneford · Devon	—	sustained	1167 m	99 m	8.5%	22.3%	Needs confirmation
Lane near Harbourneford^°	near Harbourneford · Devon	—	sustained	1216 m	81 m	6.6%	23.0%	High
Lane near Hawnby^°	near Hawnby · North Yorkshire	—	stepped	5320 m	210 m	4.0%	20.8%	High
Lane near Helestone Park^°	near Helestone Park · Devon	—	sustained	2351 m	112 m	4.8%	25.2%	High
Lane near Helland^°	near Helland · Cornwall	—	sustained	1238 m	99 m	8.0%	22.3%	High
Lane near Herodsfoot^°	near Herodsfoot · Cornwall	—	sustained	1669 m	113 m	6.8%	24.8%	Good
Lane near Herodsfoot^°	near Herodsfoot · Cornwall	—	stepped	1480 m	75 m	5.0%	23.5%	High
Lane near Higher Batson^°	near Higher Batson · Devon	—	stepped	683 m	59 m	8.6%	21.6%	Good
Lane near Hillside^°	near Hillside · Angus	—	stepped	3683 m	69 m	1.9%	20.5%	Good
Lane near Hittisleigh	near Hittisleigh · Devon	—	sustained	894 m	81 m	9.1%	26.8%	Good
Lane near Holbeton^°	near Holbeton · Devon	—	sustained	1036 m	60 m	5.8%	20.6%	Needs confirmation
Lane near Horsley Hope^°	near Horsley Hope · County Durham	—	sustained	1235 m	109 m	8.8%	22.7%	Needs confirmation
Lane near Huddleston Hill^°	near Rusland Valley · Cumbria	—	sustained	850 m	59 m	6.9%	24.5%	Good
Lane near Huntshaw^°	near Huntshaw · Devon	—	stepped	773 m	45 m	5.8%	≈caveated22.5%	Good
Lane near Ivelet^°	near Ivelet · North Yorkshire	—	sustained	950 m	97 m	10.3%	20.6%	Good
Lane near Kenwyn^°	near Truro · Cornwall	—	sustained	854 m	77 m	9.0%	21.9%	Good
Lane near Kilgwrrwg Common^°	near Kilgwrrwg · Gwent	—	stepped	1472 m	117 m	7.9%	≈caveated27.5%	Good
Lane near Killington^°	near Killington · Cumbria	—	sustained	1278 m	86 m	6.7%	25.9%	Good
Lane near Kilpeck^°	near Kilpeck · Herefordshire	—	stepped	824 m	51 m	6.2%	23.8%	Good
Lane near Kings Nympton^°	near Kings Nympton · Devon	—	sustained	1529 m	91 m	5.9%	21.4%	High
Lane near Kingscott^°	near St Giles in the Wood · Devon	—	stepped	1275 m	69 m	5.4%	≈caveated21.4%	Good
Lane near Kingskerswell^°	near Kingskerswell · Devon	—	sustained	249 m	29 m	11.6%	≈caveated25.4%	Good
Lane near Kingston^°	near Kingston · Devon	—	stepped	1989 m	91 m	4.6%	≈caveated19.8%	Needs confirmation
Lane near Lanreath^°	near Lanreath · Cornwall	—	sustained	1319 m	76 m	5.8%	16.4%	Good
Lane near Lanteglos Highway^°	near Fowey · Cornwall	—	sustained	1244 m	86 m	6.9%	23.1%	Needs confirmation
Lane near Leighton	near Pentre · Powys	tag: 20% (2026)	sustained	646 m	70 m	10.9%	≈caveated22.8%	Good
Lane near Lesnewth^°	near Lesnewth · Cornwall	—	stepped	2706 m	164 m	6.1%	20.1%	High
Lane near Life Rock^°	near Life Rock · Devon	—	sustained	425 m	51 m	12.1%	21.5%	High
Lane near Little Black Hill^°	near Michaelchurch Escley · Herefordshire	—	sustained	1776 m	146 m	8.2%	24.5%	Good
Lane near Littleham^°	near Littleham · Devon	—	stepped	681 m	33 m	4.8%	≈caveated20.8%	Good
Lane near Livesey Fold^°	near Darwen · Lancashire	—	sustained	323 m	32 m	10.0%	22.7%	High
Lane near Llanarmon Mynydd Mawr	near Llanrhaeadr-ym-Mochnant · Powys	tag: 20% (2026)	sustained	762 m	85 m	11.1%	≈caveated26.8%	Good
Lane near Llanddeusant^°	near Llanddeusant · Dyfed	—	sustained	499 m	66 m	13.2%	≈caveated27.4%	Good
Lane near Llanedi	near Llanedi · Dyfed	—	sustained	925 m	63 m	6.8%	20.3%	High
Lane near Llanfair Talhaearn^°	near Llanfair Talhaiarn · Clwyd	—	sustained	1627 m	141 m	8.6%	20.4%	High
Lane near Llanfihangel-y-Creuddyn^°	near Llanfihangel-y-Creuddyn · Dyfed	—	sustained	553 m	70 m	12.6%	≈caveated21.5%	Good
Lane near Llangadfan^°	near Llangadfan · Powys	—	sustained	546 m	56 m	10.2%	≈caveated27.3%	Good
Lane near Llanglydwen^°	near Llanglydwen · Dyfed	—	sustained	1839 m	96 m	5.2%	20.3%	High
Lane near Llanveynoe^°	near Llanveynoe · Herefordshire	—	sustained	756 m	85 m	11.2%	25.9%	High
Lane near Llanybri^°	near Llanybri · Dyfed	—	sustained	879 m	93 m	10.5%	≈caveated26.4%	Good
Lane near Llanystumdwy^°	near Llanystumdwy · Gwynedd	—	stepped	556 m	36 m	6.4%	≈caveated27.0%	Good
Lane near Llywel^°	near Trecastle · Powys	—	stepped	1500 m	59 m	3.9%	≈caveated20.8%	Good
Lane near Loddiswell^°	near Loddiswell · Devon	—	sustained	1027 m	77 m	7.5%	≈caveated21.9%	Needs confirmation
Lane near Loddiswell^°	near Loddiswell · Devon	—	sustained	526 m	50 m	9.4%	≈caveated20.9%	Good
Lane near Long Island^°	near Long Island · Devon	—	stepped	1008 m	64 m	6.3%	21.6%	High
Lane near Lowgill^°	near Lowgill · Cumbria	—	stepped	715 m	45 m	6.3%	20.8%	Good
Lane near Loxbeare^°	near Loxbeare · Devon	—	sustained	2560 m	96 m	3.8%	21.8%	Needs confirmation
Lane near Lustleigh^°	near Lustleigh · Devon	—	sustained	1313 m	104 m	7.9%	21.2%	High
Lane near Lustleigh^°	near Lustleigh · Devon	—	sustained	2767 m	167 m	6.0%	≈caveated29.7%	Good
Lane near Luxulyan Valley^°	near St Blazey · Cornwall	—	stepped	844 m	51 m	6.1%	20.4%	Good
Lane near Luxulyan Valley^°	near St Blazey · Cornwall	—	sustained	2277 m	113 m	4.9%	22.2%	Good
Lane near Maen-Offeren^°	near Blaenau Ffestiniog · Gwynedd	—	sustained	225 m	29 m	13.1%	25.3%	High
Lane near Maenan^°	near Maenan · Clwyd	—	sustained	1027 m	138 m	13.5%	≈caveated27.5%	Good
Lane near Mamhead Bottom^°	near Mamhead Bottom · Devon	—	sustained	2171 m	115 m	5.3%	26.9%	Needs confirmation
Lane near Manely^°	near Golant · Cornwall	—	stepped	1720 m	95 m	5.5%	≈caveated23.5%	Needs confirmation
Lane near Mansley Combe^°	near Mansley Combe · Somerset	—	sustained	1889 m	68 m	3.6%	23.0%	Good
Lane near Merther^°	near Merther · Cornwall	—	sustained	708 m	41 m	5.7%	20.4%	High
Lane near Middle Coombe^°	near Ludwell · Wiltshire	—	stepped	542 m	54 m	10.0%	≈caveated22.4%	Good
Lane near Middle Crackington^°	near Middle Crackington · Cornwall	—	sustained	967 m	94 m	9.7%	≈caveated22.3%	Needs confirmation
Lane near Middlewood^°	near Bathpool · Cornwall	—	sustained	656 m	93 m	14.2%	≈caveated32.6%	Needs confirmation
Lane near Millendreath^°	near Millendreath · Cornwall	—	sustained	211 m	41 m	19.6%	≈caveated28.6%	Good
Lane near Miskin^°	near Mountain Ash · Mid Glamorgan	—	sustained	315 m	47 m	14.9%	21.0%	High
Lane near Molland^°	near Molland · Devon	—	stepped	1741 m	97 m	5.6%	≈caveated26.9%	Needs confirmation
Lane near Moorswater^°	near Liskeard · Cornwall	—	stepped	1259 m	63 m	5.0%	23.2%	Good
Lane near Moorswater^°	near Liskeard · Cornwall	—	sustained	3126 m	157 m	5.0%	23.7%	Good
Lane near Moretonhampstead^°	near Moretonhampstead · Devon	—	stepped	1299 m	89 m	6.9%	≈caveated21.3%	Good
Lane near Morwenstow^°	near Woodford · Cornwall	—	sustained	624 m	44 m	7.1%	21.0%	High
Lane near Mount Pleasant^°	near Gateshead	—	sustained	231 m	24 m	10.2%	21.1%	High
Lane near Murchington^°	near Chagford · Devon	—	sustained	715 m	55 m	7.7%	23.1%	Needs confirmation
Lane near Newbiggin^°	near Lupton · Cumbria	—	stepped	1683 m	103 m	6.1%	20.1%	Needs confirmation
Lane near Newfoundland Point^°	near Dartmouth · Devon	—	sustained	704 m	93 m	13.1%	≈caveated27.3%	Good
Lane near Newfoundland Point^°	near Dartmouth · Devon	—	sustained	1283 m	105 m	8.2%	21.5%	Good
Lane near Newhaven^°	near Parkham · Devon	—	stepped	1145 m	67 m	5.8%	22.0%	Good
Lane near Newton^°	near Newton · Cornwall	—	sustained	1178 m	101 m	8.5%	23.1%	Good
Lane near North Stoke^°	near North Stoke · Somerset	—	sustained	1370 m	106 m	7.8%	21.5%	High
Lane near Oxford Down^°	near Filleigh · Devon	—	stepped	660 m	20 m	3.0%	20.2%	Good
Lane near Penpoll^°	near Penpoll · Cornwall	—	stepped	1580 m	78 m	4.9%	≈caveated27.6%	Good
Lane near Philham^°	near Philham · Devon	—	stepped	340 m	31 m	9.1%	22.7%	Good
Lane near Pidland Bottom^°	near Pidland Bottom · Devon	—	stepped	919 m	59 m	6.4%	20.9%	High
Lane near Pillaton^°	near Pillaton · Cornwall	—	sustained	1639 m	97 m	5.9%	≈caveated27.3%	Good
Lane near Port Navas^°	near Port Navas · Cornwall	—	sustained	2976 m	92 m	3.1%	≈caveated23.3%	Good
Lane near Price Town^°	near Price Town · Mid Glamorgan	—	sustained	432 m	46 m	10.6%	22.9%	High
Lane near Probus^°	near Probus · Cornwall	—	sustained	2950 m	82 m	2.8%	≈caveated28.1%	Good
Lane near Pyleigh^°	near Pyleigh · Somerset	—	sustained	693 m	64 m	9.2%	23.9%	Good
Lane near Rabb Clough^°	near Rabb Clough · Cheshire	—	sustained	798 m	87 m	10.9%	23.0%	High
Lane near Redpost^°	near Redpost · Cornwall	—	sustained	1637 m	117 m	7.1%	26.5%	Good
Lane near Rhyd-Meirionnydd	near Llangorwen · Dyfed	tag: 25% (2026)	sustained	4090 m	116 m	2.8%	13.9%	Good
Lane near Roseland Peninsula^°	near Roseland Peninsula · Cornwall	—	stepped	918 m	56 m	6.1%	18.4%	High
Lane near Roskruge Beacon^°	near St Keverne · Cornwall	—	stepped	1075 m	50 m	4.6%	24.8%	High
Lane near Sampford Spiney^°	near Sampford Spiney · Devon	—	sustained	637 m	69 m	10.9%	≈caveated22.9%	Good
Lane near Sandplace^°	near Looe · Cornwall	—	stepped	2159 m	95 m	4.4%	≈caveated21.1%	Needs confirmation
Lane near Shaugh Prior^°	near Shaugh Prior · Devon	—	sustained	1147 m	94 m	8.2%	≈caveated29.0%	Good
Lane near Sheepwash^°	near Sheepwash · Devon	—	stepped	646 m	37 m	5.8%	20.3%	Good
Lane near Sheldon^°	near Sheldon · Devon	—	stepped	1668 m	92 m	5.5%	20.4%	Needs confirmation
Lane near South Brent^°	near South Brent · Devon	—	sustained	800 m	84 m	10.5%	23.9%	Needs confirmation
Lane near South Pool^°	near South Pool · Devon	—	sustained	913 m	77 m	8.4%	20.1%	Good
Lane near St Jidgey^°	near St Jidgey · Cornwall	—	sustained	2552 m	77 m	3.0%	21.7%	Needs confirmation
Lane near St Michael Caerhays^°	near St Michael Caerhays · Cornwall	—	stepped	1604 m	77 m	4.8%	25.3%	High
Lane near St Neot^°	near St Neot · Cornwall	—	stepped	2063 m	107 m	5.2%	26.0%	Good
Lane near St Neot^°	near Mount · Cornwall	—	stepped	2218 m	60 m	2.7%	21.6%	Good
Lane near St Neot^°	near St Neot · Cornwall	—	sustained	995 m	87 m	8.8%	20.5%	High
Lane near St Neot^°	near St Neot · Cornwall	—	sustained	1182 m	79 m	6.7%	20.5%	High
Lane near St Pinnock^°	near Trevelmond · Cornwall	—	sustained	1123 m	83 m	7.4%	≈caveated20.6%	Good
Lane near St Pinnock^°	near Trevelmond · Cornwall	—	sustained	902 m	72 m	8.0%	≈caveated20.6%	Good
Lane near Staffield^°	near Staffield · Cumbria	—	stepped	880 m	70 m	7.9%	28.6%	High
Lane near Stanleytown^°	near Pontygwaith · Mid Glamorgan	—	sustained	164 m	27 m	16.1%	28.4%	High
Lane near Steep Marsh^°	near Steep Marsh · Hampshire	—	stepped	866 m	55 m	6.4%	22.4%	Good
Lane near Stepaside^°	near Stepaside · Powys	—	sustained	1727 m	112 m	6.5%	≈caveated26.3%	Good
Lane near Stokeinteignhead^°	near Stokeinteignhead · Devon	—	sustained	506 m	51 m	10.2%	23.9%	Good
Lane near Sugarloaf^°	near Wetton · Staffordshire	—	sustained	754 m	78 m	10.4%	22.0%	Good
Lane near Sutcombe^°	near Sutcombe · Devon	—	stepped	2348 m	51 m	2.2%	21.1%	Good
Lane near Templeton^°	near Templeton · Devon	—	stepped	1708 m	111 m	6.5%	21.6%	High
Lane near Thursden Valley^°	near Thursden Valley · Lancashire	—	sustained	815 m	60 m	7.4%	22.2%	High
Lane near Tinhay^°	near Tinhay · Devon	—	sustained	2702 m	135 m	5.0%	20.1%	Needs confirmation
Lane near Tinhay^°	near Tinhay · Devon	—	sustained	737 m	86 m	11.6%	20.1%	Needs confirmation
Lane near Toadsmoor Valley^°	near Toadsmoor Valley · Gloucestershire	—	stepped	374 m	35 m	9.4%	23.8%	Good
Lane near Tom's Rock^°	near Tom's Rock · Cornwall	—	sustained	1497 m	75 m	5.0%	25.6%	High
Lane near Ton Pentre^°	near Rhondda · Mid Glamorgan	—	sustained	314 m	40 m	12.6%	≈caveated28.5%	Good
Lane near Trealaw^°	near Tonypandy · Mid Glamorgan	—	stepped	409 m	35 m	8.6%	23.8%	Needs confirmation
Lane near Trealaw^°	near Tonypandy · Mid Glamorgan	—	stepped	253 m	25 m	9.9%	≈caveated24.5%	Good
Lane near Treborough^°	near Treborough · Somerset	—	sustained	2102 m	125 m	6.0%	21.1%	Needs confirmation
Lane near Trebudannon^°	near Trebudannon · Cornwall	—	stepped	3938 m	43 m	1.1%	23.6%	Needs confirmation
Lane near Trelawne^°	near Looe · Cornwall	—	stepped	1937 m	130 m	6.7%	24.9%	Needs confirmation
Lane near Trenance^°	near Trenance · Cornwall	—	sustained	361 m	37 m	10.2%	22.1%	Good
Lane near Turkdean^°	near Turkdean · Gloucestershire	—	sustained	1375 m	68 m	4.9%	21.2%	Needs confirmation
Lane near Twinbrook Park^°	near Twinbrook Park · Cornwall	—	sustained	463 m	48 m	10.3%	≈caveated23.0%	Good
Lane near Twitchen^°	near Twitchen · Devon	—	stepped	991 m	69 m	7.0%	≈caveated23.3%	Needs confirmation
Lane near Ty'n-y-groes^°	near Ty'n-y-groes · Clwyd	—	stepped	957 m	48 m	5.0%	≈caveated26.2%	Good
Lane near Tythecott^°	near Tythecott · Devon	—	stepped	2727 m	69 m	2.5%	21.7%	Needs confirmation
Lane near Tythecott^°	near Tythecott · Devon	—	stepped	996 m	64 m	6.4%	20.9%	High
Lane near Umberleigh^°	near Umberleigh · Devon	—	stepped	1513 m	63 m	4.1%	20.2%	Good
Lane near Upcott^°	near Upcott · Devon	—	stepped	746 m	35 m	4.8%	≈caveated21.2%	Good
Lane near Upottery^°	near Upottery · Devon	—	stepped	1229 m	82 m	6.6%	≈caveated20.9%	Good
Lane near Vellanoweth^°	near Vellanoweth · Cornwall	—	sustained	1829 m	83 m	4.5%	24.6%	Good
Lane near Venn^°	near Aveton Gifford · Devon	—	sustained	609 m	73 m	11.9%	20.9%	Good
Lane near Walreddon^°	near Walreddon · Devon	—	stepped	2594 m	119 m	4.6%	20.3%	Needs confirmation
Lane near Warcombe^°	near Loddiswell · Devon	—	sustained	1529 m	116 m	7.6%	≈caveated21.6%	Good
Lane near Wernffrwd^°	near Wernffrwd · West Glamorgan	—	sustained	1264 m	81 m	6.4%	22.0%	High
Lane near West Alvington^°	near Kingsbridge · Devon	—	sustained	1135 m	83 m	7.3%	≈caveated16.5%	Good
Lane near Whitesands Bay^°	near Whitesands Bay · Dyfed	—	sustained	610 m	48 m	7.9%	22.1%	Good
Lane near Willand^°	near Willand · Somerset	—	stepped	1096 m	37 m	3.4%	22.4%	High
Lane near Wincombe^°	near Donhead St Mary · Wiltshire	—	stepped	614 m	52 m	8.5%	20.9%	Needs confirmation
Lane near Wing^°	near Wing · Rutland	—	sustained	385 m	32 m	8.4%	20.0%	Good
Lane near Winsley Hill^°	near Ainthorpe · North Yorkshire	—	stepped	593 m	41 m	6.8%	21.0%	High
Lane near Winster^°	near Winster · Cumbria	—	sustained	1074 m	75 m	6.9%	21.5%	High
Lane near Winswell^°	near Winswell · Devon	—	stepped	2417 m	66 m	2.7%	23.6%	High
Lane near Witheridge^°	near Witheridge · Devon	—	stepped	591 m	51 m	8.6%	23.1%	Needs confirmation
Lane near Withiel^°	near Withiel · Cornwall	—	sustained	663 m	75 m	11.4%	22.8%	High
Lane near Woodland Head^°	near Woodland Head · Devon	—	stepped	1711 m	103 m	6.0%	26.5%	High
Lane near Woodland Head	near Woodland Head · Devon	—	sustained	1097 m	80 m	7.3%	24.9%	High
Lane near Worley Hill^°	near Chudleigh · Devon	—	stepped	988 m	77 m	7.8%	22.6%	High
Lane near Wyke^°	near Wyke · Shropshire	—	stepped	328 m	26 m	8.0%	20.8%	High
Lane near Yarnscombe^°	near Yarnscombe · Devon	—	sustained	3565 m	143 m	4.0%	21.9%	Needs confirmation
Lane near Ystradfellte^°	near Ystradfellte · Powys	—	stepped	2317 m	79 m	3.4%	21.0%	High
Langaller Hill	near Brushford · Somerset	—	stepped	1468 m	77 m	5.2%	22.7%	High
Langcliffe Scar^°	near Langcliffe · North Yorkshire	100 Climbs²	sustained	800 m	114 m	14.3%	23.7%	High
Langley to Toot Hill^°	near Langley · Cheshire	—	sustained	2696 m	185 m	6.9%	25.0%	Needs confirmation
Lanjeth to Watch Hill^°	near Lanjeth · Cornwall	—	sustained	2110 m	134 m	6.3%	21.6%	Good
Largs Road	near Largs · North Ayrshire	—	stepped	3661 m	174 m	4.8%	≈caveated15.4%	Needs confirmation
Larrick to Newtown^°	near Larrick · Cornwall	—	stepped	1287 m	76 m	5.9%	22.4%	Good
Latchley to Chilsworthy^°	near Latchley · Cornwall	—	sustained	1475 m	120 m	8.1%	22.5%	Needs confirmation
Laurieston Road	near Gatehouse of Fleet · Dumfries and Galloway	—	sustained	5100 m	177 m	3.5%	≈caveated19.6%	Good
Lawbrook Lane	near Hoe · Surrey	—	sustained	3825 m	98 m	2.6%	21.9%	Needs confirmation
Lawnt to Tir Mostyn^°	near Dinbych · Clwyd	—	sustained	9367 m	331 m	3.5%	17.9%	High
Leadgate Bank	near Riding Cleugh · Northumberland	—	stepped	1674 m	138 m	8.3%	24.6%	High
Leashaw Road	near Whatstandwell · Derbyshire	—	stepped	1279 m	77 m	6.0%	23.5%	Needs confirmation
Lee Lane	near Stump Cross	100 Climbs²	sustained	898 m	133 m	14.8%	≈caveated22.4%	Needs confirmation
Lee Road	near Lynton · Devon	—	sustained	227 m	30 m	13.3%	≈caveated20.5%	Good
Lees Road	near Porchester · Nottinghamshire	—	stepped	404 m	30 m	7.5%	21.4%	High
Leith Hill Road	near Forest Green · Surrey	100 Climbs²	sustained	2699 m	165 m	6.1%	15.1%	Good
Lemington Dean to Horseley Hill^°	near Lemington Dean · Scottish Borders	—	sustained	3686 m	169 m	4.6%	13.2%	Good
Lenches to Waterside^°	near Colne · Lancashire	—	sustained	544 m	54 m	10.0%	22.5%	High
Lerryn to Manely^°	near Lerryn · Cornwall	—	sustained	1342 m	95 m	7.1%	22.6%	Good
Lesnewth to Trewannion Down^°	near Lesnewth · Cornwall	—	sustained	2054 m	139 m	6.8%	25.9%	Good
Levencorroch Hill to Levencorroch^°	near Levencorroch · North Ayrshire	—	stepped	817 m	55 m	6.8%	20.6%	Good
Lever's Hill	near Silver Street · Gloucestershire	—	sustained	1757 m	181 m	10.3%	27.1%	Good
Lewes Golf Club	near Lewes · East Sussex	sign: 17% (2014)	sustained	680 m	75 m	11.0%	≈caveated26.1%	Good
Lewis Street	near Abersychan · Gwent	—	stepped	1483 m	87 m	5.9%	23.2%	High
Lewsley Lane	near Rock · Devon	—	stepped	780 m	77 m	9.9%	25.8%	High
Ley Hill Road	near Ley Hill · Buckinghamshire	—	stepped	414 m	33 m	7.9%	20.8%	High
Limber Hill	near Carr End · North Yorkshire	—	stepped	1013 m	66 m	6.5%	30.1%	Good
Lindridge Hill	near Sandygate · Devon	—	sustained	680 m	43 m	6.3%	≈caveated30.7%	Needs confirmation
Ling Hill	near Lady Edith's · North Yorkshire	—	stepped	410 m	26 m	6.4%	20.7%	High
Link Lane	near Burrington · Somerset	—	stepped	1315 m	106 m	8.0%	21.0%	Needs confirmation
Lister's Drive	near Cam · Gloucestershire	—	sustained	740 m	85 m	11.5%	24.2%	High
Little Fryup Dale to Loose Howe^°	near Little Fryup Dale · North Yorkshire	—	stepped	4080 m	203 m	5.0%	20.2%	High
Little Quantock Lane	near Triscombe · Somerset	—	sustained	1404 m	56 m	4.0%	20.1%	Needs confirmation
Little Scone to Galdrings^°	near Machrihanish · Argyll and Bute	—	sustained	1942 m	116 m	6.0%	21.0%	High
Little Toms	near East Butterleigh · Devon	—	stepped	1004 m	59 m	5.8%	20.4%	High
Littlebeck to Eskdaleside^°	near Littlebeck · North Yorkshire	—	stepped	2137 m	111 m	5.2%	27.9%	Good
Littlemoor Road	near Broadbottom	—	sustained	1192 m	115 m	9.6%	22.3%	Needs confirmation
Livingstone Road	near Bolton Woods	—	sustained	459 m	57 m	12.5%	20.6%	High
Llanarth to Synod Inn / Post Mawr^°	near Llanarth · Dyfed	—	stepped	3396 m	110 m	3.2%	13.0%	High
Llanbedr Dyffryn Clwyd to Gyrn^°	near Llanbedr-Dyffryn-Clwyd · Clwyd	—	sustained	2370 m	149 m	6.3%	18.1%	High
Llanberis Pass^°	near Gwastadnant · Gwynedd	Wikipedia³, Another 100⁵	sustained	1716 m	86 m	5.0%	11.3%	High
Llanberis to Dinas^°	near Llanberis · Gwynedd	—	sustained	1233 m	156 m	12.7%	≈caveated25.6%	Good
Llancowrid to Goetre Hill^°	near Sarn · Powys	—	stepped	2355 m	100 m	4.2%	≈caveated26.4%	Good
Llandderfel to Carnedd Wen^°	near Llandderfel · Gwynedd	—	stepped	2906 m	221 m	7.6%	≈caveated26.4%	Good
Llandecwyn to Bryn Bwbach^°	near Llandecwyn · Gwynedd	—	sustained	1271 m	86 m	6.8%	≈caveated27.8%	Good
Llandeilo Road	near Garnant · Dyfed	—	stepped	2628 m	129 m	4.9%	≈caveated29.8%	Good
Llanellen to Cefn y Galchen^°	near Llanellen · Gwent	—	sustained	5964 m	452 m	7.6%	≈caveated21.5%	Good
Llanellen to Coed y Prior^°	near Llanellen · Gwent	—	sustained	950 m	138 m	14.5%	≈caveated30.4%	Good
Llanfach Road	near Abercarn · Gwent	—	sustained	1737 m	187 m	10.8%	≈caveated20.9%	Good
Llanfair Waterdine to Lloyney^°	near Llanfair Waterdine · Shropshire	—	stepped	1387 m	68 m	4.9%	23.8%	Good
Llanfihangel-y-Creuddyn to Pant-y-crug	near Llanfihangel-y-Creuddyn · Dyfed	—	stepped	1494 m	96 m	6.4%	25.4%	Good
Llanfynydd to Pant-y-Cerig^°	near Llanfynydd · Dyfed	—	stepped	2692 m	150 m	5.6%	≈caveated21.3%	Good
Llangadog to Pentir-bach^°	near Llangadog · Dyfed	—	stepped	2117 m	69 m	3.2%	≈caveated26.4%	Good
Llangollen to Blaen-Bache Dingle^°	near Llangollen · Clwyd	—	sustained	2665 m	279 m	10.5%	≈caveated25.0%	Good
Llangrove Road	near Whitchurch · Herefordshire	—	sustained	898 m	75 m	8.3%	23.8%	High
Llanguicke Road	near Pontardawe · West Glamorgan	—	sustained	1172 m	156 m	13.3%	≈caveated28.7%	Good
Llangynidr to Cwm Cleisfer^°	near Llangynidr · Powys	—	sustained	2044 m	149 m	7.3%	≈caveated27.2%	Good
Llanilid to Ruthin^°	near Ruthin · South Glamorgan	—	stepped	1616 m	31 m	1.9%	≈caveated12.0%	Needs confirmation
Llanwonno Road	near Hopkinstown · Mid Glamorgan	—	sustained	659 m	70 m	10.7%	20.2%	Good
Llanybydder to Mynydd Llanybyther^°	near Llanybydder · Dyfed	—	sustained	6003 m	286 m	4.8%	15.2%	Good
Llanymynech to Llanymynech Hill^°	near Llanymynech · Powys	—	stepped	463 m	35 m	7.6%	≈caveated20.5%	Good
Llawr-y-glyn to Glyntrefnant^°	near Llawr-y-glyn · Powys	—	sustained	1033 m	131 m	12.6%	≈caveated26.7%	Good
Lloyd Avenue	near Shiphay · Devon	—	stepped	409 m	34 m	8.2%	21.2%	High
Llwynmawr to Bedwlwyn^°	near Llwynmawr · Clwyd	—	sustained	1808 m	159 m	8.8%	26.1%	Needs confirmation
Locker Lane	near Allithwaite · Cumbria	—	stepped	1217 m	71 m	5.8%	26.3%	Good
Lockyers Hill	near Fraby's Bottom · Kent	—	stepped	778 m	68 m	8.7%	23.7%	Good
Loddiswell to Ashford^°	near Loddiswell · Devon	—	sustained	1004 m	68 m	6.8%	≈caveated24.8%	Needs confirmation
Lofthouse to Middlesmoor^°	near Lofthouse · North Yorkshire	—	sustained	1507 m	130 m	8.6%	23.4%	Good
Lombards Wynd	near Richmond · North Yorkshire	—	sustained	265 m	37 m	14.0%	24.8%	Good
Lon Bribwll	near Llanbedrog · Gwynedd	—	stepped	635 m	40 m	6.3%	≈caveated27.2%	Needs confirmation
Lon Golff	near Machroes · Gwynedd	—	stepped	907 m	59 m	6.5%	23.7%	Good
Long Hill^°	near Whaley Bridge · Derbyshire	National HC¹	sustained	7710 m	223 m	2.9%	14.7%	High
Long Lane	near Park Head	—	sustained	879 m	84 m	9.5%	21.5%	High
Longcroft to Braeface^°	near Longcroft · Falkirk	—	sustained	1259 m	73 m	5.8%	≈caveated24.0%	Good
Longfield Road	near Todmorden	—	sustained	444 m	40 m	9.0%	24.5%	Needs confirmation
Longley Lane	near Sowerby Bridge	—	sustained	1542 m	112 m	7.3%	22.9%	Good
Longshaw Ford Road	near Johnson Fold	—	sustained	930 m	73 m	7.8%	20.2%	High
Lonkley Terrace	near Allendale Town · Northumberland	—	stepped	3709 m	134 m	3.6%	24.7%	Needs confirmation
Lostwithiel to Sweetshouse^°	near Lostwithiel · Cornwall	—	sustained	1895 m	157 m	8.3%	21.1%	Needs confirmation
Love Lane	near Dolgellau · Gwynedd	—	sustained	380 m	36 m	9.5%	20.7%	Good
Love's Lane	near Morcombelake · Dorset	—	sustained	458 m	52 m	11.4%	20.4%	High
Low Fremington to High Fremington^°	near Grinton · North Yorkshire	—	stepped	412 m	33 m	8.1%	24.8%	Good
Low Lane	near Draughton · North Yorkshire	—	sustained	545 m	48 m	8.9%	≈caveated21.2%	Good
Low Town Bank Road	near Kilburn · North Yorkshire	100 Climbs²	sustained	1826 m	180 m	9.8%	19.4%	Good
Low Westwood Lane	near Linthwaite	—	sustained	909 m	108 m	11.9%	≈caveated22.3%	Needs confirmation
Lower Audley Road	near Torquay · Devon	—	sustained	233 m	25 m	10.8%	20.8%	High
Lower Bayble to Pabail Uarach^°	near Lower Bayble · Na h-Eileanan an Iar	—	stepped	277 m	31 m	11.4%	21.6%	High
Lower Harper's Road	near Abersychan · Gwent	—	stepped	1502 m	114 m	7.6%	≈caveated26.1%	Good
Lower Lydbrook to Carterspiece	near Lower Lydbrook · Gloucestershire	—	sustained	3648 m	194 m	5.3%	≈caveated23.9%	Good
Lower Lye to Upper Lye^°	near Lower Lye · Herefordshire	—	sustained	1959 m	79 m	4.0%	≈caveated17.4%	Good
Lower Shepton to Stoney Stoke^°	near Shepton Montague · Somerset	—	stepped	2983 m	47 m	1.6%	≈caveated21.3%	Needs confirmation
Lower Stoney Road	near Abersychan · Gwent	—	stepped	623 m	62 m	10.0%	≈caveated26.1%	Good
Lower Street	near Dittisham · Devon	—	sustained	236 m	38 m	15.9%	≈caveated23.9%	Good
Lower Strode to Silkhay^°	near Lower Strode · Dorset	—	sustained	612 m	39 m	6.3%	20.4%	High
Lowfield Lane	near Kentmere · Cumbria	—	sustained	704 m	63 m	9.0%	23.6%	Needs confirmation
Luckett to Kit Hill^°	near Luckett · Cornwall	—	sustained	3568 m	288 m	8.1%	25.3%	High
Lumb Lane	near Almondbury Common	—	sustained	1267 m	120 m	9.5%	20.9%	High
Luppitt to Hartridge^°	near Luppitt · Devon	—	sustained	978 m	87 m	8.9%	25.4%	High
Lustleigh to Hingston Down^°	near Lustleigh · Devon	—	stepped	6059 m	246 m	4.1%	24.3%	Good
Lydbury North to Oakeley Mynd^°	near Lydbury North · Shropshire	—	sustained	1211 m	117 m	9.7%	24.7%	High
Lygon Bank	near Great Malvern · Worcestershire	—	sustained	177 m	24 m	13.7%	23.3%	High
Lynbridge Road	near Lynton · Devon	—	sustained	1987 m	202 m	10.2%	≈caveated23.9%	Needs confirmation
Lôn Nant Stigallt	near Pwllheli · Gwynedd	—	sustained	917 m	60 m	6.5%	≈caveated27.7%	Good
Macclesfield Road	near Whaley Bridge · Derbyshire	—	sustained	1534 m	108 m	7.0%	20.8%	Needs confirmation
Maesyffynnon Terrace	near Tonypandy · Mid Glamorgan	—	stepped	364 m	38 m	10.5%	21.8%	High
Main Road	near Crockham Hill · Kent	—	sustained	794 m	35 m	4.5%	≈caveated11.5%	Good
Maker Lane	near Millbrook · Cornwall	—	sustained	963 m	93 m	9.7%	23.6%	Good
Malham Cove (Cove Road)	near Malham · North Yorkshire	100 Climbs²	sustained	2467 m	187 m	7.6%	19.1%	High
Malinscommon Lane	near Wirksworth · Derbyshire	—	sustained	1676 m	139 m	8.3%	26.8%	High
Manaccan to Roskruge Beacon^°	near Manaccan · Cornwall	—	stepped	2722 m	79 m	2.9%	22.2%	Good
Manafon to Tŷ-mawr Hill^°	near Manafon · Powys	—	sustained	703 m	75 m	10.6%	24.8%	Good
Mannacott Lane	near Trentishoe · Devon	—	sustained	1412 m	195 m	13.8%	≈caveated27.0%	Good
Manor Farm Lane	near Goleigh Bottom · Hampshire	—	sustained	1453 m	66 m	4.5%	21.2%	Needs confirmation
Mantley Lane	near Grains Bar	—	sustained	711 m	45 m	6.4%	22.6%	High
Mardu Lane	near Newcastle · Shropshire	—	sustained	1447 m	96 m	6.6%	≈caveated26.9%	Good
Margery Lane	near Clearwell · Gloucestershire	—	sustained	740 m	63 m	8.5%	24.2%	High
Marle Hill	near Chalford · Gloucestershire	—	sustained	536 m	81 m	15.1%	26.1%	Good
Marsden Lane	near Lingards Wood	—	sustained	2062 m	147 m	7.1%	24.7%	Good
Marsett Lane	near Marsett · North Yorkshire	—	stepped	3408 m	154 m	4.5%	21.1%	High
Marshbrook to Shooter's Knoll^°	near Marshbrook · Shropshire	—	stepped	1756 m	84 m	4.8%	≈caveated23.6%	Good
Marshclose Hill	near Hawkridge · Somerset	—	stepped	1240 m	95 m	7.7%	24.2%	Good
Marton to Beacon Ring^°	near Marton · Shropshire	—	sustained	3682 m	276 m	7.5%	≈caveated29.5%	Good
Marystow to Stowford^°	near Marystow · Devon	—	stepped	3002 m	101 m	3.4%	21.9%	High
Maudlin Drive	near Teignmouth · Devon	—	sustained	1498 m	129 m	8.6%	22.8%	Good
McBain's Hill	near Strath Dores · Highland	—	sustained	3156 m	176 m	5.6%	≈caveated17.6%	Good
Meadow Rise	near Dawlish · Devon	—	sustained	681 m	73 m	10.7%	23.1%	High
Meal Bank to Patton Bridge^°	near Meal Bank · Cumbria	—	sustained	2509 m	120 m	4.8%	22.6%	Good
Meg Lane	near Milnsbridge	—	stepped	566 m	54 m	9.5%	21.8%	High
Melin-y-coed to Pant-y-maes^°	near Melin-y-coed · Clwyd	—	sustained	2452 m	262 m	10.7%	≈caveated30.3%	Good
Mennock Pass	near Dunin Cleuch · Dumfries and Galloway	—	sustained	7079 m	261 m	3.7%	11.9%	High
Merrymeet to Pengover Green^°	near Merrymeet · Cornwall	—	sustained	2318 m	77 m	3.3%	21.8%	Good
Michaelgate	near Lincoln · Lincolnshire	100 Climbs²	sustained	185 m	23 m	12.6%	16.6%	High
Middle Barn Hill	near Worlaby · Lincolnshire	—	sustained	1105 m	73 m	6.6%	22.3%	Good
Middle Combe to Hawkmoor Park^°	near Bovey Tracey · Devon	—	sustained	3352 m	121 m	3.6%	22.4%	Good
Middle Combe to Hennock^°	near Bovey Tracey · Devon	—	sustained	1867 m	114 m	6.1%	22.8%	High
Middle Crackington to St Gennys^°	near Middle Crackington · Cornwall	—	sustained	658 m	91 m	13.9%	25.6%	Good
Middle Duntisbourne to Duntisbourne Leer^°	near Middle Duntisbourne · Gloucestershire	—	sustained	1539 m	42 m	2.7%	≈caveated20.8%	Good
Milford Lane	near Tamerton Foliot · Devon	—	sustained	525 m	67 m	12.8%	≈caveated23.0%	Good
Milford to Edistone^°	near Milford · Devon	—	stepped	1648 m	74 m	4.5%	23.1%	Good
Milken Lane	near Littlemoor · Derbyshire	—	stepped	2081 m	122 m	5.9%	24.9%	Good
Mill Bank	near Boggle Hole · North Yorkshire	—	sustained	459 m	47 m	10.2%	21.2%	Good
Mill Dingle to Pant-glas^°	near Mill Dingle · Shropshire	—	stepped	1849 m	48 m	2.6%	24.3%	High
Mill End to Rotten Row^°	near Mill End · Buckinghamshire	—	stepped	2280 m	102 m	4.5%	23.3%	Good
Mill Lane	near Lower Heyford · Oxfordshire	—	sustained	603 m	33 m	5.5%	8.9%	Good
Mill Rock to Borough Valley^°	near Lee · Devon	—	sustained	1310 m	120 m	9.2%	≈caveated26.2%	Needs confirmation
Mill Steep	near Twitchen · Devon	—	stepped	852 m	58 m	6.8%	≈caveated23.3%	Needs confirmation
Milladon Lane	near Bake Bottoms · Cornwall	—	sustained	335 m	53 m	15.7%	≈caveated24.8%	Needs confirmation
Millcombe to Blackawton^°	near Blackawton · Devon	—	stepped	1026 m	76 m	7.4%	28.2%	Needs confirmation
Millhayes to Stockland Hill	near Millhayes · Devon	—	sustained	1314 m	89 m	6.8%	20.3%	High
Millook Mouth to Bridwill Point^°	near Millook Mouth · Cornwall	—	sustained	708 m	96 m	13.5%	28.0%	High
Millook Mouth to Raven's Beak^°	near Millook Mouth · Cornwall	—	sustained	767 m	103 m	13.4%	≈caveated20.9%	Good
Milltir Gerrig^°	near Llangynog · Powys	Wikipedia³	sustained	5940 m	325 m	5.5%	≈caveated11.3%	Good
Milltown to No Man's Land^°	near Lostwithiel · Cornwall	—	stepped	2692 m	120 m	4.4%	21.6%	Needs confirmation
Millway Lane	near Milldale · Staffordshire	—	sustained	1108 m	107 m	9.7%	20.9%	High
Milton Lane	near Tunstead Milton · Derbyshire	—	sustained	1368 m	116 m	8.5%	23.4%	Good
Minffordd to Cwm Rhwyddfor^°	near Minffordd · Gwynedd	Wikipedia³, Warren app⁴	sustained	2505 m	148 m	5.9%	12.0%	High
Miry Lane	near Netherthong	—	stepped	597 m	56 m	9.4%	≈caveated26.8%	Good
Moel Emwnt to Moel Unben^°	near Llanfair Talhaiarn · Clwyd	—	sustained	2977 m	123 m	4.1%	23.2%	Good
Moles Cross	near Compton · Devon	—	sustained	762 m	49 m	6.4%	≈caveated18.0%	Good
Moles Lane	near Edginswell · Devon	—	stepped	2599 m	102 m	3.9%	20.8%	High
Money Acre Road	near Farway · Devon	—	sustained	2110 m	158 m	7.5%	≈caveated26.6%	Good
Monks Hill	near Kewstoke · Somerset	—	sustained	505 m	62 m	12.3%	≈caveated24.8%	Good
Monsal Head	near Little Longstone · Derbyshire	100 Climbs²	sustained	482 m	62 m	12.8%	20.3%	High
Moor Side Lane	near Wiswell · Lancashire	—	sustained	512 m	39 m	7.7%	20.0%	High
Moore Street	near Gateshead	—	sustained	799 m	69 m	8.6%	20.8%	High
Moorhaven Village to Wrangaton Bottom^°	near Moorhaven Village · Devon	—	sustained	1338 m	131 m	9.8%	20.3%	Good
Moorswater to Liskeard^°	near Liskeard · Cornwall	—	sustained	768 m	70 m	9.1%	20.7%	Needs confirmation
More Hall Lane	near Wharncliffe Side	—	sustained	1752 m	133 m	7.6%	21.0%	Needs confirmation
Moretonhampstead to Butterdon Hill^°	near Moretonhampstead · Devon	—	sustained	771 m	94 m	12.2%	20.4%	Good
Moretonhampstead to Butterdon Hill^°	near Moretonhampstead · Devon	—	sustained	3342 m	141 m	4.2%	26.7%	Good
Moretonhampstead to Butterdon Hill^°	near Moretonhampstead · Devon	—	sustained	1227 m	78 m	6.3%	21.6%	Needs confirmation
Moretonhampstead to Butterdon Hill^°	near Moretonhampstead · Devon	—	stepped	1953 m	92 m	4.7%	20.3%	Good
Morleigh Road	near Harbertonford · Devon	—	stepped	1194 m	64 m	5.3%	≈caveated20.3%	Needs confirmation
Mortimer Road	near Pinfold Clough	—	stepped	2079 m	37 m	1.8%	20.3%	Good
Mortin Clough to Chisworth^°	near Mortin Clough	—	sustained	288 m	30 m	10.6%	21.9%	High
Mote Road	near Ivy Hatch · Kent	—	stepped	1133 m	65 m	5.7%	20.1%	Needs confirmation
Mott Street	near High Beech · Essex	100 Climbs²	sustained	642 m	40 m	6.3%	≈caveated15.4%	Good
Mounson Hill	near Woodland Head · Devon	—	stepped	495 m	50 m	10.0%	21.7%	High
Mount Boone	near Dartmouth · Devon	—	sustained	1046 m	103 m	9.9%	23.0%	Needs confirmation
Mount Pleasant Terrace	near Mountain Ash · Mid Glamorgan	—	sustained	724 m	62 m	8.5%	21.6%	High
Mount Road	near Risca · Gwent	—	stepped	825 m	95 m	11.5%	≈caveated26.5%	Good
Mountain Road	near Port Talbot · West Glamorgan	—	stepped	514 m	53 m	10.4%	≈caveated31.4%	Good
Mountain Road	near Risca · Gwent	—	sustained	3884 m	274 m	7.0%	≈caveated26.5%	Good
Mow Cop (Station Road)	near The Bank · Cheshire	National HC¹, 100 Climbs²	sustained	1044 m	124 m	11.9%	24.1%	High
Mow Lane	near Congleton · Cheshire	—	sustained	2152 m	113 m	5.3%	20.2%	High
Mowing's Lane	near Ulverston · Cumbria	—	stepped	320 m	25 m	7.9%	20.7%	High
Muker to Kisdon Bottom^°	near Muker · North Yorkshire	—	stepped	1629 m	86 m	5.3%	22.4%	High
Musbury to Edge Hill^°	near Musbury · Devon	—	sustained	1367 m	129 m	9.4%	23.7%	Needs confirmation
Mutton Street	near Marshalsea · Dorset	—	stepped	1851 m	95 m	5.1%	20.1%	High
Myrtle Road	near Lower Wellhouse	—	sustained	491 m	62 m	12.6%	22.1%	Good
Nadder Bottom	near Nadderwater · Devon	—	sustained	2587 m	172 m	6.7%	26.3%	Needs confirmation
Nant-y-Rhiw to Moel Trefriw^°	near Nant-y-Rhiw · Clwyd	—	sustained	4096 m	279 m	6.8%	≈caveated25.6%	Good
Netherton Lane	near Combe Martin · Devon	—	sustained	417 m	50 m	12.1%	20.9%	Needs confirmation
New Earth Street	near Mossley	—	sustained	339 m	49 m	14.6%	22.1%	High
New Mill Bank	near Bolsterstone	—	sustained	1115 m	144 m	12.9%	22.0%	Needs confirmation
New Mills to Ceunant y Garys	near Llanfyllin · Powys	—	sustained	1936 m	201 m	10.4%	≈caveated27.2%	Good
New Road	near Rocher Bottom	—	sustained	1887 m	131 m	6.9%	27.6%	Good
New Town to Church Hill^°	near New Town · Herefordshire	—	stepped	4443 m	174 m	3.9%	27.2%	Good
Newbiggin to Conny Tammy Currack^°	near Askrigg · North Yorkshire	—	sustained	2814 m	262 m	9.3%	22.1%	High
Newbridge to Higher Keason^°	near Callington · Cornwall	—	stepped	4748 m	124 m	2.6%	21.2%	Good
Newbuilding's Hill	near Upham · Devon	—	sustained	858 m	81 m	9.4%	22.9%	Good
Newcastle to Spoad Hill^°	near Newcastle · Shropshire	—	sustained	1765 m	189 m	10.7%	30.5%	Needs confirmation
Newgale Hill	near Newgale · Dyfed	Warren app⁴	sustained	836 m	83 m	9.9%	21.7%	High
Newland Road	near Upper Redbrook · Gwent	—	sustained	993 m	102 m	10.3%	24.5%	High
Newlands Pass	near Buttermere · Cumbria	—	sustained	1021 m	95 m	9.3%	20.3%	High
Newlands Pass	near Buttermere · Cumbria	National HC¹, 100 Climbs²	sustained	1000 m	124 m	12.4%	21.6%	High
Newlands Pass	near Lll Gill · Cumbria	—	stepped	1167 m	95 m	8.1%	23.6%	High
Newmills to Higher Truscott^°	near Newmills · Cornwall	—	sustained	779 m	76 m	9.7%	21.5%	Good
Newmills to Higher Truscott^°	near Newmills · Cornwall	—	stepped	1544 m	86 m	5.5%	22.8%	Good
Newmills to Tregadillett^°	near Tregadillett · Cornwall	—	stepped	1128 m	84 m	7.5%	≈caveated21.4%	Needs confirmation
Newstead Rise	near Caterham · Surrey	—	stepped	462 m	32 m	6.9%	21.1%	High
Newton of Falkland to Purin Hill^°	near Newton of Falkland · Fife	—	sustained	2338 m	232 m	9.9%	15.0%	Good
Newtown Knott to Broad Oak^°	near Newbiggin · Cumbria	—	stepped	1684 m	64 m	3.8%	20.8%	Good
Nick O' Pendle	near Sabden · Lancashire	National HC¹, 100 Climbs²	sustained	1343 m	123 m	9.2%	16.3%	High
Noddle Hill to Scawton^°	near Nettle Dale · North Yorkshire	—	stepped	1564 m	87 m	5.6%	21.8%	High
Nomansland to Uppincott^°	near Nomansland · Devon	—	stepped	1434 m	59 m	4.1%	≈caveated30.3%	Good
Norcliffe Lane	near Hipperholme	—	sustained	1336 m	108 m	8.1%	22.4%	High
Norcott Hill	near Cow Roast · Hertfordshire	—	sustained	790 m	54 m	6.9%	22.7%	High
Norris Green to Newton^°	near Norris Green · Cornwall	—	sustained	295 m	45 m	15.4%	20.3%	Good
North Bird's Hill to Monksilver^°	near Monksilver · Somerset	—	sustained	596 m	48 m	8.0%	23.6%	Good
North Buckland Hill	near Middle Winsham · Devon	—	stepped	2240 m	92 m	4.1%	≈caveated23.2%	Needs confirmation
North Malvern Road	near Great Malvern · Worcestershire	—	sustained	1860 m	122 m	6.6%	21.1%	High
North Molton to North Molton Ridge^°	near North Molton · Devon	—	sustained	5123 m	278 m	5.4%	≈caveated15.1%	Good
North Radworthy to Span Head^°	near North Radworthy · Devon	—	sustained	6324 m	255 m	4.0%	19.4%	Good
Northgate	near Honley	—	sustained	841 m	63 m	7.5%	20.9%	Good
Northway to Pyleigh^°	near Fitzhead · Somerset	—	stepped	1882 m	82 m	4.4%	24.1%	High
Nought Moor Road	near Pateley Bridge · North Yorkshire	—	sustained	2334 m	211 m	9.0%	21.0%	High
Noverton Lane	near Prestbury · Gloucestershire	—	sustained	1147 m	79 m	6.9%	20.2%	Needs confirmation
Nower Road	near Kilmington · Devon	—	sustained	2110 m	132 m	6.3%	≈caveated24.4%	Good
Nutgrove Lane	near Chew Magna · Somerset	—	sustained	691 m	86 m	12.5%	24.0%	Good
Olchon Valley	near Olchon Valley · Herefordshire	—	sustained	2096 m	152 m	7.2%	20.0%	Good
Old Dailly to Green Hill^°	near Old Dailly · South Ayrshire	—	sustained	4684 m	179 m	3.8%	17.1%	Good
Old Hill to Blakeney Hill^°	near Blakeney · Gloucestershire	—	sustained	254 m	40 m	15.9%	20.8%	High
Old Lane	near Scapegoat Hill	—	sustained	523 m	63 m	12.0%	24.6%	High
Old Largs Road	near Greenock · Inverclyde	—	sustained	3251 m	193 m	5.9%	16.3%	High
Old Military Road	near Coire Goibhre · Perth and Kinross	—	stepped	296 m	24 m	8.0%	22.4%	Needs confirmation
Old Paul Hill	near Newlyn · Cornwall	—	sustained	347 m	41 m	11.9%	≈caveated20.0%	Needs confirmation
Old Pool Bank	near Pool Bank	—	sustained	1287 m	109 m	8.4%	22.4%	Good
Old Rake	near Torver · Cumbria	—	sustained	1748 m	127 m	7.3%	22.7%	High
Old Riding Lane	near Booth	—	sustained	1046 m	104 m	10.0%	24.3%	High
Old Road	near Witchery Hole · Worcestershire	—	sustained	1310 m	112 m	8.6%	21.0%	High
Old School Lane	near Tockholes · Lancashire	—	stepped	753 m	50 m	6.6%	22.1%	Good
Old Town Hill	near Ilsington · Devon	—	stepped	974 m	90 m	9.3%	22.5%	Good
Old Walls Hill	near Bishopsteignton · Devon	—	sustained	1480 m	167 m	11.3%	≈caveated22.0%	Needs confirmation
Old Wyche Road	near Lower Wyche · Worcestershire	—	sustained	788 m	91 m	11.5%	24.8%	High
Onen to Pen-y-lan^°	near Onen · Gwent	—	sustained	1489 m	111 m	7.5%	≈caveated27.8%	Needs confirmation
Ordley Lane	near Stanton · Staffordshire	—	sustained	714 m	65 m	9.2%	25.8%	Good
Ostlings Lane	near Bathford · Somerset	National HC¹	stepped	657 m	45 m	6.9%	20.2%	High
Oughtershaw Road	near Oughtershaw · North Yorkshire	—	sustained	2699 m	231 m	8.6%	22.0%	High
Ovenden Wood Road	near Ovenden Wood	—	stepped	1163 m	102 m	8.7%	23.2%	High
Overs Dingle to The Bog^°	near Overs Dingle · Shropshire	—	sustained	3825 m	177 m	4.6%	20.4%	Good
Oxford Down to East Buckland^°	near Heddon Bottom · Devon	—	sustained	1520 m	88 m	5.8%	26.9%	Good
Oxnop Scar	near Muker · North Yorkshire	100 Climbs²	stepped	1453 m	101 m	6.9%	23.8%	Good
Padarn Crescent	near Aberystwyth · Dyfed	sign: 16% (2024)	stepped	221 m	11 m	4.8%	19.3%	High
Paddons Lane	near Teignmouth · Devon	—	stepped	522 m	44 m	8.5%	30.2%	Needs confirmation
Padleigh Hill	near Englishcombe · Somerset	—	sustained	294 m	37 m	12.6%	≈caveated21.3%	Good
Pandy to Pen y Gyrn	near Llanuwchllyn · Gwynedd	—	sustained	992 m	114 m	11.5%	21.8%	Needs confirmation
Pannier Lane	near Carbis Bay · Cornwall	—	stepped	601 m	53 m	8.7%	32.0%	High
Panorama Walk	near Cwrt · Gwynedd	—	stepped	1298 m	89 m	6.9%	≈caveated28.6%	Good
Panorama Walk	near Pateley Bridge · North Yorkshire	—	sustained	838 m	75 m	8.9%	≈caveated20.7%	Good
Panorama Walk	near Llangollen · Clwyd	—	sustained	2851 m	165 m	5.8%	≈caveated28.7%	Good
Pant Du	near Pontfadog · Clwyd	—	sustained	820 m	101 m	12.4%	≈caveated26.9%	Good
Pant Glâs to Bryn-y-gôg^°	near Pant Glâs · Gwynedd	—	stepped	1675 m	103 m	6.2%	20.3%	High
Paradise	near Broseley · Shropshire	—	sustained	237 m	30 m	12.8%	21.2%	Good
Paradise Road	near Boltby · North Yorkshire	—	sustained	1470 m	104 m	7.1%	21.4%	High
Parbrook to Stickleball Hill^°	near Parbrook · Somerset	—	stepped	1900 m	94 m	4.9%	21.2%	High
Parc Road	near Graig Trewyddfa · West Glamorgan	—	sustained	413 m	43 m	10.3%	20.8%	High
Parc-y-rhôs to Mynydd Pencarreg^°	near Lampeter · Dyfed	—	sustained	5901 m	276 m	4.7%	≈caveated19.0%	Needs confirmation
Park Lane	near Elham · Kent	—	sustained	464 m	44 m	9.5%	21.8%	High
Park Mill Lane	near Chulmleigh · Devon	—	stepped	827 m	70 m	8.5%	≈caveated28.7%	Good
Park Rash	near Cam Head · North Yorkshire	National HC¹, 100 Climbs²	sustained	2201 m	228 m	10.4%	≈caveated24.8%	Good
Park Road	near Ferndale · Mid Glamorgan	—	sustained	899 m	76 m	8.5%	25.8%	High
Park Street	near Knowle · Bristol	—	sustained	266 m	36 m	13.7%	22.4%	High
Park Street	near Clydach Vale · Mid Glamorgan	—	stepped	996 m	76 m	7.6%	23.0%	High
Parkinson's Lane	near Cobby Syke · North Yorkshire	—	sustained	318 m	33 m	10.4%	20.9%	High
Partrishow Hill to Partrishow^°	near Cwm Gwent · Gwent	—	sustained	2447 m	154 m	6.3%	≈caveated27.8%	Good
Pattard Water to Exmansworthy^°	near Hartland · Devon	—	stepped	1231 m	67 m	5.4%	≈caveated22.6%	Good
Pea Royd Lane	near Stocksbridge	Tour of Britain⁹, National HC¹	sustained	442 m	68 m	15.3%	≈caveated19.2%	Needs confirmation
Peacock Road	near Hoptonbank · Shropshire	—	sustained	470 m	43 m	9.1%	20.6%	High
Peak Hill Road	near Sidmouth · Devon	—	sustained	1239 m	150 m	12.1%	≈caveated24.0%	Good
Peasland Road	near Watcombe · Devon	—	stepped	591 m	41 m	6.9%	20.2%	High
Peat Lane	near Pateley Bridge · North Yorkshire	—	stepped	3998 m	257 m	6.4%	≈caveated22.5%	Good
Pecks Road	near Rushton Bank · Staffordshire	—	sustained	1736 m	76 m	4.4%	21.1%	High
Peggy's Bank	near Miles Green · Staffordshire	—	stepped	440 m	48 m	10.9%	24.0%	High
Pen Dref	near Harlech · Gwynedd	—	sustained	1548 m	158 m	10.2%	22.0%	Good
Pen Gwern-Llifion to Moel Grugoer^°	near Clwt · Clwyd	—	stepped	1602 m	109 m	6.8%	23.0%	High
Pen-y-Bryn to Foel Gron^°	near Llandegwning · Gwynedd	—	sustained	2302 m	106 m	4.6%	20.8%	Good
Pen-y-Ffridd	near Rhiwlas · Gwynedd	—	sustained	1509 m	154 m	10.2%	17.0%	Good
Pen-y-lan to Llangattock Vibon Avel^°	near Onen · Gwent	—	stepped	677 m	60 m	8.8%	≈caveated26.5%	Good
Pencavo Hill	near Tideford · Cornwall	—	stepped	832 m	60 m	7.2%	23.0%	Good
Pencombe Rocks	near Parracombe · Devon	—	stepped	1654 m	72 m	4.4%	20.5%	Good
Pendine Hill	near Pendine · Dyfed	tag: 20% (2026)	sustained	863 m	88 m	10.2%	19.6%	High
Pengarrock Hill	near Porthallow · Cornwall	—	sustained	1166 m	83 m	7.1%	≈caveated23.7%	Needs confirmation
Penglais Hill	near Aberystwyth · Dyfed	sign: 11% (2026, via OSM)	sustained	1310 m	97 m	7.4%	11.2%	High
Penpoll to Lanteglos Highway^°	near Penpoll · Cornwall	—	sustained	985 m	95 m	9.6%	23.1%	Needs confirmation
Penpont to Pendrift^°	near Penpont · Cornwall	—	sustained	2107 m	112 m	5.3%	26.5%	Needs confirmation
Penrhiw Lane	near Machen · Gwent	—	sustained	835 m	120 m	14.4%	≈caveated22.0%	Good
Penstone to Bradninch^°	near Hele · Devon	—	sustained	2901 m	157 m	5.4%	20.3%	Good
Pentonwarra Point to Crugmeer^°	near Trevone · Cornwall	—	stepped	828 m	57 m	6.8%	20.9%	High
Pentre Grove	near Rhydspence · Herefordshire	—	sustained	3307 m	105 m	3.2%	27.8%	Needs confirmation
Pentre to Moat Hill^°	near Pentre · Powys	—	sustained	4346 m	201 m	4.6%	23.4%	Good
Pentre-Cwm to Marian Cwm	near Cwm · Clwyd	—	sustained	1123 m	96 m	8.6%	20.6%	Good
Pentre-dwfr to Moel y Faen^°	near Pentre-dwfr · Clwyd	—	sustained	1957 m	216 m	11.0%	21.1%	High
Penventinnie Lane	near Treliske · Cornwall	—	sustained	682 m	59 m	8.7%	20.2%	High
Penybryn	near Corwen · Clwyd	—	sustained	395 m	47 m	12.0%	24.5%	Needs confirmation
Penygraig Terrace	near Ynysybwl · Mid Glamorgan	—	sustained	445 m	46 m	10.4%	20.3%	High
Penygraigwen to Llanwonno^°	near Pontypridd · Mid Glamorgan	—	sustained	7613 m	265 m	3.5%	18.8%	Good
Peter Tavy to Cox Tor^°	near Peter Tavy · Devon	—	sustained	1572 m	118 m	7.5%	23.3%	High
Pettfield Hill Road	near Tong Green · Kent	—	stepped	926 m	35 m	3.8%	22.9%	High
Petton to Haddon Hill^°	near Petton · Devon	—	stepped	4730 m	168 m	3.6%	23.3%	Needs confirmation
Phipps Bottom to Yorkley^°	near Yorkley · Gloucestershire	—	sustained	1138 m	108 m	9.5%	23.3%	High
Pillaton to Blunts^°	near Pillaton · Cornwall	—	stepped	4643 m	114 m	2.5%	25.4%	Good
Pippacott to Halsinger^°	near Pippacott · Devon	—	stepped	3069 m	112 m	3.6%	20.5%	Needs confirmation
Pisgah Hill	near Brynteg · Clwyd	—	sustained	371 m	43 m	11.7%	21.8%	Good
Pit Lane	near Thornton	—	sustained	2297 m	177 m	7.7%	20.9%	Good
Plains Lane	near Marsden	—	sustained	442 m	47 m	10.7%	≈caveated22.8%	Good
Plymbridge Road	near Mainstone · Devon	—	sustained	1188 m	79 m	6.6%	≈caveated20.1%	Needs confirmation
Polesteeple Hill	near Biggin Hill · Greater London	—	sustained	365 m	46 m	12.7%	20.2%	High
Polkirt Hill	near Mevagissey · Cornwall	—	sustained	343 m	46 m	13.3%	26.4%	High
Polpeor Island to Lion's Den^°	near Lizard · Cornwall	—	stepped	458 m	34 m	7.4%	≈caveated21.4%	Needs confirmation
Ponsanooth to Trewedna Water^°	near Ponsanooth · Cornwall	—	sustained	981 m	66 m	6.7%	21.2%	Good
Ponthir Road	near Caerllion · Gwent	tag: 20% (2026)	sustained	242 m	17 m	7.0%	12.4%	High
Pool Combe to Ley Hill^°	near Pool Combe · Somerset	—	sustained	675 m	87 m	12.9%	27.5%	Good
Porkellis to Carnmenellis^°	near Porkellis · Cornwall	—	stepped	2683 m	73 m	2.7%	22.1%	High
Porlock to Pittcombe Head^°	near Porlock · Somerset	—	stepped	4392 m	296 m	6.7%	≈caveated19.7%	Good
Port Quin to Trevan Point^°	near Port Quin · Cornwall	—	stepped	1139 m	71 m	6.2%	22.1%	Good
Porthallow to Talland^°	near Carey Park · Cornwall	—	sustained	949 m	120 m	12.6%	≈caveated23.3%	Good
Porthkerris Point to Pol Lawrance^°	near Trenance · Cornwall	—	sustained	550 m	61 m	11.1%	20.4%	High
Porthmeor Hill	near St Ives · Cornwall	—	sustained	263 m	29 m	10.9%	21.5%	High
Portlooe to Talland^°	near Looe · Cornwall	—	stepped	993 m	30 m	3.0%	20.8%	High
Portway	near Upton St Leonards · Gloucestershire	—	stepped	1939 m	142 m	7.3%	21.4%	Needs confirmation
Portway Hill	near Batcombe · Somerset	—	stepped	1173 m	57 m	4.9%	20.2%	High
Post Lane	near Malmsmead · Devon	—	sustained	1315 m	116 m	8.8%	20.5%	Good
Pound Lane	near Llwynderw · Powys	—	sustained	668 m	89 m	13.4%	≈caveated26.2%	Good
Prenol to Pont Bronferiaeth^°	near Pentrefelin · Clwyd	—	stepped	2442 m	128 m	5.2%	≈caveated26.7%	Good
Prenteg to Cwm Ystradllyn	near Prenteg · Gwynedd	—	sustained	2649 m	238 m	9.0%	24.7%	Good
Primrose Hill	near Llanbadarn Fawr · Dyfed	tag: 12% (2026)	sustained	1100 m	96 m	8.8%	17.1%	Good
Primrose Street	near Keighley	—	sustained	201 m	31 m	15.6%	26.4%	High
Prior Avenue	near Richmond · North Yorkshire	—	stepped	617 m	37 m	6.0%	22.2%	High
Priston Lane	near Priston · Somerset	—	sustained	1775 m	92 m	5.2%	25.6%	Good
Prospect Place	near Bradway Bank	—	sustained	239 m	33 m	13.7%	20.4%	High
Puddington Bottom to Poughill^°	near Puddington · Devon	—	stepped	2135 m	85 m	4.0%	22.7%	Good
Puddington to Pennymoor^°	near Puddington · Devon	—	stepped	3048 m	37 m	1.2%	26.7%	Needs confirmation
Pudsey Road	near Cornholme	—	sustained	2035 m	208 m	10.2%	21.3%	Needs confirmation
Putley Green to Woolhope Cockshoot^°	near Putley Green · Herefordshire	—	sustained	2065 m	112 m	5.4%	25.2%	High
Putley to Woolhope Cockshoot^°	near Putley · Herefordshire	—	stepped	1218 m	99 m	8.1%	25.2%	High
Pwllglas to Clocaenog^°	near Pwll-glâs · Clwyd	—	sustained	4129 m	164 m	4.0%	23.4%	Good
Radford Street	near Darwen · Lancashire	—	sustained	277 m	30 m	11.0%	20.1%	High
Ramsden Street	near Ovenden Wood	—	sustained	958 m	84 m	8.8%	20.1%	High
Rangeley Road	near Woodland View	—	sustained	470 m	73 m	15.5%	20.6%	High
Raw Bank	near Langthwaite · North Yorkshire	—	sustained	674 m	55 m	8.1%	23.9%	Good
Rectory Lane	near Brasted · Kent	National HC¹	stepped	2796 m	143 m	5.1%	≈caveated18.4%	Needs confirmation
Red Lane	near Milton · Derbyshire	—	stepped	731 m	47 m	6.4%	20.5%	Good
Red Way	near Little Fryup Dale · North Yorkshire	—	sustained	1060 m	67 m	6.3%	21.7%	High
Reddings Lane	near Cinderford · Gloucestershire	—	sustained	571 m	60 m	10.6%	21.4%	High
Redesmouth to Woodcock Hill^°	near Redesmouth · Northumberland	—	sustained	2389 m	117 m	4.9%	≈caveated22.1%	Good
Redhouse Lane	near Ryeford · Gloucestershire	—	sustained	2109 m	151 m	7.2%	22.9%	High
Redpost to Middle Taphouse^°	near Redpost · Cornwall	—	stepped	1784 m	132 m	7.4%	≈caveated26.7%	Needs confirmation
Rerwick Road	near Bigton · Shetland Islands	—	sustained	5778 m	158 m	2.7%	16.2%	Good
Restronguet Hill	near Harcourt · Cornwall	—	sustained	632 m	73 m	11.5%	20.5%	Needs confirmation
Reybridge to Nocketts Hill^°	near Reybridge · Wiltshire	—	sustained	1715 m	131 m	7.6%	21.1%	High
Reynolds Lane	near Wordley Dingle · Worcestershire	—	sustained	901 m	63 m	7.0%	22.2%	High
Rhigos Road	near Treherbert · Mid Glamorgan	100 Climbs²	sustained	6004 m	305 m	5.1%	8.6%	High
Rhiw Fain	near Pentre-llyn · Dyfed	—	sustained	1176 m	132 m	11.2%	22.2%	Good
Rhiw Road	near Cwm-twrch Uchaf · Powys	—	stepped	2803 m	190 m	6.8%	≈caveated26.2%	Needs confirmation
Rhiw Syr Dafydd	near Y Coed Duon · Gwent	—	sustained	125 m	26 m	20.6%	≈caveated29.6%	Good
Rhos-y-gwaliau to Is-Afon^°	near Y Bala · Gwynedd	—	sustained	2365 m	132 m	5.6%	23.2%	Good
Rhyd-y-foel to Coed Bettws^°	near Rhyd-y-foel · Clwyd	—	sustained	1266 m	134 m	10.6%	≈caveated27.5%	Good
Rhyd-y-saint to Bryn-têg^°	near Rhyd-y-saint · Dyfed	—	sustained	1531 m	52 m	3.4%	23.9%	High
Riber Road	near Matlock · Derbyshire	—	sustained	640 m	87 m	13.7%	25.1%	High
Richard Street	near Pontycymer · Mid Glamorgan	—	sustained	528 m	50 m	9.4%	20.5%	Good
Ridehalgh Lane	near Thursden · Lancashire	—	stepped	551 m	49 m	8.9%	26.9%	Good
Ridge Hill	near Berrynarbor · Devon	—	sustained	859 m	97 m	11.3%	21.3%	High
Ridge Top Lane	near Hayfield · Derbyshire	—	sustained	494 m	56 m	11.3%	25.6%	High
Ripley Bank	near Pateley Bridge · North Yorkshire	—	sustained	1886 m	110 m	5.8%	21.1%	High
Ripponden New Bank	near Ripponden	—	sustained	1007 m	130 m	12.9%	21.6%	Needs confirmation
Ripponden Old Lane	near Ripponden	—	stepped	2246 m	156 m	6.9%	20.3%	Needs confirmation
Rishworth Mill Lane	near Rishworth	—	sustained	1621 m	145 m	9.0%	20.5%	Good
Roach Road	near Upper Hulme · Staffordshire	—	sustained	714 m	53 m	7.5%	20.2%	High
Roads Hill	near Catherington · Hampshire	—	stepped	820 m	43 m	5.3%	20.8%	High
Rock Dingle to Flannog Dingle^°	near Rock Dingle · Shropshire	—	sustained	1260 m	66 m	5.3%	20.8%	High
Rock House Lane	near Maidencombe · Devon	—	sustained	1029 m	119 m	11.5%	≈caveated27.6%	Needs confirmation
Rock Lane	near West Bagborough · Somerset	—	sustained	785 m	64 m	8.1%	21.5%	High
Rockcliffe Avenue	near Shipley	—	stepped	676 m	45 m	6.7%	24.2%	High
Roman Reach	near Caerllion · Gwent	tag: 20% (2026)	sustained	396 m	20 m	5.1%	10.1%	High
Roman Way	near Caerllion · Gwent	tag: 30% (2021)	sustained	566 m	22 m	3.8%	12.1%	High
Roncombe Hill	near Cotford · Devon	—	stepped	1292 m	121 m	9.4%	22.8%	Needs confirmation
Ronhill Lane	near Cleobury Mortimer · Shropshire	—	stepped	477 m	43 m	9.0%	20.1%	Good
Rooks Hill	near Underriver · Kent	—	stepped	1278 m	98 m	7.7%	24.6%	Needs confirmation
Rooksmoor Hill	near Woodchester · Gloucestershire	—	sustained	632 m	94 m	14.9%	26.5%	Good
Rooksmoor to Kingscourt^°	near Woodchester · Gloucestershire	—	sustained	2144 m	118 m	5.5%	24.4%	Good
Rooley Moor Road	near Cowpe · Lancashire	—	sustained	794 m	86 m	10.9%	20.7%	High
Room Hill Road	near Hawkridge · Somerset	—	stepped	2490 m	134 m	5.4%	21.7%	High
Rorrington to Hemford^°	near Rorrington · Shropshire	—	stepped	3946 m	190 m	4.8%	≈caveated20.7%	Good
Rose Grove Lane	near Sowerby Bridge	—	sustained	1637 m	165 m	10.1%	≈caveated27.2%	Good
Rose Hill	near Abertawe · West Glamorgan	—	sustained	488 m	56 m	11.4%	20.2%	Good
Rosedale Chimney Bank	near Rosedale Abbey · North Yorkshire	100 Climbs², National HC¹, Wikipedia³, BikeRadar 7⁸	sustained	1107 m	149 m	13.4%	26.6%	High
Rosemundy	near St Agnes · Cornwall	—	sustained	1608 m	98 m	6.1%	20.3%	High
Rosenannon to Tregonetha^°	near Rosenannon · Cornwall	—	stepped	1539 m	70 m	4.5%	≈caveated20.7%	Needs confirmation
Rotten Row Hill	near Tutts Clump · Berkshire	—	sustained	293 m	34 m	11.6%	21.5%	Good
Roundball Lane	near Littletown · Devon	—	sustained	1322 m	97 m	7.3%	22.9%	Good
Route Des Alpes	near Gwaelod-y-garth · South Glamorgan	sign: 16% (2026)	stepped	2169 m	148 m	6.8%	≈caveated23.2%	Good
Rowhorne Road	near Nadderwater · Devon	—	sustained	3798 m	156 m	4.1%	22.1%	Needs confirmation
Rowsley Bar^°	near Rowsley · Derbyshire	National HC¹, 100 Climbs²	sustained	1006 m	134 m	13.3%	≈caveated22.6%	Good
Roxby Lane	near Staithes · North Yorkshire	—	sustained	3117 m	184 m	5.9%	20.3%	Needs confirmation
Ruebury Lane	near Osmotherley · North Yorkshire	—	stepped	286 m	21 m	7.5%	20.0%	High
Rushock	near Kington · Herefordshire	—	sustained	1698 m	103 m	6.1%	25.6%	High
Ruthin Road	near Mold · Clwyd	—	sustained	2228 m	111 m	5.0%	11.3%	Good
Rutts Lane	near Littleton Panell · Wiltshire	—	sustained	736 m	70 m	9.4%	20.4%	High
Rye Hill	near Ponsanooth · Cornwall	—	sustained	333 m	41 m	12.4%	21.6%	Needs confirmation
Sabden Road	near Padiham · Lancashire	—	sustained	1560 m	108 m	6.9%	20.3%	Good
Saintbury Hill	near Saintbury · Gloucestershire	—	sustained	2340 m	190 m	8.1%	≈caveated20.6%	Needs confirmation
Salcombe Hill Road	near Sidmouth · Devon	100 Climbs²	sustained	825 m	110 m	13.3%	≈caveated18.5%	Good
Saltstone to Bridwill Point^°	near Widemouth Bay · Cornwall	—	sustained	1086 m	86 m	7.9%	20.1%	Needs confirmation
Sampford Spiney to Ingra Tor^°	near Sampford Spiney · Devon	—	sustained	900 m	112 m	12.5%	20.2%	Good
Sanctuary Lane	near Brompton Regis · Somerset	—	sustained	1126 m	109 m	9.6%	22.3%	High
Sand Hill	near Carey Park · Cornwall	—	sustained	599 m	81 m	13.6%	21.8%	High
Sandbeck to Coalpit Hill^°	near Richmond · North Yorkshire	—	sustained	3585 m	126 m	3.5%	20.3%	Good
Sandford to Newbuildings^°	near Sandford · Devon	—	sustained	2572 m	93 m	3.6%	22.3%	Needs confirmation
Sapey Bridge to Brockhampton Dingle^°	near Meadow Green · Herefordshire	—	stepped	4425 m	115 m	2.6%	20.9%	Needs confirmation
Sarn Mellteyrn to Mynydd Rhiw^°	near Sarn Mellteyrn · Gwynedd	—	sustained	1793 m	151 m	8.4%	21.4%	Needs confirmation
Savile Road	near Hebden Bridge	—	sustained	2705 m	216 m	8.0%	24.2%	Needs confirmation
Sawood Lane	near Leeming	—	sustained	493 m	49 m	9.8%	20.5%	High
Scar Hole Lane	near Jackson Bridge	National HC¹, 100 Climbs²	sustained	1434 m	153 m	10.7%	20.2%	High
Scar Lane	near Scotland Bank · Herefordshire	—	stepped	1617 m	115 m	7.1%	22.0%	Needs confirmation
School Road	near Bowden · Devon	—	sustained	826 m	83 m	10.0%	≈caveated26.9%	Good
School Street	near Maerdy · Mid Glamorgan	—	sustained	497 m	53 m	10.7%	20.1%	High
Scout Road	near Horrocks Fold	—	sustained	1669 m	78 m	4.7%	21.1%	High
Scout Road	near Scout · Lancashire	—	sustained	198 m	24 m	12.0%	22.4%	High
Scutterthill Bank	near Westgate · County Durham	—	sustained	3345 m	250 m	7.5%	23.9%	High
Seaside Hill	near Combe Martin · Devon	—	sustained	605 m	47 m	7.8%	21.4%	High
Seller's Wood Hill	near Branscombe · Devon	—	stepped	1914 m	118 m	6.2%	20.9%	Good
Sennybridge to Yr Allt^°	near Sennybridge · Powys	—	sustained	1412 m	56 m	3.9%	≈caveated29.5%	Good
Shakespeare Road	near Dover · Kent	—	stepped	444 m	38 m	8.6%	26.8%	High
Shatton Lane	near Shatton · Derbyshire	—	sustained	1108 m	149 m	13.5%	22.1%	High
Shaw Hill to Grain Hill^°	near Ashkirk · Scottish Borders	—	sustained	3588 m	157 m	4.4%	≈caveated14.8%	Good
Shawclose Lane	near Hawnby · North Yorkshire	—	stepped	1366 m	89 m	6.5%	21.0%	High
Sheepstor to Sheeps Tor^°	near Sheepstor · Devon	—	sustained	840 m	68 m	8.1%	21.1%	Good
Sheepwalks Lane	near Compton · Staffordshire	—	sustained	3326 m	137 m	4.1%	23.4%	High
Shell Lane	near Templeton · Devon	—	stepped	1902 m	90 m	4.7%	21.1%	Good
Shelly Road	near South Zeal · Devon	—	sustained	972 m	80 m	8.2%	22.7%	Good
Shepherds Lane	near Teignmouth · Devon	—	sustained	2046 m	216 m	10.6%	≈caveated18.3%	Good
Shillingford to Quartley Hill^°	near Shillingford · Devon	—	sustained	2835 m	176 m	6.2%	21.4%	Needs confirmation
Shirebrook Road	near Heeley	—	sustained	468 m	36 m	7.6%	20.3%	High
Shobrooke to Uppincott^°	near Shobrooke · Devon	—	sustained	1763 m	71 m	4.0%	23.9%	Needs confirmation
Shop Hill	near Fylingthorpe · North Yorkshire	—	sustained	1855 m	131 m	7.1%	23.3%	High
Shute Lane	near Pensilva · Cornwall	—	sustained	2018 m	108 m	5.4%	22.4%	Needs confirmation
Side Gates Road	near Knott Head · Cumbria	—	sustained	1168 m	89 m	7.6%	22.0%	High
Side Gates Road	near Oxendale · Cumbria	—	sustained	1195 m	125 m	10.5%	20.5%	High
Sigford to Haytor Vale^°	near Sigford · Devon	—	sustained	2393 m	120 m	5.0%	20.4%	Needs confirmation
Sigget Lane	near Todmorden	—	sustained	1680 m	168 m	10.0%	22.1%	Good
Signpost Lane	near East Village · Devon	—	sustained	1019 m	80 m	7.9%	23.1%	Good
Silver Hill	near Pateley Bridge · North Yorkshire	—	sustained	2434 m	194 m	8.0%	22.5%	Good
Silver Street	near Pontywaun · Gwent	—	sustained	438 m	43 m	9.9%	21.1%	High
Silver Street to Dommett^°	near Silver Street · Somerset	—	sustained	2765 m	142 m	5.1%	20.8%	Good
Skew Hill	near Birley Edge	—	stepped	1032 m	52 m	5.0%	20.5%	High
Skirhead Lane	near Combe Martin · Devon	—	sustained	819 m	93 m	11.3%	21.3%	High
Slacks Lane	near Sedbergh · Cumbria	—	sustained	1350 m	85 m	6.3%	20.2%	High
Slade Hill	near Lustleigh · Devon	—	stepped	2740 m	156 m	5.7%	20.1%	High
Slade Lane	near Stockbridge	—	sustained	376 m	43 m	11.5%	≈caveated20.5%	Good
Sled Gates	near Fylingthorpe · North Yorkshire	—	sustained	1390 m	148 m	10.7%	20.4%	High
Slinn Street	near Upperthorpe	—	sustained	1207 m	112 m	9.3%	20.0%	High
Smith's Lane	near Egton Bridge · North Yorkshire	—	stepped	7636 m	280 m	3.7%	22.1%	High
Smithy Lane	near Hey · Lancashire	—	sustained	983 m	58 m	5.9%	22.6%	Good
Snake Road	near Glossop · Derbyshire	—	sustained	5105 m	325 m	6.4%	8.2%	High
Snakelake Hill	near Bruton · Somerset	—	stepped	1408 m	62 m	4.4%	≈caveated31.2%	Good
Snow Hill	near Bath · Somerset	—	sustained	576 m	64 m	11.1%	24.5%	High
Soutergate to Out Park^°	near Soutergate · Cumbria	—	sustained	2075 m	235 m	11.3%	≈caveated24.9%	Good
South Dean Lane	near Trentishoe · Devon	—	sustained	2491 m	197 m	7.9%	≈caveated20.6%	Good
South Woodchester to Littleworth^°	near Woodchester · Gloucestershire	—	sustained	1514 m	154 m	10.1%	22.4%	High
Spark Bridge to Broughton Beck^°	near Spark Bridge · Cumbria	—	sustained	2339 m	132 m	5.7%	20.1%	Good
Sparrow Lane	near Withypool · Somerset	—	stepped	2198 m	121 m	5.5%	22.1%	Needs confirmation
Speel Bank to Barnsley Hill^°	near Little Arrad · Cumbria	—	stepped	1920 m	132 m	6.9%	20.2%	Good
Spencer Lane	near Hebden Bridge	—	sustained	1236 m	132 m	10.7%	23.8%	High
Spillmans Pitch	near Stroud · Gloucestershire	—	stepped	546 m	43 m	7.9%	≈caveated27.1%	Good
Spirelake Hill	near Oldborough · Devon	—	stepped	2087 m	47 m	2.2%	23.1%	Needs confirmation
Spout Lane	near Drybrook · Gloucestershire	—	sustained	672 m	57 m	8.5%	21.9%	High
Spring Lane	near East Dundry · Somerset	—	sustained	619 m	62 m	10.1%	20.9%	High
Springfield Road	near Maerdy · Mid Glamorgan	—	sustained	410 m	29 m	7.2%	20.0%	High
Squire's Lane	near Seaton · Devon	—	sustained	182 m	35 m	19.0%	≈caveated27.0%	Needs confirmation
St Ann's Road	near Great Malvern · Worcestershire	—	sustained	824 m	106 m	12.8%	21.3%	Needs confirmation
St Anthony-in-Meneage to Manaccan^°	near St Anthony-in-Meneage · Cornwall	—	stepped	2101 m	74 m	3.5%	21.4%	High
St Blazey to Kilhallon^°	near St Blazey · Cornwall	—	sustained	503 m	33 m	6.6%	20.4%	High
St Clement to Truro^°	near St Clement · Cornwall	—	sustained	793 m	65 m	8.2%	20.1%	High
St Ishmael to Llansaint^°	near St Ishmael · Dyfed	—	sustained	1674 m	116 m	6.9%	20.1%	Good
St Johns Lane	near St John · Cornwall	—	sustained	1139 m	106 m	9.3%	25.3%	Needs confirmation
St Michael Caerhays to Trevarrick^°	near St Michael Caerhays · Cornwall	—	sustained	3238 m	67 m	2.1%	22.1%	Good
St. Lawrence Road	near Dunmere · Cornwall	—	stepped	1156 m	50 m	4.3%	24.6%	High
St. Saviour's Hill	near Fowey · Cornwall	—	stepped	336 m	28 m	8.5%	24.6%	Good
Staddon Road	near Mudly Bottom · Devon	—	stepped	1188 m	93 m	7.8%	≈caveated25.2%	Good
Staker's Cross Lane	near Hewish · Somerset	—	sustained	1173 m	93 m	7.9%	24.3%	Good
Stan Lane	near West Peckham · Kent	—	sustained	954 m	77 m	8.1%	20.8%	Needs confirmation
Stang Lane	near West Down · Devon	—	sustained	1742 m	94 m	5.4%	22.0%	High
Stanley Hill	near Totterdown · Bristol	—	stepped	469 m	39 m	8.2%	20.3%	High
Stanley Lane	near Bridgnorth · Shropshire	—	sustained	4474 m	85 m	1.9%	23.2%	Good
Stansfield Hall Road	near Todmorden	—	sustained	2417 m	235 m	9.7%	≈caveated25.1%	Needs confirmation
Stantonhall Lane	near Congreave · Derbyshire	—	stepped	1336 m	92 m	6.9%	24.4%	High
Start Lane	near Kettleshulme · Cheshire	—	stepped	864 m	70 m	8.1%	20.7%	Needs confirmation
Station Hill	near Brixham · Devon	—	sustained	438 m	38 m	8.6%	21.0%	Good
Station Lane	near Lower Wellhouse	—	sustained	519 m	64 m	12.4%	≈caveated21.9%	Good
Station Road	near Maesygwartha · Gwent	—	sustained	1988 m	221 m	11.1%	≈caveated26.4%	Good
Staups Lane	near Stump Cross	—	sustained	1726 m	128 m	7.4%	20.0%	Good
Stentiford Hill Road	near Torquay · Devon	—	sustained	444 m	53 m	12.0%	23.6%	High
Stickle Path	near Clayhanger · Devon	—	stepped	996 m	66 m	6.6%	30.0%	Needs confirmation
Stickleball Lane	near Steanbow · Somerset	—	stepped	1748 m	108 m	6.2%	27.9%	Good
Stile Way	near Pleck · Dorset	—	sustained	1790 m	118 m	6.6%	23.7%	Needs confirmation
Stock Ghyll Lane	near Ambleside · Cumbria	—	sustained	914 m	90 m	9.9%	≈caveated26.3%	Needs confirmation
Stockleigh Pomeroy to Uppincott^°	near Stockleigh Pomeroy · Devon	—	sustained	1370 m	115 m	8.4%	21.4%	Needs confirmation
Stocks Lane	near Luddenden	—	sustained	2088 m	222 m	10.6%	17.0%	Good
Stockwell Lane	near Woodmancote · Gloucestershire	—	stepped	1665 m	145 m	8.7%	23.6%	High
Stogumber to Higher Vexford^°	near Stogumber · Somerset	—	sustained	1673 m	35 m	2.1%	21.0%	Good
Stone Ash Lane	near Langham Hill Bottom · Devon	—	stepped	2745 m	70 m	2.5%	20.2%	High
Stone House Lane	near Winter Hill · Berkshire	—	stepped	1020 m	65 m	6.4%	≈caveated21.6%	Needs confirmation
Stone Lane	near Bickleigh · Devon	—	sustained	2216 m	149 m	6.7%	20.5%	High
Stone Lane	near Exton · Somerset	—	stepped	3222 m	213 m	6.6%	≈caveated20.1%	Good
Stoney Lane	near Bradninch · Devon	—	stepped	1045 m	86 m	8.2%	≈caveated27.6%	Needs confirmation
Stoney Loanin	near Cushendall · County Antrim	—	sustained	157 m	21 m	13.7%	26.7%	Needs confirmation
Stoneydale	near Oldfurnace · Staffordshire	—	stepped	359 m	12 m	3.4%	20.2%	Good
Stoupe Bank	near Jet Holes · North Yorkshire	—	stepped	770 m	82 m	10.7%	27.1%	High
Stowford to Chittlehampton^°	near Stowford · Devon	—	stepped	3163 m	77 m	2.4%	27.3%	Needs confirmation
Strada Florida Trailhead (Southernmost) to Pen y Cnwc^°	near Coed Nant-yr-hwch · Powys	—	stepped	2113 m	160 m	7.6%	22.3%	High
Strait Lane	near Abbeystead · Lancashire	—	stepped	381 m	38 m	9.9%	25.8%	High
Streatley Hill	near Streatley · Berkshire	National HC¹, 100 Climbs²	sustained	769 m	96 m	12.4%	≈caveated19.1%	Good
Studdon Dean to Holms Hill^°	near Studdon Dean · Northumberland	—	sustained	1645 m	101 m	6.1%	20.7%	Good
Studland to Glebeland Estate^°	near Studland · Dorset	—	stepped	989 m	60 m	6.1%	21.5%	High
Styes Lane	near Sowerby Bridge	—	sustained	1244 m	127 m	10.2%	21.1%	High
Sunningvale Avenue	near Biggin Hill · Greater London	—	sustained	247 m	31 m	12.7%	27.2%	High
Sunny Bank	near Aberhonddu · Powys	—	sustained	451 m	39 m	8.6%	23.1%	High
Sunny Bank Lane	near Cragg Vale	—	sustained	588 m	84 m	14.4%	30.3%	Needs confirmation
Susanna Hill to Brow Moor	near Peter White Cliff · North Yorkshire	—	sustained	1691 m	138 m	8.2%	20.3%	Good
Sutton Bank	near Happy Valley · North Yorkshire	—	sustained	1574 m	175 m	11.1%	20.9%	High
Sutton-in-Craven to Lumb Clough^°	near Sutton-in-Craven · North Yorkshire	—	sustained	1351 m	144 m	10.7%	21.2%	Needs confirmation
Swain's Lane	near Dartmouth Park · Greater London	100 Climbs²	sustained	823 m	67 m	8.1%	≈caveated16.6%	Good
Swanaford Road	near Dunsford · Devon	—	sustained	372 m	37 m	9.9%	22.5%	High
Swansea Road	near Clwydyfagwyr · Mid Glamorgan	—	sustained	1815 m	80 m	4.4%	22.3%	High
Swimbridge to Kerscott^°	near Swimbridge · Devon	—	stepped	2028 m	53 m	2.6%	20.9%	Good
Tacker Street to Brendon Hills^°	near Roadwater · Somerset	—	sustained	4767 m	316 m	6.6%	≈caveated23.4%	Good
Tadwick Lane	near Upper Swainswick · Somerset	—	stepped	498 m	38 m	7.6%	20.1%	High
Tal-y-bont to Pen-y-gaer^°	near Tal-y-bont · Clwyd	—	sustained	3381 m	335 m	9.9%	23.6%	Needs confirmation
Tan Hill	near Keld · North Yorkshire	100 Climbs²	sustained	6040 m	204 m	3.4%	≈caveated20.3%	Good
Tan y Fron to Clwt^°	near Tan-y-fron · Clwyd	—	sustained	1331 m	84 m	6.3%	22.0%	Good
Tan Y Lan Road	near Bae Colwyn · Clwyd	—	sustained	531 m	53 m	9.9%	20.8%	Good
Tan Yr Allt Avenue	near Mochdre · Clwyd	—	stepped	611 m	58 m	9.5%	23.0%	High
Tanners Street	near Ramsbottom	—	sustained	781 m	81 m	10.3%	≈caveated24.0%	Needs confirmation
Tarrington to Seager Hill^°	near Tarrington · Herefordshire	—	sustained	937 m	79 m	8.4%	22.8%	High
Teign Village to Hennock^°	near Teign Village · Devon	—	sustained	1893 m	152 m	8.0%	23.4%	Good
Terhill Lane	near Terhill · Somerset	—	sustained	1553 m	169 m	10.9%	25.2%	Good
Terrace Hill^°	near Belvoir · Leicestershire	100 Climbs²	stepped	1900 m	57 m	3.0%	11.7%	High
The Batch	near Butcombe · Somerset	—	sustained	462 m	42 m	9.2%	22.4%	High
The Braes to Hill of Findon^°	near Crovie · Aberdeenshire	—	sustained	2186 m	155 m	7.1%	22.7%	High
The Broadway	near Dursley · Gloucestershire	—	sustained	749 m	108 m	14.4%	20.7%	High
The Brune	near Channerwick · Shetland Islands	—	sustained	257 m	36 m	14.2%	22.1%	High
The Burway	near Church Stretton · Shropshire	National HC¹, 100 Climbs²	sustained	3131 m	267 m	8.5%	18.6%	High
The Conduit	near Trefaldwyn · Powys	—	stepped	743 m	72 m	9.6%	27.5%	Needs confirmation
The Earl's Drive	near Kingsand · Cornwall	—	sustained	1031 m	92 m	8.9%	23.2%	Needs confirmation
The Greenway	near Heightington · Worcestershire	—	sustained	1559 m	39 m	2.5%	21.7%	High
The Hendre to Pen-y-lan^°	near The Hendre · Gwent	—	sustained	2447 m	102 m	4.2%	≈caveated26.5%	Needs confirmation
The Hill to Woodtown^°	near Weare Giffard · Devon	—	stepped	4302 m	145 m	3.4%	20.9%	Good
The Hollow	near Dunkerton · Somerset	—	sustained	923 m	87 m	9.4%	23.7%	Needs confirmation
The Knapp	near Minchinhampton · Gloucestershire	—	sustained	514 m	52 m	10.0%	≈caveated26.7%	Good
The Raikes	near Wilsill · North Yorkshire	—	stepped	928 m	73 m	7.8%	20.0%	High
The Ross	near Cordon · North Ayrshire	—	sustained	2255 m	213 m	9.5%	≈caveated14.3%	Needs confirmation
The Struggle	near Ambleside · Cumbria	—	sustained	4072 m	328 m	8.1%	23.2%	High
The Struggle (Kirkstone Road)	near Ambleside · Cumbria	100 Climbs², National HC¹	sustained	1287 m	157 m	12.2%	23.2%	Good
The Walk	near Campbeltown · Argyll and Bute	—	stepped	191 m	24 m	12.6%	≈caveated26.3%	Good
The Wychough	near Lower Wych · Clwyd	—	stepped	1583 m	45 m	2.9%	24.1%	Needs confirmation
Thick Hollins Road	near Meltham	—	stepped	6282 m	284 m	4.5%	≈caveated16.1%	Good
Thomas Street	near Tonypandy · Mid Glamorgan	—	sustained	414 m	38 m	9.2%	22.2%	High
Thorn Wath Lane	near Church Houses · North Yorkshire	—	sustained	678 m	79 m	11.7%	23.1%	Good
Thorne Lane	near Hoe Combe · Somerset	—	sustained	975 m	68 m	6.9%	≈caveated23.0%	Needs confirmation
Thornton Hill	near Exeter · Devon	—	sustained	414 m	26 m	6.3%	20.2%	Good
Three Gates to Ramshorn Hill^°	near Three Gates · Dorset	—	stepped	3528 m	127 m	3.6%	20.9%	Good
Thrussendale Road	near Acklam · North Yorkshire	—	sustained	964 m	95 m	9.9%	20.1%	High
Thurnham Lane	near Thurnham · Kent	—	sustained	1743 m	123 m	7.1%	20.8%	Needs confirmation
Thursden to Birkin Clough^°	near Thursden · Lancashire	—	sustained	1569 m	135 m	8.6%	21.0%	High
Tick Lane	near Doddiscombsleigh · Devon	—	sustained	1120 m	97 m	8.6%	21.5%	High
Tideford to Hay Lake Bottom^°	near Tideford · Cornwall	—	stepped	1410 m	92 m	6.5%	24.4%	Good
Tinker Lane	near Woodland View	—	sustained	1034 m	138 m	13.4%	20.6%	High
Tinker's Castle Road	near Upper Aston · Shropshire	—	stepped	987 m	41 m	4.1%	20.5%	Good
Tockholes Road	near Darwen · Lancashire	—	sustained	818 m	58 m	7.1%	25.9%	High
Tolcarne to St Day^°	near Carharrack · Cornwall	—	stepped	364 m	35 m	9.5%	22.2%	Needs confirmation
Tongue Gate Hill	near Romansleigh · Devon	—	stepped	1506 m	113 m	7.5%	20.1%	Good
Torr Dubh to Glenmanuilt Hill^°	near Glenmanuilt Glen · Argyll and Bute	—	sustained	939 m	93 m	9.9%	20.5%	Needs confirmation
Torre to Beggearn Huish^°	near Washford · Somerset	—	sustained	1493 m	99 m	6.6%	27.4%	High
Totnes Down Hill	near Totnes · Devon	—	sustained	1294 m	142 m	11.0%	≈caveated20.9%	Needs confirmation
Tower Street	near Launceston · Cornwall	—	sustained	501 m	57 m	11.5%	20.2%	High
Townend to Sparrowpit^°	near Chapel-en-le-Frith · Derbyshire	—	sustained	3149 m	195 m	6.2%	20.1%	High
Toy's Hill	near Four Elms · Kent	100 Climbs²	sustained	2282 m	161 m	7.0%	≈caveated23.5%	Good
Tracebridge to Beacon Hill^°	near Tracebridge · Somerset	—	stepped	611 m	55 m	9.1%	≈caveated30.3%	Needs confirmation
Trallong to Cwm Brynych^°	near Cwm Camlais · Powys	—	sustained	4833 m	160 m	3.3%	24.7%	Needs confirmation
Trebarwith Strand to Delabole^°	near Trebarwith Strand · Cornwall	—	sustained	2868 m	204 m	7.1%	25.4%	Good
Trecangate to Bury Down^°	near Trecangate · Cornwall	—	sustained	1595 m	95 m	6.0%	21.4%	Good
Tredegar Avenue	near Llanharan · Mid Glamorgan	tag: 20% (2026)	sustained	228 m	21 m	9.4%	16.6%	High
Tref-y-Clawdd to Garth Hill^°	near Tref-y-Clawdd · Powys	—	stepped	1316 m	90 m	6.9%	≈caveated21.9%	Good
Trefanny Hill to Bury Down^°	near Pendriscott · Cornwall	—	stepped	2156 m	127 m	5.9%	21.6%	Good
Treharris Mountain Road	near Treharris · Mid Glamorgan	—	sustained	3562 m	240 m	6.7%	22.0%	High
Treknow Lane	near Trelake · Cornwall	—	sustained	392 m	43 m	10.9%	25.4%	Good
Tremail to Trevivian^°	near Tremail · Cornwall	—	sustained	1545 m	53 m	3.4%	22.4%	Needs confirmation
Trenoweth Hill to Roskruge Beacon^°	near Porthallow · Cornwall	—	stepped	1808 m	99 m	5.5%	24.6%	Needs confirmation
Trentishoe Lane	near Trentishoe · Devon	—	stepped	2386 m	197 m	8.3%	≈caveated22.4%	Good
Trevarrack to Treneere^°	near Trevarrack · Cornwall	—	sustained	1392 m	69 m	5.0%	15.2%	Good
Trevelmond Lane	near Trevelmond · Cornwall	—	stepped	1350 m	60 m	4.4%	≈caveated21.3%	Good
Trewarveneth Street	near Newlyn · Cornwall	—	sustained	774 m	100 m	12.9%	≈caveated22.2%	Good
Trewethern to St Endellion^°	near Chapel Amble · Cornwall	—	stepped	2684 m	97 m	3.6%	23.0%	Good
Trewey Hill	near Trewey · Cornwall	—	stepped	1997 m	107 m	5.3%	20.4%	High
Trewey to Trendrine Hill^°	near Trewey · Cornwall	—	sustained	1812 m	93 m	5.1%	20.4%	High
Trewidland to Duloe^°	near Trewidland · Cornwall	—	stepped	1596 m	113 m	7.1%	22.4%	High
Trewidland to Wringworthy^°	near Trewidland · Cornwall	—	stepped	2729 m	57 m	2.1%	23.5%	Good
Trewoodloe to Golberdon^°	near Golberdon · Cornwall	—	sustained	1263 m	67 m	5.3%	20.8%	Good
Treworlas to Spires Point^°	near Treworlas · Cornwall	—	stepped	516 m	48 m	9.3%	≈caveated23.1%	Good
Treyford to Treyford Hill^°	near Treyford · West Sussex	—	sustained	869 m	87 m	10.0%	26.0%	High
Trinity View	near Caerllion · Gwent	tag: 40% (2021)	sustained	602 m	80 m	13.3%	≈caveated22.9%	Good
Troed-y-Rhiw Road	near Wattsville · Gwent	—	stepped	2603 m	224 m	8.6%	≈caveated26.3%	Good
Troedyrhiw Road	near Porth · Mid Glamorgan	—	sustained	509 m	69 m	13.5%	20.3%	High
Trooper Lane	near Halifax	BikeRadar 7⁸	sustained	813 m	137 m	16.9%	≈caveated25.7%	Good
Trough Road	near Parrack Clough · Lancashire	100 Climbs²	sustained	1264 m	106 m	8.4%	17.3%	High
Turners Lane	near Whitehaven · Shropshire	—	sustained	591 m	53 m	9.0%	20.1%	High
Turnhole Clough to Smithy Clough^°	near Turnhole Clough · Lancashire	—	sustained	995 m	94 m	9.5%	≈caveated24.9%	Good
Twitchen Lane	near Knightacott · Devon	—	stepped	1950 m	115 m	5.9%	21.6%	High
Twitchen to Round Hill^°	near Twitchen · Devon	—	sustained	3498 m	147 m	4.2%	21.5%	Needs confirmation
Twitchen to Round Hill^°	near Twitchen · Devon	—	sustained	1702 m	163 m	9.6%	21.5%	Needs confirmation
Twtil	near Harlech · Gwynedd	tag: 25% (2026)	sustained	352 m	50 m	14.1%	21.5%	Good
Twyn-Garreg-Wen to Cwm Crew^°	near Nant-ddu · Powys	—	sustained	1953 m	78 m	4.0%	10.1%	High
Ty Canol Lane	near Machen · Gwent	—	sustained	2033 m	210 m	10.3%	18.9%	Good
Ty Gwyn Road	near Llandudno · Clwyd	tag: 20% (2026)	sustained	841 m	96 m	11.4%	19.4%	High
Tylwch to Brynposteg Hill^°	near Tylwch · Powys	—	sustained	4281 m	103 m	2.4%	20.0%	High
Tylwch to Oldchapel Hill^°	near Tylwch · Powys	—	sustained	1916 m	121 m	6.3%	23.8%	High
Tythecott to Buckland Brewer^°	near Tythecott · Devon	—	stepped	791 m	72 m	9.1%	22.6%	Good
Ulpha to Rough Gill^°	near Ulpha · Cumbria	—	stepped	1944 m	140 m	7.2%	21.5%	High
Underhill	near Glaisdale · North Yorkshire	—	sustained	790 m	91 m	11.5%	27.6%	Good
Unnamed lane near Llanfihangel-y-Creuddyn	near Cnwch Coch · Dyfed	—	stepped	1171 m	114 m	9.7%	≈caveated27.1%	Good
Upcott Lane	near Hoe Combe · Somerset	—	sustained	988 m	106 m	10.7%	≈caveated21.3%	Needs confirmation
Upland Lane	near West Liss · Hampshire	—	stepped	979 m	76 m	7.8%	≈caveated20.6%	Good
Upottery to Reddick's Hill^°	near Upottery · Devon	—	stepped	1852 m	102 m	5.5%	21.0%	Good
Upper Bourne End Lane	near Bourne End · Hertfordshire	—	stepped	1010 m	63 m	6.3%	21.1%	High
Upper Braddons Hill Road	near Torquay · Devon	—	sustained	1037 m	89 m	8.6%	20.0%	High
Upper Hergest	near Kington · Herefordshire	—	sustained	1614 m	162 m	10.0%	≈caveated21.1%	Needs confirmation
Upper Mill Lane	near Prestbury · Gloucestershire	—	sustained	1521 m	126 m	8.3%	22.5%	High
Uppincott Lane	near Hollow Combe · Devon	—	stepped	1917 m	121 m	6.3%	20.4%	Good
Uton to Venny Tedburn^°	near Fordton · Devon	—	sustained	2780 m	104 m	3.8%	20.8%	High
Vale Street	near Knowle · Bristol	Another 100⁵, BikeRadar 7⁸	sustained	231 m	35 m	15.2%	27.2%	High
Valley Road	near Carbis Bay · Cornwall	—	sustained	401 m	54 m	13.4%	32.0%	High
Vellacott Lane	near Combe Martin · Devon	—	stepped	3609 m	149 m	4.1%	20.6%	Good
Venford Hill	near Hawkridge · Somerset	—	sustained	533 m	81 m	15.1%	≈caveated22.3%	Needs confirmation
Venn Road	near Landkey Town · Devon	—	sustained	840 m	73 m	8.7%	≈caveated26.4%	Good
Venton to Wind Tor^°	near Venton · Devon	—	stepped	1901 m	110 m	5.8%	23.6%	Good
Vicarage Road	near Aish · Devon	—	sustained	327 m	38 m	11.7%	20.9%	Good
Victoria Crescent	near Selkirk · Scottish Borders	—	sustained	339 m	42 m	12.3%	20.8%	High
Victoria Lane	near Lower Wellhouse	—	sustained	330 m	39 m	11.9%	20.4%	High
Victoria Street	near Tonypandy · Mid Glamorgan	—	stepped	397 m	33 m	8.4%	20.3%	Needs confirmation
Village Road	near Marldon · Devon	—	sustained	861 m	55 m	6.4%	21.3%	High
Vine Row	near Ystalyfera · West Glamorgan	—	sustained	667 m	82 m	12.3%	≈caveated28.5%	Good
Vinegar Hill	near Offleyhay · Staffordshire	—	sustained	641 m	43 m	6.7%	21.7%	Needs confirmation
Viney Hill to Blakeney Hill^°	near Viney Hill · Gloucestershire	—	sustained	869 m	86 m	9.9%	20.8%	Needs confirmation
Vowchurch Common	near Vowchurch · Herefordshire	—	stepped	884 m	78 m	8.8%	25.3%	High
Wadsworth Lane	near Hebden Bridge	—	sustained	1800 m	187 m	10.4%	20.3%	High
Wakefield Gate	near Pye Nest	—	sustained	503 m	58 m	11.6%	20.5%	High
Walter Clough Lane	near Wood Bottom	—	stepped	902 m	97 m	10.7%	≈caveated22.4%	Good
Warend Hill	near Dursley · Gloucestershire	—	sustained	824 m	106 m	12.9%	28.6%	Good
Warkleigh to Chittlehamholt^°	near Warkleigh · Devon	—	stepped	1849 m	47 m	2.5%	22.0%	High
Warland Gate	near Bottomley	—	sustained	1021 m	110 m	10.8%	≈caveated25.7%	Good
Warleigh to Warleigh Hill^°	near Claverton · Somerset	—	stepped	1934 m	125 m	6.5%	21.6%	Good
Wash to Bowden Head^°	near Chapel-en-le-Frith · Derbyshire	—	sustained	824 m	90 m	10.9%	22.0%	Good
Washgate Lane	near Dowel Dale · Derbyshire	—	stepped	759 m	52 m	6.9%	20.4%	High
Watch Knott to Ludderburn Hill^°	near Bowland Bridge · Cumbria	—	sustained	1764 m	120 m	6.8%	≈caveated24.8%	Good
Watch Knott to Winster^°	near Bowland Bridge · Cumbria	—	sustained	2893 m	57 m	2.0%	20.6%	High
Waterley Bottom	near Dursley · Gloucestershire	—	sustained	336 m	38 m	11.4%	22.1%	Needs confirmation
Waterloo Road	near Abersychan · Gwent	—	sustained	749 m	86 m	11.5%	≈caveated24.5%	Good
Watermeetings Lane	near Marple	—	sustained	445 m	42 m	9.3%	21.1%	High
Waterpits	near Courtway · Somerset	—	sustained	1372 m	96 m	7.0%	21.8%	High
Watersmeet Road	near Lynton · Devon	—	sustained	5116 m	297 m	5.8%	≈caveated16.8%	Good
Watroyd Lane	near Lower Wellhouse	—	sustained	414 m	50 m	12.1%	24.6%	High
Waydown Lane	near Timberscombe · Somerset	—	sustained	791 m	66 m	8.3%	20.1%	Needs confirmation
Wear Chare	near Bishop Auckland · County Durham	—	stepped	320 m	28 m	8.7%	≈caveated20.3%	Needs confirmation
Weary Bank	near Foxton · North Yorkshire	—	stepped	1446 m	45 m	3.1%	28.4%	Needs confirmation
Well Bank	near Ireshopeburn · County Durham	—	sustained	1020 m	117 m	11.5%	21.4%	Good
Wellington to New Mill^°	near Wellington · Cumbria	—	stepped	1162 m	85 m	7.3%	≈caveated24.7%	Good
Wellshead Lane	near Rat Combe · Somerset	—	stepped	2344 m	136 m	5.8%	26.0%	Good
Welsh Harp Hollow	near Buttington · Powys	—	sustained	3695 m	304 m	8.2%	23.1%	Good
Wern-llaeth to Graig Ddu^°	near Graig Ddu · Dyfed	—	sustained	558 m	47 m	8.3%	11.5%	High
Wessenden Head Road	near Meltham	—	sustained	3315 m	248 m	7.5%	≈caveated11.7%	Good
West Bagborough Road	near Cothelstone · Somerset	—	sustained	3064 m	236 m	7.7%	≈caveated22.1%	Needs confirmation
West Burridge Cross	near Filleigh · Devon	—	stepped	2685 m	113 m	4.2%	22.2%	Needs confirmation
West Lane	near Croscombe · Somerset	—	sustained	617 m	77 m	12.4%	21.0%	High
West Portholland to Tregenna^°	near West Portholland · Cornwall	—	sustained	1102 m	91 m	8.3%	20.4%	High
Westcliff Road	near Charmouth · Dorset	—	sustained	559 m	70 m	12.5%	24.1%	Good
Westend Lane	near Hanging Bottom · North Yorkshire	—	sustained	1883 m	103 m	5.5%	22.0%	Good
Westerland Lane	near Paignton · Devon	—	sustained	1150 m	63 m	5.5%	21.9%	Needs confirmation
Western Lane	near Smitham Hill · Somerset	—	stepped	1250 m	74 m	6.0%	21.2%	High
Westhope Hill	near Westhope · Herefordshire	—	sustained	1326 m	121 m	9.1%	≈caveated27.4%	Good
Westminster Bank	near Great Malvern · Worcestershire	—	stepped	827 m	55 m	6.7%	23.2%	High
Weston Hill	near Weston · Somerset	National HC¹, 100 Climbs²	sustained	1874 m	168 m	9.0%	18.3%	High
Westville to Easton^°	near Kingsbridge · Devon	—	stepped	640 m	46 m	7.2%	22.7%	High
Wetton Road	near Wetton · Staffordshire	—	stepped	2143 m	118 m	5.5%	24.3%	Good
Wharfedale Road	near Lancaster · Lancashire	—	stepped	292 m	27 m	9.2%	20.8%	High
Wheal Kitty Lane	near Trevellas Coombe · Cornwall	—	sustained	473 m	67 m	14.1%	20.3%	High
Whinlatter Pass	near Braithwaite · Cumbria	100 Climbs²	sustained	1617 m	131 m	8.1%	23.7%	Good
Whinny Lane	near East Law · County Durham	—	sustained	1563 m	115 m	7.4%	20.5%	High
Whitchurch Canonicorum to Morcombelake^°	near Whitchurch Canonicorum · Dorset	—	sustained	1314 m	118 m	9.0%	22.0%	Needs confirmation
Whitchurch to Symonds Yat West^°	near Whitchurch · Herefordshire	—	stepped	2426 m	138 m	5.7%	22.8%	Needs confirmation
White Downs	near Wotton · Surrey	100 Climbs²	sustained	671 m	65 m	9.6%	≈caveated20.4%	Good
White Hill Lane	near Lothersdale · North Yorkshire	—	sustained	1796 m	87 m	4.8%	≈caveated14.6%	Good
White Snub to Hill of Findon^°	near Gardenstown · Aberdeenshire	—	stepped	3051 m	176 m	5.8%	18.2%	Needs confirmation
Whitebrook Lane	near Carlingcott · Somerset	—	stepped	1353 m	88 m	6.5%	20.1%	Good
Whiteheads Lane	near Bradford-on-Avon · Wiltshire	—	sustained	352 m	38 m	10.8%	21.6%	Needs confirmation
Whiteleaf (Peters Lane)	near Princes Risborough · Buckinghamshire	100 Climbs²	sustained	1418 m	128 m	9.0%	23.1%	Good
Whiterock Road	near Belfast · County Antrim	—	sustained	866 m	103 m	11.9%	≈caveated31.3%	Good
Whitty Lane	near Warley Town	—	sustained	1275 m	116 m	9.1%	27.0%	High
Wickenlow Lane	near Colshaw · Staffordshire	—	sustained	2007 m	76 m	3.8%	20.3%	High
Widecombe in the Moor to Wind Tor^°	near Widecombe in the Moor · Devon	—	sustained	1135 m	129 m	11.3%	22.1%	Good
Wiggaton to Bald Hill^°	near Ottery St Mary · Devon	—	sustained	1974 m	130 m	6.6%	24.6%	Good
Wilcombe Cross	near Newtown · Devon	—	stepped	1787 m	127 m	7.1%	≈caveated27.5%	Good
Willand to Smeatharpe^°	near Willand · Somerset	—	sustained	2178 m	43 m	2.0%	28.1%	Good
Willhayes Hill	near Doddiscombsleigh · Devon	—	stepped	2098 m	105 m	5.0%	≈caveated22.6%	Needs confirmation
Willing Gate	near Rattery · Devon	—	sustained	1258 m	48 m	3.8%	20.4%	High
Willingcott Hill	near North Buckland · Devon	—	stepped	2318 m	137 m	5.9%	≈caveated20.4%	Needs confirmation
Willow Bank	near Luddenden Foot	—	stepped	254 m	49 m	19.3%	≈caveated30.6%	Good
Willoway Lane	near Braunton · Devon	—	sustained	1084 m	96 m	8.8%	20.7%	Good
Willowpark Lane	near Coffinswell · Devon	—	stepped	751 m	38 m	5.1%	20.5%	Good
Wilton Way	near Abbotskerswell · Devon	—	sustained	377 m	38 m	10.0%	20.6%	Good
Winchcombe to Sudeley Hill^°	near Winchcombe · Gloucestershire	—	sustained	2765 m	207 m	7.5%	21.1%	Good
Windball Hill	near Dulverton · Somerset	—	stepped	1725 m	148 m	8.6%	22.6%	High
Windsor Road	near Abertyleri · Gwent	—	sustained	448 m	40 m	9.0%	20.4%	High
Windwhistle Lane	near Woodford · Somerset	—	sustained	3953 m	277 m	7.0%	≈caveated25.1%	Good
Winksley to Woodhouse Hill^°	near Winksley · North Yorkshire	—	sustained	1344 m	52 m	3.8%	20.6%	Needs confirmation
Winn Lane	near Atlow · Derbyshire	—	sustained	488 m	51 m	10.6%	28.7%	Needs confirmation
Winnats Pass	near Castleton · Derbyshire	National HC¹, 100 Climbs²	sustained	1454 m	168 m	11.5%	18.6%	High
Withens End Lane	near Rishworth	—	stepped	1273 m	61 m	4.8%	20.5%	Good
Withington to Chatterley^°	near Withington · Gloucestershire	—	stepped	1984 m	108 m	5.4%	20.1%	High
Withleigh to Crockers Down^°	near Withleigh · Devon	—	stepped	1137 m	69 m	6.0%	≈caveated26.7%	Needs confirmation
Withyditch Lane	near Carlingcott · Somerset	—	sustained	1480 m	100 m	6.8%	22.3%	Good
Withypool to Room Hill^°	near Withypool · Somerset	—	stepped	1218 m	104 m	8.6%	≈caveated23.8%	Good
Wood Lane	near Dartmouth · Devon	—	stepped	718 m	74 m	10.3%	≈caveated19.2%	Good
Wood Lane	near Sowerby Bridge	—	sustained	743 m	95 m	12.8%	24.1%	High
Wood Royd Road	near Stocksbridge	—	sustained	897 m	65 m	7.2%	20.8%	Good
Wood Street	near Maerdy · Mid Glamorgan	—	sustained	245 m	29 m	12.0%	20.0%	High
Woodbrook Road	near Alderley Edge · Cheshire	—	sustained	630 m	69 m	11.0%	≈caveated24.3%	Needs confirmation
Woodcock Lane	near The Bank · Cheshire	—	sustained	987 m	99 m	10.1%	21.5%	High
Woodfall Lane	near Low Bradfield	—	sustained	917 m	104 m	11.4%	20.6%	Good
Woodford to Blackawton^°	near Blackawton · Devon	—	sustained	595 m	58 m	9.7%	≈caveated27.6%	Needs confirmation
Woodland Hill	near Woodland Head · Devon	—	sustained	1390 m	95 m	6.8%	22.8%	Needs confirmation
Woodside View	near Holmfirth	—	sustained	318 m	36 m	11.2%	22.5%	High
Woolacombe Station Road	near Woolacombe · Devon	—	stepped	2501 m	145 m	5.8%	≈caveated26.6%	Good
Worlington Hill	near Instow · Devon	—	sustained	368 m	58 m	15.7%	≈caveated25.1%	Good
Wormcliffe Lane	near Ashley · Wiltshire	—	stepped	2034 m	101 m	5.0%	22.5%	Needs confirmation
Worth Lane	near Fox Combe · Somerset	—	sustained	759 m	94 m	12.4%	20.0%	High
Wreay to Watermillock Fell^°	near Wreay · Cumbria	—	stepped	2051 m	134 m	6.5%	≈caveated21.8%	Good
Wrynose Pass	near Hollin Slack · Cumbria	100 Climbs², Wikipedia³	sustained	1028 m	108 m	10.5%	24.6%	High
Wyke Road	near Castle Cary · Somerset	—	sustained	1254 m	75 m	5.9%	≈caveated21.9%	Good
Wynniatts Way	near Abberley · Worcestershire	—	sustained	812 m	104 m	12.8%	23.3%	High
Y Blaenau to Cwmcelyn^°	near Y Blaenau · Gwent	—	sustained	846 m	77 m	9.1%	21.0%	High
Yard Downs Lane	near Stockwell · Devon	—	sustained	1431 m	149 m	10.4%	22.3%	High
Yarde to Galloping Bottom^°	near Yarde · Somerset	—	sustained	5500 m	278 m	5.1%	16.9%	Good
Yarnacott to Hutcherton Down^°	near Swimbridge · Devon	—	sustained	1617 m	120 m	7.4%	≈caveated20.3%	Good
Yealscombe Lane	near Exford · Somerset	—	stepped	599 m	45 m	7.5%	21.5%	High
Yearnor Mill Lane	near Porlock Weir · Somerset	—	sustained	4361 m	369 m	8.5%	≈caveated24.0%	Needs confirmation
Yeo Hill	near Bishop's Nympton · Devon	—	stepped	2001 m	113 m	5.6%	22.2%	Good
Yeolmbridge to Langdon^°	near Yeolmbridge · Cornwall	—	sustained	1578 m	60 m	3.8%	20.2%	High
Yorks Hill	near Winkhurst Green · Kent	National HC¹	stepped	2952 m	135 m	4.6%	≈caveated23.9%	Good
Yr Allt	near Allt · Dyfed	—	sustained	537 m	57 m	10.5%	≈caveated27.8%	Good
Yr Allt	near Allt · Dyfed	—	sustained	562 m	51 m	9.0%	≈caveated27.8%	Good

° provisional name — auto-suggested from nearby map places, no local-usage evidence; renames welcome (each climb page has the details).

Sources: ¹ British National Hill Climb Championship · ² 100 Greatest Cycling Climbs (Simon Warren) · ³ Wikipedia · ⁴ Simon Warren 100 Climbs app (Wales collections) · ⁵ Another 100 Greatest Cycling Climbs (Simon Warren) · ⁶ diamond geezer, "London's steepest hills" (2017) · ⁷ Guinness World Records · ⁸ BikeRadar, "7 of the steepest UK climbs, ranked" · ⁹ Tour of Britain