Pea Royd Lane
441.8 m · net rise 67.5 m · total ascent 73.1 m · overall 15.3% · confidence: needs confirmation · Stocksbridge
Shape: sustained — 32% of the climbing sits in a quarter of the distance; longest continuous stretch at 10%+ is 191 m.
Matches: Tour of Britain, British National Hill Climb Championship — Côte de Pea Royd Lane, Stocksbridge stage finishes — Venue 2009, 2014, 2018.
needs review short_window_divergence — treat short-window maxima here as provisional.
≈ Overhead cover (tree canopy or structures) spans 10% of this route — detected by comparing the surface model (DSM, treetops and rooftops) against the terrain model (DTM, bare ground). Under cover the bare-ground model is built from fewer laser returns, so metre-scale readings can wobble; maxima whose window sits in a covered zone are marked ≈ below — less certain — the flag does not say whether the true value is higher or lower. Longer windows average over more clean ground and are steadier.
Gradient ladder what do windows mean?
| Window | Maximum | Located at | |
|---|---|---|---|
| 2 m (diagnostic) | 50% | 240–242 m | |
| 3 m (diagnostic) | ≈46% | 240–243 m | under overhead cover terrain reads 47.9% at 226–229 m across a structure — excluded |
| 5 m | ≈42% | 237–242 m | under overhead cover terrain reads 46.2% at 226–231 m across a structure — excluded |
| 10 m | ≈28% | 237–247 m | under overhead cover terrain reads 44.7% at 226–236 m across a structure — excluded |
| 20 m | ≈19.5% | 307–327 m | under overhead cover terrain reads 42.9% at 222–242 m across a structure — excluded |
| 25 m | ≈19.2% | 302–327 m | under overhead cover terrain reads 42.5% at 218–243 m across a structure — excluded |
| 50 m | ≈17.9% | 288–338 m | under overhead cover terrain reads 26.6% at 215–265 m across a structure — excluded |
| 100 m | ≈17.5% | 289–389 m | under overhead cover terrain reads 20.9% at 216–316 m across a structure — excluded |
may_start_earliermay_continue_beyond_end Extent detection suggests reviewing where this climb starts/ends.
Map
Check this route yourself: Google Maps route via their router · Street View at the base where coverage exists · OSM way 47174793 highlights the mapped road · geojson.io our exact measured line · OpenTopoMap
This climb's data: OCL JSON — the full gradient ladder, quality flags and provenance in the OpenClimb Ladder format.
Ridden it, or know better? Submit data for this climb no account needed
© OpenStreetMap contributors · topo tiles © OpenTopoMap (CC-BY-SA) · vector tiles OpenFreeMap
Profile
Provenance
{
"analysis_version": "0.1.0",
"sample_interval_m": 1.0,
"interpolation": "bilinear",
"smoothing": "none",
"gradient_windows_m": [
5.0,
10.0,
20.0,
25.0,
50.0,
100.0
],
"diagnostic_windows_m": [
2.0,
3.0
],
"elevation_crs": "EPSG:27700",
"elevation_resolution_m": 1.0,
"elevation_tiles": [
"data/cache/england/dtm_1m/E426000_N398000_2000m.tif"
],
"calculated_at": "2026-08-12T09:12:21+00:00",
"road_source": "OpenStreetMap",
"road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
"osm_ids": [
47174793,
58628427,
58628433
],
"osm_versions": {
"47174793": 7,
"58628427": 6,
"58628433": 7
},
"osm_timestamps": {
"47174793": "2025-01-25T20:59:37Z",
"58628427": "2026-03-07T20:02:26Z",
"58628433": "2025-01-25T20:59:48Z"
},
"osm_retrieved_at": "2026-08-12T09:12:21+00:00",
"elevation_provider": "Environment Agency",
"elevation_dataset": "EA LIDAR Composite DTM 1m (2022)",
"elevation_licence": "Open Government Licence v3 \u2014 \u00a9 Environment Agency",
"elevation_coverage_id": "13787b9a-26a4-4775-8523-806d13af58fc__Lidar_Composite_Elevation_DTM_1m",
"elevation_tile_ids": [
"E426000_N398000_2000m.tif"
],
"climb_origin": "competition",
"notes": "Stocksbridge. National HC Championship 2018 course."
}