{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (47.0610, -68.6104)",
 "slug": "discovered-lane-47-0610-68-6104",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 41.08309124138714,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 991.0,
   "end_distance_m": 993.0,
   "start_elevation_m": 305.83547438650334,
   "end_elevation_m": 306.6571362113311,
   "min_gradient_pct": -17.727884571033314
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 39.947722545942575,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 925.0,
   "end_distance_m": 928.0,
   "start_elevation_m": 294.75502786210575,
   "end_elevation_m": 295.953459538484,
   "min_gradient_pct": -16.26292399215193
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 38.85063591394555,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 924.0,
   "end_distance_m": 929.0,
   "start_elevation_m": 294.3762112087911,
   "end_elevation_m": 296.3187430044884,
   "min_gradient_pct": -13.656895380751166
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 32.01143792872642,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 985.0,
   "end_distance_m": 995.0,
   "start_elevation_m": 304.08371847383006,
   "end_elevation_m": 307.2848622667027,
   "min_gradient_pct": -8.467482531405892
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 28.70384027162416,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 524.0,
   "end_distance_m": 544.0,
   "start_elevation_m": 240.17013095733412,
   "end_elevation_m": 245.91089901165896,
   "min_gradient_pct": -5.728293127946671
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 27.20116417105396,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 520.0,
   "end_distance_m": 545.0,
   "start_elevation_m": 239.3211823606522,
   "end_elevation_m": 246.12147340341568,
   "min_gradient_pct": -4.9325076119285995
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 23.35050496976209,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 508.0,
   "end_distance_m": 558.0,
   "start_elevation_m": 236.75618349884886,
   "end_elevation_m": 248.4314359837299,
   "min_gradient_pct": -2.3494157355950165
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 20.776665434002044,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 479.0,
   "end_distance_m": 579.0,
   "start_elevation_m": 231.56397444188013,
   "end_elevation_m": 252.34063987588218,
   "min_gradient_pct": 0.1661328850966015
  }
 ],
 "shape": {
  "ascent_concentration": 0.345,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 206.0,
  "shape_class": "sustained"
 },
 "length_m": 1178.9999999999718,
 "start_elevation_m": 191.03687643279568,
 "end_elevation_m": 314.4377712251023,
 "endpoint_gain_m": 123.40089479230664,
 "overall_gradient_pct": 10.466572925556369,
 "accumulated_ascent_m": 130.77543017432822,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 38.85063591394555,
   "start_distance_m": 924.0,
   "end_distance_m": 929.0,
   "midpoint_distance_m": 926.5,
   "start_elevation_m": 294.3762112087911,
   "end_elevation_m": 296.3187430044884,
   "start_xy": [
    529506.9839565582,
    5212061.066344632
   ],
   "end_xy": [
    529502.7363359596,
    5212063.704091705
   ]
  },
  "max_10m": {
   "gradient_pct": 32.01143792872642,
   "start_distance_m": 985.0,
   "end_distance_m": 995.0,
   "midpoint_distance_m": 990.0,
   "start_elevation_m": 304.08371847383006,
   "end_elevation_m": 307.2848622667027,
   "start_xy": [
    529452.2048239645,
    5212076.115039051
   ],
   "end_xy": [
    529442.4369217405,
    5212073.973060567
   ]
  },
  "max_20m": {
   "gradient_pct": 28.70384027162416,
   "start_distance_m": 524.0,
   "end_distance_m": 544.0,
   "midpoint_distance_m": 534.0,
   "start_elevation_m": 240.17013095733412,
   "end_elevation_m": 245.91089901165896,
   "start_xy": [
    529880.5806181255,
    5211957.458234337
   ],
   "end_xy": [
    529860.9258419401,
    5211953.758265377
   ]
  },
  "max_25m": {
   "gradient_pct": 27.20116417105396,
   "start_distance_m": 520.0,
   "end_distance_m": 545.0,
   "midpoint_distance_m": 532.5,
   "start_elevation_m": 239.3211823606522,
   "end_elevation_m": 246.12147340341568,
   "start_xy": [
    529884.5115737666,
    5211958.198225989
   ],
   "end_xy": [
    529859.9433090927,
    5211953.572176177
   ]
  },
  "max_50m": {
   "gradient_pct": 23.35050496976209,
   "start_distance_m": 508.0,
   "end_distance_m": 558.0,
   "midpoint_distance_m": 533.0,
   "start_elevation_m": 236.75618349884886,
   "end_elevation_m": 248.4314359837299,
   "start_xy": [
    529896.304258275,
    5211960.419166613
   ],
   "end_xy": [
    529847.1676508579,
    5211951.16750034
   ]
  },
  "max_100m": {
   "gradient_pct": 20.776665434002044,
   "start_distance_m": 479.0,
   "end_distance_m": 579.0,
   "midpoint_distance_m": 529.0,
   "start_elevation_m": 231.56397444188013,
   "end_elevation_m": 252.34063987588218,
   "start_xy": [
    529924.8034787693,
    5211965.78520811
   ],
   "end_xy": [
    529826.185558155,
    5211951.477286163
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -13.656895380751166,
   "start_distance_m": 624.0,
   "end_distance_m": 629.0,
   "midpoint_distance_m": 626.5,
   "start_elevation_m": 257.4821554301043,
   "end_elevation_m": 256.7993106610667,
   "start_xy": [
    529781.1977676644,
    5211952.525281345
   ],
   "end_xy": [
    529776.1991371436,
    5211952.642272846
   ]
  },
  "min_10m": {
   "gradient_pct": -8.467482531405892,
   "start_distance_m": 325.0,
   "end_distance_m": 335.0,
   "midpoint_distance_m": 330.0,
   "start_elevation_m": 220.55118708029875,
   "end_elevation_m": 219.70443882715816,
   "start_xy": [
    530078.3636749269,
    5211973.625442896
   ],
   "end_xy": [
    530068.451318295,
    5211974.946494115
   ]
  },
  "min_20m": {
   "gradient_pct": -5.728293127946671,
   "start_distance_m": 323.0,
   "end_distance_m": 343.0,
   "midpoint_distance_m": 333.0,
   "start_elevation_m": 220.6395769303047,
   "end_elevation_m": 219.49391830471538,
   "start_xy": [
    530080.3461830781,
    5211973.361508409
   ],
   "end_xy": [
    530060.4713817153,
    5211974.7195419865
   ]
  },
  "min_25m": {
   "gradient_pct": -4.9325076119285995,
   "start_distance_m": 323.0,
   "end_distance_m": 348.0,
   "midpoint_distance_m": 335.5,
   "start_elevation_m": 220.6395769303047,
   "end_elevation_m": 219.40645002732256,
   "start_xy": [
    530080.3461830781,
    5211973.361508409
   ],
   "end_xy": [
    530055.4806354812,
    5211974.415489254
   ]
  },
  "min_50m": {
   "gradient_pct": -2.3494157355950165,
   "start_distance_m": 304.0,
   "end_distance_m": 354.0,
   "midpoint_distance_m": 329.0,
   "start_elevation_m": 220.5299080374483,
   "end_elevation_m": 219.3552001696508,
   "start_xy": [
    530099.1796519548,
    5211970.851445955
   ],
   "end_xy": [
    530049.4917478441,
    5211974.050496114
   ]
  },
  "min_100m": {
   "gradient_pct": 0.1661328850966015,
   "start_distance_m": 296.0,
   "end_distance_m": 396.0,
   "midpoint_distance_m": 346.0,
   "start_elevation_m": 219.56633850622111,
   "end_elevation_m": 219.73247139131772,
   "start_xy": [
    530107.1095183477,
    5211969.794463752
   ],
   "end_xy": [
    530007.56959481,
    5211971.494547378
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 41.08309124138714,
   "start_distance_m": 991.0,
   "end_distance_m": 993.0,
   "midpoint_distance_m": 992.0,
   "start_elevation_m": 305.83547438650334,
   "end_elevation_m": 306.6571362113311,
   "start_xy": [
    529446.3442333062,
    5212074.82916574
   ],
   "end_xy": [
    529444.3905965574,
    5212074.401026268
   ]
  },
  "max_3m": {
   "gradient_pct": 39.947722545942575,
   "start_distance_m": 925.0,
   "end_distance_m": 928.0,
   "midpoint_distance_m": 926.5,
   "start_elevation_m": 294.75502786210575,
   "end_elevation_m": 295.953459538484,
   "start_xy": [
    529506.134494089,
    5212061.593993665
   ],
   "end_xy": [
    529503.5855247163,
    5212063.176002297
   ]
  }
 },
 "diagnostic_note": "Windows <=3 m are at raster-noise scale (1-sigma raster noise alone is roughly +/-7 pp at 2 m and +/-5 pp at 3 m on a 1 m DTM). Diagnostic use only: never a headline or ranking value.",
 "quality_summary": {
  "review": [],
  "extent": [
   "descends_at_start"
  ]
 },
 "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:26919",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/usa/me/USGS_1M_19_x52y522_ME_CrownofMaine_2018_A18.tif",
   "data/cache/usa/me/USGS_1M_19_x53y522_ME_CrownofMaine_2018_A18.tif"
  ],
  "calculated_at": "2026-09-03T22:45:18+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/maine-2026-08-22.osm.pbf",
  "osm_snapshot": "2026-08-21T20:21:11Z",
  "run_id": "extent-trim-v2-260903",
  "elevation_provider": "USGS 3DEP (The National Map)",
  "elevation_licence": "Public domain \u2014 USGS 3DEP 1 m DEM, courtesy of the U.S. Geological Survey",
  "elevation_dataset": "USGS 3DEP 1 m DEM, ME_CrownofMaine_2018_A18 (collected 2018)",
  "elevation_tile_ids": [
   "x52y522",
   "x53y522"
  ],
  "route_cut_m": 1179.0,
  "climb_origin": "discovered",
  "canopy_check": "unavailable \u2014 no surface model (DSM or point cloud) registered for this coverage",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing.html"
 },
 "area": {
  "place": "Eagle Lake",
  "county": "Maine"
 }
}