{
 "ocl_version": "0.1.0",
 "name": "Hanging Stone Lane",
 "slug": "hanging-stone-lane",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 30.987638083828983,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 43.0,
   "end_distance_m": 45.0,
   "start_elevation_m": 174.4990069246401,
   "end_elevation_m": 175.11875968631668,
   "min_gradient_pct": -14.231970041963393
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 31.235222292795584,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 42.0,
   "end_distance_m": 45.0,
   "start_elevation_m": 174.1817030175328,
   "end_elevation_m": 175.11875968631668,
   "min_gradient_pct": -11.360393676358171
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 29.73745510236654,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 41.0,
   "end_distance_m": 46.0,
   "start_elevation_m": 173.9133477955918,
   "end_elevation_m": 175.40022055071012,
   "min_gradient_pct": -8.52758454594948
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 28.49520362525965,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 36.0,
   "end_distance_m": 46.0,
   "start_elevation_m": 172.55070018818415,
   "end_elevation_m": 175.40022055071012,
   "min_gradient_pct": -7.5624895130439995
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 24.288692059391366,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 36.0,
   "end_distance_m": 56.0,
   "start_elevation_m": 172.55070018818415,
   "end_elevation_m": 177.40843860006242,
   "min_gradient_pct": -5.41779826515139
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 24.128192894785002,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 36.0,
   "end_distance_m": 61.0,
   "start_elevation_m": 172.55070018818415,
   "end_elevation_m": 178.5827484118804,
   "min_gradient_pct": -5.179718587465004
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.37603414931948,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 32.0,
   "end_distance_m": 82.0,
   "start_elevation_m": 171.74790326753515,
   "end_elevation_m": 181.4359203421949,
   "min_gradient_pct": -3.349199159492912
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 15.576555329123467,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 23.0,
   "end_distance_m": 123.0,
   "start_elevation_m": 170.5221549141516,
   "end_elevation_m": 186.09871024327506,
   "min_gradient_pct": -0.08275115580372017
  }
 ],
 "shape": {
  "ascent_concentration": 0.458,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 100.0,
  "shape_class": "stepped"
 },
 "length_m": 534.122291625347,
 "start_elevation_m": 169.32483386134845,
 "end_elevation_m": 212.81023856579267,
 "endpoint_gain_m": 43.48540470444422,
 "overall_gradient_pct": 8.14146973198162,
 "accumulated_ascent_m": 46.944791660343725,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 29.73745510236654,
   "start_distance_m": 41.0,
   "end_distance_m": 46.0,
   "midpoint_distance_m": 43.5,
   "start_elevation_m": 173.9133477955918,
   "end_elevation_m": 175.40022055071012,
   "start_xy": [
    472329.3060230121,
    497586.9726967146
   ],
   "end_xy": [
    472334.0811817279,
    497588.40722106554
   ]
  },
  "max_10m": {
   "gradient_pct": 28.49520362525965,
   "start_distance_m": 36.0,
   "end_distance_m": 46.0,
   "midpoint_distance_m": 41.0,
   "start_elevation_m": 172.55070018818415,
   "end_elevation_m": 175.40022055071012,
   "start_xy": [
    472324.35164918314,
    497586.45333524764
   ],
   "end_xy": [
    472334.0811817279,
    497588.40722106554
   ]
  },
  "max_20m": {
   "gradient_pct": 24.288692059391366,
   "start_distance_m": 36.0,
   "end_distance_m": 56.0,
   "midpoint_distance_m": 46.0,
   "start_elevation_m": 172.55070018818415,
   "end_elevation_m": 177.40843860006242,
   "start_xy": [
    472324.35164918314,
    497586.45333524764
   ],
   "end_xy": [
    472342.71585244,
    497593.4461484702
   ]
  },
  "max_25m": {
   "gradient_pct": 24.128192894785002,
   "start_distance_m": 36.0,
   "end_distance_m": 61.0,
   "midpoint_distance_m": 48.5,
   "start_elevation_m": 172.55070018818415,
   "end_elevation_m": 178.5827484118804,
   "start_xy": [
    472324.35164918314,
    497586.45333524764
   ],
   "end_xy": [
    472346.97298581275,
    497596.06851675984
   ]
  },
  "max_50m": {
   "gradient_pct": 19.37603414931948,
   "start_distance_m": 32.0,
   "end_distance_m": 82.0,
   "midpoint_distance_m": 57.0,
   "start_elevation_m": 171.74790326753515,
   "end_elevation_m": 181.4359203421949,
   "start_xy": [
    472320.5076604856,
    497587.1669722201
   ],
   "end_xy": [
    472365.9693364885,
    497604.8976948706
   ]
  },
  "max_100m": {
   "gradient_pct": 15.576555329123467,
   "start_distance_m": 23.0,
   "end_distance_m": 123.0,
   "midpoint_distance_m": 73.0,
   "start_elevation_m": 170.5221549141516,
   "end_elevation_m": 186.09871024327506,
   "start_xy": [
    472312.5737816124,
    497591.4011305411
   ],
   "end_xy": [
    472405.56246783293,
    497615.4804567837
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -8.52758454594948,
   "start_distance_m": 379.0,
   "end_distance_m": 384.0,
   "midpoint_distance_m": 381.5,
   "start_elevation_m": 207.39266517526357,
   "end_elevation_m": 206.9662859479661,
   "start_xy": [
    472468.15165092674,
    497831.5173919943
   ],
   "end_xy": [
    472467.7518460649,
    497836.5013819694
   ]
  },
  "min_10m": {
   "gradient_pct": -7.5624895130439995,
   "start_distance_m": 379.0,
   "end_distance_m": 389.0,
   "midpoint_distance_m": 384.0,
   "start_elevation_m": 207.39266517526357,
   "end_elevation_m": 206.63641622395917,
   "start_xy": [
    472468.15165092674,
    497831.5173919943
   ],
   "end_xy": [
    472467.352041203,
    497841.4853719446
   ]
  },
  "min_20m": {
   "gradient_pct": -5.41779826515139,
   "start_distance_m": 379.0,
   "end_distance_m": 399.0,
   "midpoint_distance_m": 389.0,
   "start_elevation_m": 207.39266517526357,
   "end_elevation_m": 206.3091055222333,
   "start_xy": [
    472468.15165092674,
    497831.5173919943
   ],
   "end_xy": [
    472466.70430223,
    497851.462733914
   ]
  },
  "min_25m": {
   "gradient_pct": -5.179718587465004,
   "start_distance_m": 381.0,
   "end_distance_m": 406.0,
   "midpoint_distance_m": 393.5,
   "start_elevation_m": 207.24331933304353,
   "end_elevation_m": 205.94838968617728,
   "start_xy": [
    472467.991728982,
    497833.51098798437
   ],
   "end_xy": [
    472466.4009511798,
    497858.45615783514
   ]
  },
  "min_50m": {
   "gradient_pct": -3.349199159492912,
   "start_distance_m": 361.0,
   "end_distance_m": 411.0,
   "midpoint_distance_m": 386.0,
   "start_elevation_m": 207.38218319323042,
   "end_elevation_m": 205.70758361348396,
   "start_xy": [
    472469.5909484294,
    497813.57502808375
   ],
   "end_xy": [
    472466.1842718582,
    497863.45146063593
   ]
  },
  "min_100m": {
   "gradient_pct": -0.08275115580372017,
   "start_distance_m": 311.0,
   "end_distance_m": 411.0,
   "midpoint_distance_m": 361.0,
   "start_elevation_m": 205.79033476928768,
   "end_elevation_m": 205.70758361348396,
   "start_xy": [
    472471.5535510381,
    497763.6355887846
   ],
   "end_xy": [
    472466.1842718582,
    497863.45146063593
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 30.987638083828983,
   "start_distance_m": 43.0,
   "end_distance_m": 45.0,
   "midpoint_distance_m": 44.0,
   "start_elevation_m": 174.4990069246401,
   "end_elevation_m": 175.11875968631668,
   "start_xy": [
    472331.23579486576,
    497587.4980352653
   ],
   "end_xy": [
    472333.1655667194,
    497588.02337381605
   ]
  },
  "max_3m": {
   "gradient_pct": 31.235222292795584,
   "start_distance_m": 42.0,
   "end_distance_m": 45.0,
   "midpoint_distance_m": 43.5,
   "start_elevation_m": 174.1817030175328,
   "end_elevation_m": 175.11875968631668,
   "start_xy": [
    472330.27090893895,
    497587.23536598997
   ],
   "end_xy": [
    472333.1655667194,
    497588.02337381605
   ]
  }
 },
 "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": {
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.073,
   "obstruction_max_height_m": 15.27,
   "flagged_windows_m": []
  },
  "review": [],
  "extent": []
 },
 "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/bulk_dtm_1m/SE7095.tif"
  ],
  "calculated_at": "2026-09-05T09:02:33+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/england-2026-08-27-roads.osm.pbf",
  "osm_snapshot": "2026-08-26T20:22:15Z",
  "run_id": "fix-260905-fix-rebase-england-england-2026-08-27",
  "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": [
   "SE7095.tif"
  ],
  "route_base_cut_m": 901.0,
  "climb_origin": "discovered",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Rosedale Abbey",
  "county": "North Yorkshire"
 }
}