{
 "ocl_version": "0.1.0",
 "name": "Beaverkill Road",
 "slug": "beaverkill-road-3",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 18.82570775342458,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1665.0,
   "end_distance_m": 1667.0,
   "start_elevation_m": 397.250035602677,
   "end_elevation_m": 397.62654975774547,
   "min_gradient_pct": -5.82079032607794
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 18.351812950252604,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1665.0,
   "end_distance_m": 1668.0,
   "start_elevation_m": 397.250035602677,
   "end_elevation_m": 397.80058999118455,
   "min_gradient_pct": -5.827470727289589
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 18.160073928992233,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1441.0,
   "end_distance_m": 1446.0,
   "start_elevation_m": 371.99175862557246,
   "end_elevation_m": 372.89976232202207,
   "min_gradient_pct": -5.413159619721455
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 17.672582573576392,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1437.0,
   "end_distance_m": 1447.0,
   "start_elevation_m": 371.29580580793686,
   "end_elevation_m": 373.0630640652945,
   "min_gradient_pct": -4.497679903219591
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 16.918859943863254,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1730.0,
   "end_distance_m": 1750.0,
   "start_elevation_m": 405.8082591629495,
   "end_elevation_m": 409.1920311517222,
   "min_gradient_pct": -3.692296235332151
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 16.615682660407856,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1725.0,
   "end_distance_m": 1750.0,
   "start_elevation_m": 405.0381104866202,
   "end_elevation_m": 409.1920311517222,
   "min_gradient_pct": -3.5177569559482436
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 14.263908272544768,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1644.0,
   "end_distance_m": 1694.0,
   "start_elevation_m": 394.4821546430392,
   "end_elevation_m": 401.6141087793116,
   "min_gradient_pct": -2.6143283608172396
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 13.966748689742246,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1650.0,
   "end_distance_m": 1750.0,
   "start_elevation_m": 395.22528246197993,
   "end_elevation_m": 409.1920311517222,
   "min_gradient_pct": 0.2823103762169694
  }
 ],
 "shape": {
  "ascent_concentration": 0.292,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 307.0,
  "shape_class": "sustained"
 },
 "length_m": 1750.1420804969268,
 "start_elevation_m": 232.90191437231434,
 "end_elevation_m": 409.21368720654164,
 "endpoint_gain_m": 176.3117728342273,
 "overall_gradient_pct": 10.074140539730706,
 "accumulated_ascent_m": 177.71709296967614,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 18.160073928992233,
   "start_distance_m": 1441.0,
   "end_distance_m": 1446.0,
   "midpoint_distance_m": 1443.5,
   "start_elevation_m": 371.99175862557246,
   "end_elevation_m": 372.89976232202207,
   "start_xy": [
    560345.6765352745,
    4656662.685931646
   ],
   "end_xy": [
    560341.1035498994,
    4656660.704124536
   ]
  },
  "max_10m": {
   "gradient_pct": 17.672582573576392,
   "start_distance_m": 1437.0,
   "end_distance_m": 1447.0,
   "midpoint_distance_m": 1442.0,
   "start_elevation_m": 371.29580580793686,
   "end_elevation_m": 373.0630640652945,
   "start_xy": [
    560349.4759496034,
    4656663.936711705
   ],
   "end_xy": [
    560340.2163682313,
    4656660.242704242
   ]
  },
  "max_20m": {
   "gradient_pct": 16.918859943863254,
   "start_distance_m": 1730.0,
   "end_distance_m": 1750.0,
   "midpoint_distance_m": 1740.0,
   "start_elevation_m": 405.8082591629495,
   "end_elevation_m": 409.1920311517222,
   "start_xy": [
    560178.8866518784,
    4656642.493779832
   ],
   "end_xy": [
    560167.666702677,
    4656656.226002281
   ]
  },
  "max_25m": {
   "gradient_pct": 16.615682660407856,
   "start_distance_m": 1725.0,
   "end_distance_m": 1750.0,
   "midpoint_distance_m": 1737.5,
   "start_elevation_m": 405.0381104866202,
   "end_elevation_m": 409.1920311517222,
   "start_xy": [
    560177.2411071374,
    4656637.790597667
   ],
   "end_xy": [
    560167.666702677,
    4656656.226002281
   ]
  },
  "max_50m": {
   "gradient_pct": 14.263908272544768,
   "start_distance_m": 1644.0,
   "end_distance_m": 1694.0,
   "midpoint_distance_m": 1669.0,
   "start_elevation_m": 394.4821546430392,
   "end_elevation_m": 401.6141087793116,
   "start_xy": [
    560162.644240747,
    4656587.0513626505
   ],
   "end_xy": [
    560155.6055109588,
    4656615.772299024
   ]
  },
  "max_100m": {
   "gradient_pct": 13.966748689742246,
   "start_distance_m": 1650.0,
   "end_distance_m": 1750.0,
   "midpoint_distance_m": 1700.0,
   "start_elevation_m": 395.22528246197993,
   "end_elevation_m": 409.1920311517222,
   "start_xy": [
    560156.6464072148,
    4656587.212585851
   ],
   "end_xy": [
    560167.666702677,
    4656656.226002281
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -5.413159619721455,
   "start_distance_m": 1222.0,
   "end_distance_m": 1227.0,
   "midpoint_distance_m": 1224.5,
   "start_elevation_m": 352.9084661223974,
   "end_elevation_m": 352.6378081414113,
   "start_xy": [
    560535.4526994216,
    4656607.878187993
   ],
   "end_xy": [
    560532.05073674,
    4656611.542427329
   ]
  },
  "min_10m": {
   "gradient_pct": -4.497679903219591,
   "start_distance_m": 1220.0,
   "end_distance_m": 1230.0,
   "midpoint_distance_m": 1225.0,
   "start_elevation_m": 352.9736715229391,
   "end_elevation_m": 352.52390353261717,
   "start_xy": [
    560536.8134844941,
    4656606.4124922585
   ],
   "end_xy": [
    560530.1736077673,
    4656613.879368392
   ]
  },
  "min_20m": {
   "gradient_pct": -3.692296235332151,
   "start_distance_m": 1210.0,
   "end_distance_m": 1230.0,
   "midpoint_distance_m": 1220.0,
   "start_elevation_m": 353.2623627796836,
   "end_elevation_m": 352.52390353261717,
   "start_xy": [
    560544.2151819268,
    4656599.697394596
   ],
   "end_xy": [
    560530.1736077673,
    4656613.879368392
   ]
  },
  "min_25m": {
   "gradient_pct": -3.5177569559482436,
   "start_distance_m": 1206.0,
   "end_distance_m": 1231.0,
   "midpoint_distance_m": 1218.5,
   "start_elevation_m": 353.38420501967823,
   "end_elevation_m": 352.5047657806912,
   "start_xy": [
    560547.2157375419,
    4656597.052273427
   ],
   "end_xy": [
    560529.5658147502,
    4656614.673463882
   ]
  },
  "min_50m": {
   "gradient_pct": -2.6143283608172396,
   "start_distance_m": 1191.0,
   "end_distance_m": 1241.0,
   "midpoint_distance_m": 1216.0,
   "start_elevation_m": 353.6249745547892,
   "end_elevation_m": 352.3178103743806,
   "start_xy": [
    560559.4463718885,
    4656588.382920807
   ],
   "end_xy": [
    560523.7874084803,
    4656622.822481719
   ]
  },
  "min_100m": {
   "gradient_pct": 0.2823103762169694,
   "start_distance_m": 1164.0,
   "end_distance_m": 1264.0,
   "midpoint_distance_m": 1214.0,
   "start_elevation_m": 352.76450347454545,
   "end_elevation_m": 353.0468138507624,
   "start_xy": [
    560580.8093554991,
    4656572.027130738
   ],
   "end_xy": [
    560511.2396246407,
    4656642.084602632
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 18.82570775342458,
   "start_distance_m": 1665.0,
   "end_distance_m": 1667.0,
   "midpoint_distance_m": 1666.0,
   "start_elevation_m": 397.250035602677,
   "end_elevation_m": 397.62654975774547,
   "start_xy": [
    560143.462856883,
    4656592.727829029
   ],
   "end_xy": [
    560142.3099135701,
    4656594.362063319
   ]
  },
  "max_3m": {
   "gradient_pct": 18.351812950252604,
   "start_distance_m": 1665.0,
   "end_distance_m": 1668.0,
   "midpoint_distance_m": 1666.5,
   "start_elevation_m": 397.250035602677,
   "end_elevation_m": 397.80058999118455,
   "start_xy": [
    560143.462856883,
    4656592.727829029
   ],
   "end_xy": [
    560141.997388874,
    4656595.269575114
   ]
  }
 },
 "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": 0.034,
   "obstruction_max_height_m": 22.86,
   "flagged_windows_m": [
    20,
    25,
    100
   ]
  },
  "review": [],
  "extent": [
   "may_continue_beyond_end"
  ]
 },
 "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:26918",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/usa/ny/USGS_1M_18_x56y466_NY_SouthEast4County_A22.tif"
  ],
  "calculated_at": "2026-09-06T10:56:38+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/new-york-2026-09-06-batch-band2.osm.pbf",
  "osm_snapshot": "",
  "run_id": "ny-run3-260906",
  "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, NY_SouthEast4County_A22 (collected 2022)",
  "elevation_tile_ids": [
   "x56y466"
  ],
  "climb_origin": "discovered",
  "canopy_source": {
   "kind": "ept_corridor_max_return",
   "ept_source": "https://s3-us-west-2.amazonaws.com/usgs-lidar-public/NY_SE4County_1_A22",
   "ept_crs": "EPSG:3857",
   "station_coverage": 0.999,
   "cell_ground_m": 1.0,
   "nodes_failed": 0
  },
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Shandaken",
  "county": "New York"
 }
}