{
 "ocl_version": "0.1.0",
 "name": "Castle Hill Road",
 "slug": "castle-hill-road",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 25.594344218364995,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 424.0,
   "end_distance_m": 426.0,
   "start_elevation_m": 277.41040934905436,
   "end_elevation_m": 277.92229623342166,
   "min_gradient_pct": -18.823331192839987
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 25.11262474711013,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 734.0,
   "end_distance_m": 737.0,
   "start_elevation_m": 333.6202321726346,
   "end_elevation_m": 334.3736109150479,
   "min_gradient_pct": -16.122313538816496
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 24.472142907537773,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 734.0,
   "end_distance_m": 739.0,
   "start_elevation_m": 333.6202321726346,
   "end_elevation_m": 334.8438393180115,
   "min_gradient_pct": -16.246455005825737
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 23.4371983099345,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 734.0,
   "end_distance_m": 744.0,
   "start_elevation_m": 333.6202321726346,
   "end_elevation_m": 335.96395200362804,
   "min_gradient_pct": -12.813395141492379
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.93746256189229,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 728.0,
   "end_distance_m": 748.0,
   "start_elevation_m": 332.52567293702566,
   "end_elevation_m": 336.9131654494041,
   "min_gradient_pct": -9.215150847962263
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.815775052579056,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 724.0,
   "end_distance_m": 749.0,
   "start_elevation_m": 331.6910704516332,
   "end_elevation_m": 337.145014214778,
   "min_gradient_pct": -8.138622733761167
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.891535289146645,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 406.0,
   "end_distance_m": 456.0,
   "start_elevation_m": 273.73616265892906,
   "end_elevation_m": 284.1819303035024,
   "min_gradient_pct": -4.262554642802343
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 20.6501574155256,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 410.0,
   "end_distance_m": 510.0,
   "start_elevation_m": 274.5358851626258,
   "end_elevation_m": 295.1860425781514,
   "min_gradient_pct": -2.4643723500765873
  }
 ],
 "shape": {
  "ascent_concentration": 0.39,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 602.0,
  "shape_class": "sustained"
 },
 "length_m": 942.952131662441,
 "start_elevation_m": 226.29120412719936,
 "end_elevation_m": 336.1305227497354,
 "endpoint_gain_m": 109.83931862253604,
 "overall_gradient_pct": 11.648451170992892,
 "accumulated_ascent_m": 114.59137893536001,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 24.472142907537773,
   "start_distance_m": 734.0,
   "end_distance_m": 739.0,
   "midpoint_distance_m": 736.5,
   "start_elevation_m": 333.6202321726346,
   "end_elevation_m": 334.8438393180115,
   "start_xy": [
    679779.9156293529,
    4773896.357192581
   ],
   "end_xy": [
    679775.4535182922,
    4773894.137248742
   ]
  },
  "max_10m": {
   "gradient_pct": 23.4371983099345,
   "start_distance_m": 734.0,
   "end_distance_m": 744.0,
   "midpoint_distance_m": 739.0,
   "start_elevation_m": 333.6202321726346,
   "end_elevation_m": 335.96395200362804,
   "start_xy": [
    679779.9156293529,
    4773896.357192581
   ],
   "end_xy": [
    679771.3059582579,
    4773891.344804417
   ]
  },
  "max_20m": {
   "gradient_pct": 21.93746256189229,
   "start_distance_m": 728.0,
   "end_distance_m": 748.0,
   "midpoint_distance_m": 738.0,
   "start_elevation_m": 332.52567293702566,
   "end_elevation_m": 336.9131654494041,
   "start_xy": [
    679785.4464571063,
    4773898.683120282
   ],
   "end_xy": [
    679767.9876029631,
    4773889.111305733
   ]
  },
  "max_25m": {
   "gradient_pct": 21.815775052579056,
   "start_distance_m": 724.0,
   "end_distance_m": 749.0,
   "midpoint_distance_m": 736.5,
   "start_elevation_m": 331.6910704516332,
   "end_elevation_m": 337.145014214778,
   "start_xy": [
    679789.1550050551,
    4773900.176868768
   ],
   "end_xy": [
    679767.1580553242,
    4773888.55286979
   ]
  },
  "max_50m": {
   "gradient_pct": 20.891535289146645,
   "start_distance_m": 406.0,
   "end_distance_m": 456.0,
   "midpoint_distance_m": 431.0,
   "start_elevation_m": 273.73616265892906,
   "end_elevation_m": 284.1819303035024,
   "start_xy": [
    680099.4560893083,
    4773884.168160082
   ],
   "end_xy": [
    680050.5960922289,
    4773888.282302831
   ]
  },
  "max_100m": {
   "gradient_pct": 20.6501574155256,
   "start_distance_m": 410.0,
   "end_distance_m": 510.0,
   "midpoint_distance_m": 460.0,
   "start_elevation_m": 274.5358851626258,
   "end_elevation_m": 295.1860425781514,
   "start_xy": [
    680095.5824913514,
    4773883.175127661
   ],
   "end_xy": [
    679997.916110095,
    4773900.115971839
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -16.246455005825737,
   "start_distance_m": 911.0,
   "end_distance_m": 916.0,
   "midpoint_distance_m": 913.5,
   "start_elevation_m": 335.68724352899835,
   "end_elevation_m": 334.87492077870706,
   "start_xy": [
    679657.4542207414,
    4773999.425729326
   ],
   "end_xy": [
    679654.0355604923,
    4774003.0743944375
   ]
  },
  "min_10m": {
   "gradient_pct": -12.813395141492379,
   "start_distance_m": 906.0,
   "end_distance_m": 916.0,
   "midpoint_distance_m": 911.0,
   "start_elevation_m": 336.1562602928563,
   "end_elevation_m": 334.87492077870706,
   "start_xy": [
    679661.2458429288,
    4773996.173707618
   ],
   "end_xy": [
    679654.0355604923,
    4774003.0743944375
   ]
  },
  "min_20m": {
   "gradient_pct": -9.215150847962263,
   "start_distance_m": 900.0,
   "end_distance_m": 920.0,
   "midpoint_distance_m": 910.0,
   "start_elevation_m": 336.39993007511123,
   "end_elevation_m": 334.5568999055188,
   "start_xy": [
    679665.9002622281,
    4773992.387366667
   ],
   "end_xy": [
    679651.947199657,
    4774006.464073341
   ]
  },
  "min_25m": {
   "gradient_pct": -8.138622733761167,
   "start_distance_m": 897.0,
   "end_distance_m": 922.0,
   "midpoint_distance_m": 909.5,
   "start_elevation_m": 336.5049305522414,
   "end_elevation_m": 334.4702748688011,
   "start_xy": [
    679668.2197928929,
    4773990.484923439
   ],
   "end_xy": [
    679651.0171822034,
    4774008.234685484
   ]
  },
  "min_50m": {
   "gradient_pct": -4.262554642802343,
   "start_distance_m": 801.0,
   "end_distance_m": 851.0,
   "midpoint_distance_m": 826.0,
   "start_elevation_m": 338.09464708686363,
   "end_elevation_m": 335.96336976546246,
   "start_xy": [
    679722.7959291571,
    4773912.342079698
   ],
   "end_xy": [
    679697.0583671611,
    4773954.796658126
   ]
  },
  "min_100m": {
   "gradient_pct": -2.4643723500765873,
   "start_distance_m": 820.0,
   "end_distance_m": 920.0,
   "midpoint_distance_m": 870.0,
   "start_elevation_m": 337.02127225559536,
   "end_elevation_m": 334.5568999055188,
   "start_xy": [
    679712.5688249206,
    4773928.111769451
   ],
   "end_xy": [
    679651.947199657,
    4774006.464073341
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 25.594344218364995,
   "start_distance_m": 424.0,
   "end_distance_m": 426.0,
   "midpoint_distance_m": 425.0,
   "start_elevation_m": 277.41040934905436,
   "end_elevation_m": 277.92229623342166,
   "start_xy": [
    680081.8481497731,
    4773881.653088615
   ],
   "end_xy": [
    680079.8579766206,
    4773881.851105844
   ]
  },
  "max_3m": {
   "gradient_pct": 25.11262474711013,
   "start_distance_m": 734.0,
   "end_distance_m": 737.0,
   "midpoint_distance_m": 735.5,
   "start_elevation_m": 333.6202321726346,
   "end_elevation_m": 334.3736109150479,
   "start_xy": [
    679779.9156293529,
    4773896.357192581
   ],
   "end_xy": [
    679777.157505792,
    4773895.178705408
   ]
  }
 },
 "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": []
 },
 "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/vt/USGS_1M_18_x67y478_VT_Statewide_A23.tif",
   "data/cache/usa/vt/USGS_1M_18_x68y478_VT_Statewide_A23.tif"
  ],
  "calculated_at": "2026-09-03T13:56:26+00:00",
  "road_source": "/mnt/HC_Volume_106727764/site-corpus-fresh/us/castle-hill-road/castle-hill-road.geojson",
  "run_id": "canopy-all-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, VT_Statewide_A23 (collected 2023)",
  "elevation_tile_ids": [
   "x67y478",
   "x68y478"
  ],
  "climb_origin": "discovered",
  "canopy_check": "unavailable \u2014 EPT corridor failed: VT_Statewide_2_A23: no EPT nodes intersect the corridor; VT_Statewide_1_A23: no EPT nodes intersect the corridor",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing.html"
 },
 "area": {
  "place": "Jamaica",
  "county": "Vermont"
 }
}