{
 "ocl_version": "0.1.0",
 "name": "Dillon Hill Road",
 "slug": "dillon-hill-road",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 23.245993575979185,
   "diagnostic": true,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 131.0,
   "end_distance_m": 133.0,
   "start_elevation_m": 155.59929564944673,
   "end_elevation_m": 156.06421552096631,
   "min_gradient_pct": -6.979679189466026,
   "suppressed_max_gradient_pct": 35.62891279068623,
   "suppressed_location_m": [
    114.0,
    116.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 21.877807398207477,
   "diagnostic": true,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 13.0,
   "end_distance_m": 16.0,
   "start_elevation_m": 138.70416420712203,
   "end_elevation_m": 139.36049842906826,
   "min_gradient_pct": -5.86411268986448,
   "suppressed_max_gradient_pct": 33.27923307094428,
   "suppressed_location_m": [
    113.0,
    116.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 21.167552046878768,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 12.0,
   "end_distance_m": 17.0,
   "start_elevation_m": 138.5017866253442,
   "end_elevation_m": 139.56016422768815,
   "min_gradient_pct": -4.868712399572814,
   "suppressed_max_gradient_pct": 31.591608010719483,
   "suppressed_location_m": [
    112.0,
    117.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 20.425204439072502,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 12.0,
   "end_distance_m": 22.0,
   "start_elevation_m": 138.5017866253442,
   "end_elevation_m": 140.54430706925146,
   "min_gradient_pct": -2.6665370994911086,
   "suppressed_max_gradient_pct": 28.73626964040085,
   "suppressed_location_m": [
    111.0,
    121.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 18.228177530847773,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 8.0,
   "end_distance_m": 28.0,
   "start_elevation_m": 137.78398466633845,
   "end_elevation_m": 141.429620172508,
   "min_gradient_pct": -1.9344536013420566,
   "suppressed_max_gradient_pct": 22.303783750677297,
   "suppressed_location_m": [
    102.0,
    122.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 17.56123086681771,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 7.0,
   "end_distance_m": 32.0,
   "start_elevation_m": 137.6398497568142,
   "end_elevation_m": 142.0301574735186,
   "min_gradient_pct": -1.8084176231677702,
   "suppressed_max_gradient_pct": 20.5061735509006,
   "suppressed_location_m": [
    97.0,
    122.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 15.251667704886756,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 6.0,
   "end_distance_m": 56.0,
   "start_elevation_m": 137.5147934893459,
   "end_elevation_m": 145.14062734178927,
   "min_gradient_pct": -1.1231410540161164,
   "suppressed_max_gradient_pct": 16.16561742075055,
   "suppressed_location_m": [
    72.0,
    122.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 8.98286115362123,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 494.0,
   "end_distance_m": 594.0,
   "start_elevation_m": 170.84540012485553,
   "end_elevation_m": 179.82826127847676,
   "min_gradient_pct": -0.04881816982069154,
   "suppressed_max_gradient_pct": 14.440079009654653,
   "suppressed_location_m": [
    21.0,
    121.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.367,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 127.0,
  "shape_class": "sustained"
 },
 "length_m": 2126.7055682437217,
 "start_elevation_m": 137.2898144793561,
 "end_elevation_m": 239.24900185946572,
 "endpoint_gain_m": 101.95918738010963,
 "overall_gradient_pct": 4.794231458391755,
 "accumulated_ascent_m": 104.07915768022548,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 21.167552046878768,
   "start_distance_m": 12.0,
   "end_distance_m": 17.0,
   "midpoint_distance_m": 14.5,
   "start_elevation_m": 138.5017866253442,
   "end_elevation_m": 139.56016422768815,
   "start_xy": [
    631820.2459344161,
    4779218.714303986
   ],
   "end_xy": [
    631818.8167846834,
    4779223.473394672
   ]
  },
  "max_10m": {
   "gradient_pct": 20.425204439072502,
   "start_distance_m": 12.0,
   "end_distance_m": 22.0,
   "midpoint_distance_m": 17.0,
   "start_elevation_m": 138.5017866253442,
   "end_elevation_m": 140.54430706925146,
   "start_xy": [
    631820.2459344161,
    4779218.714303986
   ],
   "end_xy": [
    631816.4249071431,
    4779227.864170756
   ]
  },
  "max_20m": {
   "gradient_pct": 18.228177530847773,
   "start_distance_m": 8.0,
   "end_distance_m": 28.0,
   "midpoint_distance_m": 18.0,
   "start_elevation_m": 137.78398466633845,
   "end_elevation_m": 141.429620172508,
   "start_xy": [
    631821.0920400858,
    4779214.804815264
   ],
   "end_xy": [
    631813.1008901321,
    4779232.624747628
   ]
  },
  "max_25m": {
   "gradient_pct": 17.56123086681771,
   "start_distance_m": 7.0,
   "end_distance_m": 32.0,
   "midpoint_distance_m": 19.5,
   "start_elevation_m": 137.6398497568142,
   "end_elevation_m": 142.0301574735186,
   "start_xy": [
    631821.3040958763,
    4779213.827557703
   ],
   "end_xy": [
    631809.1649469523,
    4779233.337733174
   ]
  },
  "max_50m": {
   "gradient_pct": 15.251667704886756,
   "start_distance_m": 6.0,
   "end_distance_m": 56.0,
   "midpoint_distance_m": 31.0,
   "start_elevation_m": 137.5147934893459,
   "end_elevation_m": 145.14062734178927,
   "start_xy": [
    631821.5159446701,
    4779212.850255247
   ],
   "end_xy": [
    631786.1709606646,
    4779239.97342212
   ]
  },
  "max_100m": {
   "gradient_pct": 8.98286115362123,
   "start_distance_m": 494.0,
   "end_distance_m": 594.0,
   "midpoint_distance_m": 544.0,
   "start_elevation_m": 170.84540012485553,
   "end_elevation_m": 179.82826127847676,
   "start_xy": [
    631492.8494935972,
    4779415.352103462
   ],
   "end_xy": [
    631525.848295535,
    4779509.52743279
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -4.868712399572814,
   "start_distance_m": 385.0,
   "end_distance_m": 390.0,
   "midpoint_distance_m": 387.5,
   "start_elevation_m": 167.6849407820899,
   "end_elevation_m": 167.44150516211127,
   "start_xy": [
    631507.4629076292,
    4779312.01799093
   ],
   "end_xy": [
    631503.7161830141,
    4779315.318242302
   ]
  },
  "min_10m": {
   "gradient_pct": -2.6665370994911086,
   "start_distance_m": 382.0,
   "end_distance_m": 392.0,
   "midpoint_distance_m": 387.0,
   "start_elevation_m": 167.69323921634765,
   "end_elevation_m": 167.42658550639854,
   "start_xy": [
    631509.7692708123,
    4779310.099480456
   ],
   "end_xy": [
    631502.6341624556,
    4779317.0002742605
   ]
  },
  "min_20m": {
   "gradient_pct": -1.9344536013420566,
   "start_distance_m": 1684.0,
   "end_distance_m": 1704.0,
   "midpoint_distance_m": 1694.0,
   "start_elevation_m": 221.77573705752454,
   "end_elevation_m": 221.38884633725613,
   "start_xy": [
    631528.6721788214,
    4780577.3598767985
   ],
   "end_xy": [
    631524.2302921098,
    4780596.860379247
   ]
  },
  "min_25m": {
   "gradient_pct": -1.8084176231677702,
   "start_distance_m": 1679.0,
   "end_distance_m": 1704.0,
   "midpoint_distance_m": 1691.5,
   "start_elevation_m": 221.84095074304807,
   "end_elevation_m": 221.38884633725613,
   "start_xy": [
    631529.7822293299,
    4780572.4846549705
   ],
   "end_xy": [
    631524.2302921098,
    4780596.860379247
   ]
  },
  "min_50m": {
   "gradient_pct": -1.1231410540161164,
   "start_distance_m": 1666.0,
   "end_distance_m": 1716.0,
   "midpoint_distance_m": 1691.0,
   "start_elevation_m": 221.86552612360705,
   "end_elevation_m": 221.303955596599,
   "start_xy": [
    631532.6702618637,
    4780559.809512084
   ],
   "end_xy": [
    631521.5652202836,
    4780608.5606947
   ]
  },
  "min_100m": {
   "gradient_pct": -0.04881816982069154,
   "start_distance_m": 1633.0,
   "end_distance_m": 1733.0,
   "midpoint_distance_m": 1683.0,
   "start_elevation_m": 221.48678398292049,
   "end_elevation_m": 221.4379658130998,
   "start_xy": [
    631539.9992305622,
    4780527.633649557
   ],
   "end_xy": [
    631517.789363818,
    4780625.136064312
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 23.245993575979185,
   "start_distance_m": 131.0,
   "end_distance_m": 133.0,
   "midpoint_distance_m": 132.0,
   "start_elevation_m": 155.59929564944673,
   "end_elevation_m": 156.06421552096631,
   "start_xy": [
    631716.254421118,
    4779259.997397295
   ],
   "end_xy": [
    631714.2575808511,
    4779259.885641674
   ]
  },
  "max_3m": {
   "gradient_pct": 21.877807398207477,
   "start_distance_m": 13.0,
   "end_distance_m": 16.0,
   "midpoint_distance_m": 14.5,
   "start_elevation_m": 138.70416420712203,
   "end_elevation_m": 139.36049842906826,
   "start_xy": [
    631820.0350403638,
    4779219.691812911
   ],
   "end_xy": [
    631819.2941094742,
    4779222.594673643
   ]
  }
 },
 "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": {
  "texture_suppression": {
   "masked_fraction": 0.014,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0,
    50.0,
    100.0
   ],
   "windows_unresolved": []
  },
  "texture_windows": {
   "rounds": 1,
   "windows_masked": [
    {
     "window_m": 25.0,
     "start_m": 97.0,
     "end_m": 122.0,
     "raw_pct": 20.51,
     "reason": "hump"
    },
    {
     "window_m": 20.0,
     "start_m": 102.0,
     "end_m": 122.0,
     "raw_pct": 22.3,
     "reason": "hump"
    },
    {
     "window_m": 10.0,
     "start_m": 111.0,
     "end_m": 121.0,
     "raw_pct": 28.74,
     "reason": "hump"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.498,
   "obstruction_max_height_m": 38.44,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    95.0,
    124.0
   ]
  ],
  "review": [],
  "extent": [
   "may_start_earlier"
  ]
 },
 "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_x63y478_NY_Hudson_D22.tif",
   "data/cache/usa/ny/USGS_1M_18_x63y479_NY_Hudson_D22.tif"
  ],
  "calculated_at": "2026-09-12T00:11:06+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "output/texture-us-ny/batch-usa-rchunk05.pbf",
  "osm_snapshot": "",
  "run_id": "texture-us-ny-260911",
  "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_Hudson_D22 (collected 2022)",
  "elevation_tile_ids": [
   "x63y478",
   "x63y479"
  ],
  "climb_origin": "discovered",
  "canopy_source": {
   "kind": "ept_corridor_max_return",
   "ept_source": "https://s3-us-west-2.amazonaws.com/usgs-lidar-public/NY_Hudson_1_D22",
   "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": "Salem",
  "county": "New York"
 }
}