{
 "ocl_version": "0.1.0",
 "name": "Sun Mountain Road",
 "slug": "sun-mountain-road",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 22.147918171395986,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 767.0,
   "end_distance_m": 769.0,
   "start_elevation_m": 308.75930378202224,
   "end_elevation_m": 309.20226214545016,
   "min_gradient_pct": -12.351991214276836
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 22.347761651978242,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 767.0,
   "end_distance_m": 770.0,
   "start_elevation_m": 308.75930378202224,
   "end_elevation_m": 309.4297366315816,
   "min_gradient_pct": -12.352545610919682
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 21.58718448554623,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 765.0,
   "end_distance_m": 770.0,
   "start_elevation_m": 308.3503774073043,
   "end_elevation_m": 309.4297366315816,
   "min_gradient_pct": -11.644372145526631
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 21.008403015666772,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 760.0,
   "end_distance_m": 770.0,
   "start_elevation_m": 307.3288963300149,
   "end_elevation_m": 309.4297366315816,
   "min_gradient_pct": -10.295132142606462
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.232187554439065,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 767.0,
   "end_distance_m": 787.0,
   "start_elevation_m": 308.75930378202224,
   "end_elevation_m": 312.80574129291006,
   "min_gradient_pct": -10.021782878112901
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.27654150002877,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 762.0,
   "end_distance_m": 787.0,
   "start_elevation_m": 307.73660591790286,
   "end_elevation_m": 312.80574129291006,
   "min_gradient_pct": -9.155201238367681
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.603090736267404,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 760.0,
   "end_distance_m": 810.0,
   "start_elevation_m": 307.3288963300149,
   "end_elevation_m": 317.1304416981486,
   "min_gradient_pct": -6.058858951851789
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.90214863539137,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 745.0,
   "end_distance_m": 845.0,
   "start_elevation_m": 304.7299351845796,
   "end_elevation_m": 322.63208381997094,
   "min_gradient_pct": -2.1912822786322295
  }
 ],
 "shape": {
  "ascent_concentration": 0.367,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 213.0,
  "shape_class": "sustained"
 },
 "length_m": 1361.4194220727381,
 "start_elevation_m": 230.6097772453921,
 "end_elevation_m": 361.90290867343424,
 "endpoint_gain_m": 131.29313142804213,
 "overall_gradient_pct": 9.643841515655076,
 "accumulated_ascent_m": 134.61682547326762,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 21.58718448554623,
   "start_distance_m": 765.0,
   "end_distance_m": 770.0,
   "midpoint_distance_m": 767.5,
   "start_elevation_m": 308.3503774073043,
   "end_elevation_m": 309.4297366315816,
   "start_xy": [
    559530.5103601281,
    4650275.543120756
   ],
   "end_xy": [
    559530.9055541215,
    4650280.527478459
   ]
  },
  "max_10m": {
   "gradient_pct": 21.008403015666772,
   "start_distance_m": 760.0,
   "end_distance_m": 770.0,
   "midpoint_distance_m": 765.0,
   "start_elevation_m": 307.3288963300149,
   "end_elevation_m": 309.4297366315816,
   "start_xy": [
    559530.1151661348,
    4650270.558763053
   ],
   "end_xy": [
    559530.9055541215,
    4650280.527478459
   ]
  },
  "max_20m": {
   "gradient_pct": 20.232187554439065,
   "start_distance_m": 767.0,
   "end_distance_m": 787.0,
   "midpoint_distance_m": 777.0,
   "start_elevation_m": 308.75930378202224,
   "end_elevation_m": 312.80574129291006,
   "start_xy": [
    559530.6684377255,
    4650277.536863837
   ],
   "end_xy": [
    559534.4355496339,
    4650297.128476058
   ]
  },
  "max_25m": {
   "gradient_pct": 20.27654150002877,
   "start_distance_m": 762.0,
   "end_distance_m": 787.0,
   "midpoint_distance_m": 774.5,
   "start_elevation_m": 307.73660591790286,
   "end_elevation_m": 312.80574129291006,
   "start_xy": [
    559530.273243732,
    4650272.552506135
   ],
   "end_xy": [
    559534.4355496339,
    4650297.128476058
   ]
  },
  "max_50m": {
   "gradient_pct": 19.603090736267404,
   "start_distance_m": 760.0,
   "end_distance_m": 810.0,
   "midpoint_distance_m": 785.0,
   "start_elevation_m": 307.3288963300149,
   "end_elevation_m": 317.1304416981486,
   "start_xy": [
    559530.1151661348,
    4650270.558763053
   ],
   "end_xy": [
    559539.7825443551,
    4650319.498313953
   ]
  },
  "max_100m": {
   "gradient_pct": 17.90214863539137,
   "start_distance_m": 745.0,
   "end_distance_m": 845.0,
   "midpoint_distance_m": 795.0,
   "start_elevation_m": 304.7299351845796,
   "end_elevation_m": 322.63208381997094,
   "start_xy": [
    559530.7573936554,
    4650255.609513576
   ],
   "end_xy": [
    559547.9192754526,
    4650353.53937162
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -11.644372145526631,
   "start_distance_m": 1342.0,
   "end_distance_m": 1347.0,
   "midpoint_distance_m": 1344.5,
   "start_elevation_m": 363.8410553283949,
   "end_elevation_m": 363.25883672111854,
   "start_xy": [
    559364.3258510234,
    4650613.253326721
   ],
   "end_xy": [
    559359.8122714306,
    4650615.404512268
   ]
  },
  "min_10m": {
   "gradient_pct": -10.295132142606462,
   "start_distance_m": 1342.0,
   "end_distance_m": 1352.0,
   "midpoint_distance_m": 1347.0,
   "start_elevation_m": 363.8410553283949,
   "end_elevation_m": 362.8115421141342,
   "start_xy": [
    559364.3258510234,
    4650613.253326721
   ],
   "end_xy": [
    559355.2621510267,
    4650617.473136012
   ]
  },
  "min_20m": {
   "gradient_pct": -10.021782878112901,
   "start_distance_m": 1341.0,
   "end_distance_m": 1361.0,
   "midpoint_distance_m": 1351.0,
   "start_elevation_m": 363.92824337719753,
   "end_elevation_m": 361.92388680157495,
   "start_xy": [
    559365.228566942,
    4650612.823089611
   ],
   "end_xy": [
    559346.9331517915,
    4650620.88308788
   ]
  },
  "min_25m": {
   "gradient_pct": -9.155201238367681,
   "start_distance_m": 1335.0,
   "end_distance_m": 1360.0,
   "midpoint_distance_m": 1347.5,
   "start_elevation_m": 364.2729805695085,
   "end_elevation_m": 361.98418025991657,
   "start_xy": [
    559370.6448624535,
    4650610.241666954
   ],
   "end_xy": [
    559347.858596151,
    4650620.504204339
   ]
  },
  "min_50m": {
   "gradient_pct": -6.058858951851789,
   "start_distance_m": 1311.0,
   "end_distance_m": 1361.0,
   "midpoint_distance_m": 1336.0,
   "start_elevation_m": 364.95331627750085,
   "end_elevation_m": 361.92388680157495,
   "start_xy": [
    559391.7582863054,
    4650598.927064955
   ],
   "end_xy": [
    559346.9331517915,
    4650620.88308788
   ]
  },
  "min_100m": {
   "gradient_pct": -2.1912822786322295,
   "start_distance_m": 1261.0,
   "end_distance_m": 1361.0,
   "midpoint_distance_m": 1311.0,
   "start_elevation_m": 364.1151690802072,
   "end_elevation_m": 361.92388680157495,
   "start_xy": [
    559430.2365179854,
    4650567.213586939
   ],
   "end_xy": [
    559346.9331517915,
    4650620.88308788
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 22.147918171395986,
   "start_distance_m": 767.0,
   "end_distance_m": 769.0,
   "midpoint_distance_m": 768.0,
   "start_elevation_m": 308.75930378202224,
   "end_elevation_m": 309.20226214545016,
   "start_xy": [
    559530.6684377255,
    4650277.536863837
   ],
   "end_xy": [
    559530.8265153228,
    4650279.530606918
   ]
  },
  "max_3m": {
   "gradient_pct": 22.347761651978242,
   "start_distance_m": 767.0,
   "end_distance_m": 770.0,
   "midpoint_distance_m": 768.5,
   "start_elevation_m": 308.75930378202224,
   "end_elevation_m": 309.4297366315816,
   "start_xy": [
    559530.6684377255,
    4650277.536863837
   ],
   "end_xy": [
    559530.9055541215,
    4650280.527478459
   ]
  }
 },
 "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": 0.245,
   "obstruction_max_height_m": 26.52,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "review": [],
  "extent": [
   "may_start_earlier",
   "descends_at_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_x55y465_NY_SouthEast4County_A22.tif",
   "data/cache/usa/ny/USGS_1M_18_x55y466_NY_SouthEast4County_A22.tif"
  ],
  "calculated_at": "2026-09-06T11:08:26+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": [
   "x55y465",
   "x55y466"
  ],
  "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": 1.0,
   "cell_ground_m": 1.0,
   "nodes_failed": 0
  },
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Olive",
  "county": "New York"
 }
}