{
 "ocl_version": "0.1.0",
 "name": "Tug Mountain Road",
 "slug": "tug-mountain-road",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 31.901368667558927,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 240.0,
   "end_distance_m": 242.0,
   "start_elevation_m": 694.8018449568833,
   "end_elevation_m": 695.4398723302345,
   "min_gradient_pct": -17.47004404641075
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 31.185384771564866,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 239.0,
   "end_distance_m": 242.0,
   "start_elevation_m": 694.5043107870875,
   "end_elevation_m": 695.4398723302345,
   "min_gradient_pct": -13.737529239991394
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 30.439319707745653,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 239.0,
   "end_distance_m": 244.0,
   "start_elevation_m": 694.5043107870875,
   "end_elevation_m": 696.0262767724748,
   "min_gradient_pct": -10.012673317692133
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 29.441895832560476,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 238.0,
   "end_distance_m": 248.0,
   "start_elevation_m": 694.2275122024275,
   "end_elevation_m": 697.1717017856836,
   "min_gradient_pct": -6.553268242674903
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 26.38856140382586,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 232.0,
   "end_distance_m": 252.0,
   "start_elevation_m": 692.8723022032115,
   "end_elevation_m": 698.1500144839766,
   "min_gradient_pct": -3.2518958820202215
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 25.554095986229186,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 230.0,
   "end_distance_m": 255.0,
   "start_elevation_m": 692.4024029643234,
   "end_elevation_m": 698.7909269608807,
   "min_gradient_pct": -2.2270554361380164
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 22.784562720957183,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 9.0,
   "end_distance_m": 59.0,
   "start_elevation_m": 651.8341479204128,
   "end_elevation_m": 663.2264292808914,
   "min_gradient_pct": 1.7948994887717618
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 20.804463160585897,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 210.0,
   "end_distance_m": 310.0,
   "start_elevation_m": 688.6247320800315,
   "end_elevation_m": 709.4291952406174,
   "min_gradient_pct": 5.179831023971474
  }
 ],
 "shape": {
  "ascent_concentration": 0.331,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 328.0,
  "shape_class": "sustained"
 },
 "length_m": 403.2144850999563,
 "start_elevation_m": 650.8614543388794,
 "end_elevation_m": 713.2832911508789,
 "endpoint_gain_m": 62.42183681199947,
 "overall_gradient_pct": 15.481050190080644,
 "accumulated_ascent_m": 63.327303389281724,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 30.439319707745653,
   "start_distance_m": 239.0,
   "end_distance_m": 244.0,
   "midpoint_distance_m": 241.5,
   "start_elevation_m": 694.5043107870875,
   "end_elevation_m": 696.0262767724748,
   "start_xy": [
    262152.5952371218,
    4840857.894924051
   ],
   "end_xy": [
    262154.5602107107,
    4840862.492627591
   ]
  },
  "max_10m": {
   "gradient_pct": 29.441895832560476,
   "start_distance_m": 238.0,
   "end_distance_m": 248.0,
   "midpoint_distance_m": 243.0,
   "start_elevation_m": 694.2275122024275,
   "end_elevation_m": 697.1717017856836,
   "start_xy": [
    262152.2021272993,
    4840856.975432539
   ],
   "end_xy": [
    262156.13195003034,
    4840866.170889119
   ]
  },
  "max_20m": {
   "gradient_pct": 26.38856140382586,
   "start_distance_m": 232.0,
   "end_distance_m": 252.0,
   "midpoint_distance_m": 242.0,
   "start_elevation_m": 692.8723022032115,
   "end_elevation_m": 698.1500144839766,
   "start_xy": [
    262151.6024512466,
    4840851.332183705
   ],
   "end_xy": [
    262157.66775110835,
    4840869.864293141
   ]
  },
  "max_25m": {
   "gradient_pct": 25.554095986229186,
   "start_distance_m": 230.0,
   "end_distance_m": 255.0,
   "midpoint_distance_m": 242.5,
   "start_elevation_m": 692.4024029643234,
   "end_elevation_m": 698.7909269608807,
   "start_xy": [
    262152.2253545054,
    4840849.431659824
   ],
   "end_xy": [
    262158.8167548736,
    4840872.635536562
   ]
  },
  "max_50m": {
   "gradient_pct": 22.784562720957183,
   "start_distance_m": 9.0,
   "end_distance_m": 59.0,
   "midpoint_distance_m": 34.0,
   "start_elevation_m": 651.8341479204128,
   "end_elevation_m": 663.2264292808914,
   "start_xy": [
    262257.0497644167,
    4840700.987061786
   ],
   "end_xy": [
    262247.10862981406,
    4840748.91527027
   ]
  },
  "max_100m": {
   "gradient_pct": 20.804463160585897,
   "start_distance_m": 210.0,
   "end_distance_m": 310.0,
   "midpoint_distance_m": 260.0,
   "start_elevation_m": 688.6247320800315,
   "end_elevation_m": 709.4291952406174,
   "start_xy": [
    262162.07564398623,
    4840832.705623908
   ],
   "end_xy": [
    262170.3753640567,
    4840926.0416288925
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -10.012673317692133,
   "start_distance_m": 327.0,
   "end_distance_m": 332.0,
   "midpoint_distance_m": 329.5,
   "start_elevation_m": 711.9665138411812,
   "end_elevation_m": 711.4658801752965,
   "start_xy": [
    262169.1883675839,
    4840942.596927176
   ],
   "end_xy": [
    262167.67181308713,
    4840947.356144864
   ]
  },
  "min_10m": {
   "gradient_pct": -6.553268242674903,
   "start_distance_m": 327.0,
   "end_distance_m": 337.0,
   "midpoint_distance_m": 332.0,
   "start_elevation_m": 711.9665138411812,
   "end_elevation_m": 711.3111870169137,
   "start_xy": [
    262169.1883675839,
    4840942.596927176
   ],
   "end_xy": [
    262163.86482311325,
    4840950.509476286
   ]
  },
  "min_20m": {
   "gradient_pct": -3.2518958820202215,
   "start_distance_m": 327.0,
   "end_distance_m": 347.0,
   "midpoint_distance_m": 337.0,
   "start_elevation_m": 711.9665138411812,
   "end_elevation_m": 711.3161346647771,
   "start_xy": [
    262169.1883675839,
    4840942.596927176
   ],
   "end_xy": [
    262155.7742948503,
    4840956.383758592
   ]
  },
  "min_25m": {
   "gradient_pct": -2.2270554361380164,
   "start_distance_m": 327.0,
   "end_distance_m": 352.0,
   "midpoint_distance_m": 339.5,
   "start_elevation_m": 711.9665138411812,
   "end_elevation_m": 711.4097499821466,
   "start_xy": [
    262169.1883675839,
    4840942.596927176
   ],
   "end_xy": [
    262151.021680765,
    4840957.876963938
   ]
  },
  "min_50m": {
   "gradient_pct": 1.7948994887717618,
   "start_distance_m": 327.0,
   "end_distance_m": 377.0,
   "midpoint_distance_m": 352.0,
   "start_elevation_m": 711.9665138411812,
   "end_elevation_m": 712.863963585567,
   "start_xy": [
    262169.1883675839,
    4840942.596927176
   ],
   "end_xy": [
    262127.77319284488,
    4840953.056955866
   ]
  },
  "min_100m": {
   "gradient_pct": 5.179831023971474,
   "start_distance_m": 303.0,
   "end_distance_m": 403.0,
   "midpoint_distance_m": 353.0,
   "start_elevation_m": 708.1025357257577,
   "end_elevation_m": 713.2823667497291,
   "start_xy": [
    262169.4003963952,
    4840919.109859218
   ],
   "end_xy": [
    262107.20480692998,
    4840937.183318096
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 31.901368667558927,
   "start_distance_m": 240.0,
   "end_distance_m": 242.0,
   "midpoint_distance_m": 241.0,
   "start_elevation_m": 694.8018449568833,
   "end_elevation_m": 695.4398723302345,
   "start_xy": [
    262152.9881551029,
    4840858.814497557
   ],
   "end_xy": [
    262153.77418290684,
    4840860.653562574
   ]
  },
  "max_3m": {
   "gradient_pct": 31.185384771564866,
   "start_distance_m": 239.0,
   "end_distance_m": 242.0,
   "midpoint_distance_m": 240.5,
   "start_elevation_m": 694.5043107870875,
   "end_elevation_m": 695.4398723302345,
   "start_xy": [
    262152.5952371218,
    4840857.894924051
   ],
   "end_xy": [
    262153.77418290684,
    4840860.653562574
   ]
  }
 },
 "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": 0.042,
   "obstruction_max_height_m": 7.74,
   "flagged_windows_m": []
  },
  "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:26919",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/usa/nh/USGS_one_meter_x26y485_NH_CT_RiverNorthL6_2015.tif"
  ],
  "calculated_at": "2026-09-03T21:37:06+00:00",
  "road_source": "/mnt/HC_Volume_106727764/site-corpus-fresh/us/tug-mountain-road/tug-mountain-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, NH_CT_RiverNorthL6_2015 (collected 2015)",
  "elevation_tile_ids": [
   "x26y485"
  ],
  "climb_origin": "discovered",
  "canopy_source": {
   "kind": "ept_corridor_max_return",
   "ept_source": "https://usgs-lidar-public.s3-us-west-2.amazonaws.com/USGS_LPC_CT_River_Lot6_Winnipesaulee_2015_LAS_2017",
   "ept_crs": "EPSG:3857",
   "station_coverage": 0.968,
   "cell_ground_m": 1.0,
   "nodes_failed": 0
  },
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing.html"
 },
 "area": {
  "place": "Orange",
  "county": "New Hampshire"
 }
}