{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (43.1460, -73.1051)",
 "slug": "discovered-lane-43-1460-73-1051",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 48.73456749670879,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1030.0,
   "end_distance_m": 1032.0,
   "start_elevation_m": 357.59806867276694,
   "end_elevation_m": 358.5727600227011,
   "min_gradient_pct": -28.797937487053105
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 45.37158918113278,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1624.0,
   "end_distance_m": 1627.0,
   "start_elevation_m": 422.2491705126499,
   "end_elevation_m": 423.6103181880839,
   "min_gradient_pct": -28.77959547586026
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 42.46889681933453,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1624.0,
   "end_distance_m": 1629.0,
   "start_elevation_m": 422.2491705126499,
   "end_elevation_m": 424.37261535361665,
   "min_gradient_pct": -27.319483790327013
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 37.543630663611225,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1620.0,
   "end_distance_m": 1630.0,
   "start_elevation_m": 420.9595886303736,
   "end_elevation_m": 424.71395169673474,
   "min_gradient_pct": -21.26701301196931
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 33.35219518429881,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1909.0,
   "end_distance_m": 1929.0,
   "start_elevation_m": 461.78508663723704,
   "end_elevation_m": 468.4555256740968,
   "min_gradient_pct": -17.11352426777296
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 31.158082531085256,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1908.0,
   "end_distance_m": 1933.0,
   "start_elevation_m": 461.5434793353079,
   "end_elevation_m": 469.3329999680792,
   "min_gradient_pct": -14.797720022908834
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 28.190183932060336,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1909.0,
   "end_distance_m": 1959.0,
   "start_elevation_m": 461.78508663723704,
   "end_elevation_m": 475.8801786032672,
   "min_gradient_pct": -11.772514929767794
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 25.43494056694721,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1870.0,
   "end_distance_m": 1970.0,
   "start_elevation_m": 452.6678064406379,
   "end_elevation_m": 478.1027470075851,
   "min_gradient_pct": -8.56560313999853
  }
 ],
 "shape": {
  "ascent_concentration": 0.398,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 192.0,
  "shape_class": "sustained"
 },
 "length_m": 2293.424571192037,
 "start_elevation_m": 296.7945584587294,
 "end_elevation_m": 496.31691539309963,
 "endpoint_gain_m": 199.52235693437024,
 "overall_gradient_pct": 8.69975666261681,
 "accumulated_ascent_m": 226.8959144826593,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 42.46889681933453,
   "start_distance_m": 1624.0,
   "end_distance_m": 1629.0,
   "midpoint_distance_m": 1626.5,
   "start_elevation_m": 422.2491705126499,
   "end_elevation_m": 424.37261535361665,
   "start_xy": [
    653845.6397802002,
    4779106.513182929
   ],
   "end_xy": [
    653841.9835189057,
    4779109.92371834
   ]
  },
  "max_10m": {
   "gradient_pct": 37.543630663611225,
   "start_distance_m": 1620.0,
   "end_distance_m": 1630.0,
   "midpoint_distance_m": 1625.0,
   "start_elevation_m": 420.9595886303736,
   "end_elevation_m": 424.71395169673474,
   "start_xy": [
    653848.5649987536,
    4779103.784979303
   ],
   "end_xy": [
    653841.2523306005,
    4779110.605894023
   ]
  },
  "max_20m": {
   "gradient_pct": 33.35219518429881,
   "start_distance_m": 1909.0,
   "end_distance_m": 1929.0,
   "midpoint_distance_m": 1919.0,
   "start_elevation_m": 461.78508663723704,
   "end_elevation_m": 468.4555256740968,
   "start_xy": [
    653679.1492756368,
    4779330.104254301
   ],
   "end_xy": [
    653676.0384512093,
    4779349.860840033
   ]
  },
  "max_25m": {
   "gradient_pct": 31.158082531085256,
   "start_distance_m": 1908.0,
   "end_distance_m": 1933.0,
   "midpoint_distance_m": 1920.5,
   "start_elevation_m": 461.5434793353079,
   "end_elevation_m": 469.3329999680792,
   "start_xy": [
    653679.3045235599,
    4779329.116378857
   ],
   "end_xy": [
    653675.4165517859,
    4779353.81219894
   ]
  },
  "max_50m": {
   "gradient_pct": 28.190183932060336,
   "start_distance_m": 1909.0,
   "end_distance_m": 1959.0,
   "midpoint_distance_m": 1934.0,
   "start_elevation_m": 461.78508663723704,
   "end_elevation_m": 475.8801786032672,
   "start_xy": [
    653679.1492756368,
    4779330.104254301
   ],
   "end_xy": [
    653671.373178392,
    4779379.495870184
   ]
  },
  "max_100m": {
   "gradient_pct": 25.43494056694721,
   "start_distance_m": 1870.0,
   "end_distance_m": 1970.0,
   "midpoint_distance_m": 1920.0,
   "start_elevation_m": 452.6678064406379,
   "end_elevation_m": 478.1027470075851,
   "start_xy": [
    653691.254290307,
    4779293.521843368
   ],
   "end_xy": [
    653669.662273585,
    4779390.361999818
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -27.319483790327013,
   "start_distance_m": 2131.0,
   "end_distance_m": 2136.0,
   "midpoint_distance_m": 2133.5,
   "start_elevation_m": 490.155081802789,
   "end_elevation_m": 488.7891076132727,
   "start_xy": [
    653597.1031500172,
    4779507.9834810225
   ],
   "end_xy": [
    653592.1217064405,
    4779508.413850944
   ]
  },
  "min_10m": {
   "gradient_pct": -21.26701301196931,
   "start_distance_m": 2130.0,
   "end_distance_m": 2140.0,
   "midpoint_distance_m": 2135.0,
   "start_elevation_m": 490.3654454762541,
   "end_elevation_m": 488.23874417505715,
   "start_xy": [
    653598.0994479146,
    4779507.897513018
   ],
   "end_xy": [
    653588.136584846,
    4779508.758529822
   ]
  },
  "min_20m": {
   "gradient_pct": -17.11352426777296,
   "start_distance_m": 2129.0,
   "end_distance_m": 2149.0,
   "midpoint_distance_m": 2139.0,
   "start_elevation_m": 490.46308655537644,
   "end_elevation_m": 487.04038170182184,
   "start_xy": [
    653599.0957433202,
    4779507.811516139
   ],
   "end_xy": [
    653579.1699260771,
    4779509.532500358
   ]
  },
  "min_25m": {
   "gradient_pct": -14.797720022908834,
   "start_distance_m": 2129.0,
   "end_distance_m": 2154.0,
   "midpoint_distance_m": 2141.5,
   "start_elevation_m": 490.46308655537644,
   "end_elevation_m": 486.7636565496492,
   "start_xy": [
    653599.0957433202,
    4779507.811516139
   ],
   "end_xy": [
    653574.1884514622,
    4779509.962512713
   ]
  },
  "min_50m": {
   "gradient_pct": -11.772514929767794,
   "start_distance_m": 2129.0,
   "end_distance_m": 2179.0,
   "midpoint_distance_m": 2154.0,
   "start_elevation_m": 490.46308655537644,
   "end_elevation_m": 484.57682909049254,
   "start_xy": [
    653599.0957433202,
    4779507.811516139
   ],
   "end_xy": [
    653549.2812433131,
    4779512.114472967
   ]
  },
  "min_100m": {
   "gradient_pct": -8.56560313999853,
   "start_distance_m": 2094.0,
   "end_distance_m": 2194.0,
   "midpoint_distance_m": 2144.0,
   "start_elevation_m": 492.0856041527134,
   "end_elevation_m": 483.5200010127149,
   "start_xy": [
    653633.3547847378,
    4779503.318480561
   ],
   "end_xy": [
    653534.3368194285,
    4779513.404509568
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 48.73456749670879,
   "start_distance_m": 1030.0,
   "end_distance_m": 1032.0,
   "midpoint_distance_m": 1031.0,
   "start_elevation_m": 357.59806867276694,
   "end_elevation_m": 358.5727600227011,
   "start_xy": [
    654223.0496008442,
    4778788.617784225
   ],
   "end_xy": [
    654221.207239686,
    4778789.396054856
   ]
  },
  "max_3m": {
   "gradient_pct": 45.37158918113278,
   "start_distance_m": 1624.0,
   "end_distance_m": 1627.0,
   "midpoint_distance_m": 1625.5,
   "start_elevation_m": 422.2491705126499,
   "end_elevation_m": 423.6103181880839,
   "start_xy": [
    653845.6397802002,
    4779106.513182929
   ],
   "end_xy": [
    653843.4458701252,
    4779108.55933976
   ]
  }
 },
 "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": [
   "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/vt/USGS_1M_18_x65y478_VT_Statewide_A23.tif"
  ],
  "calculated_at": "2026-09-03T14:48:30+00:00",
  "road_source": "/mnt/HC_Volume_106727764/site-corpus-fresh/us/discovered-lane-43-1460-73-1051/discovered-lane-43-1460-73-1051.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": [
   "x65y478"
  ],
  "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": "Manchester",
  "county": "Vermont"
 }
}