{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (44.3344, -70.8682)",
 "slug": "discovered-lane-44-3344-70-8682",
 "confidence": "U",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 54.51289482104187,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 1993.0,
   "end_distance_m": 1995.0,
   "start_elevation_m": 305.72192213302196,
   "end_elevation_m": 306.8121800294428,
   "min_gradient_pct": -52.331354712080724,
   "suppressed_max_gradient_pct": 86.49958700376033,
   "suppressed_location_m": [
    4639.0,
    4641.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 51.530167981290255,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 1992.0,
   "end_distance_m": 1995.0,
   "start_elevation_m": 305.2662749900041,
   "end_elevation_m": 306.8121800294428,
   "min_gradient_pct": -45.694236497659325,
   "suppressed_max_gradient_pct": 84.6261201469493,
   "suppressed_location_m": [
    4638.0,
    4641.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 43.97415484027874,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 1991.0,
   "end_distance_m": 1996.0,
   "start_elevation_m": 304.93650981886367,
   "end_elevation_m": 307.1352175608776,
   "min_gradient_pct": -41.195787776686075,
   "suppressed_max_gradient_pct": 70.43577009520163,
   "suppressed_location_m": [
    4638.0,
    4643.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 40.019469752730856,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 5655.0,
   "end_distance_m": 5665.0,
   "start_elevation_m": 518.6837617387685,
   "end_elevation_m": 522.6857087140415,
   "min_gradient_pct": -37.797850853521595,
   "suppressed_max_gradient_pct": 49.90795151261011,
   "suppressed_location_m": [
    4633.0,
    4643.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 38.58534187059888,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 5655.0,
   "end_distance_m": 5675.0,
   "start_elevation_m": 518.6837617387685,
   "end_elevation_m": 526.4008301128882,
   "min_gradient_pct": -29.39842479621717
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 37.26839827253934,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 5651.0,
   "end_distance_m": 5676.0,
   "start_elevation_m": 517.4450707064998,
   "end_elevation_m": 526.7621702746346,
   "min_gradient_pct": -26.845837679340548
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 36.10916126257757,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 5625.0,
   "end_distance_m": 5675.0,
   "start_elevation_m": 508.34624948159944,
   "end_elevation_m": 526.4008301128882,
   "min_gradient_pct": -22.5379975661524
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 26.633996527770197,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 5588.0,
   "end_distance_m": 5688.0,
   "start_elevation_m": 498.9575825659878,
   "end_elevation_m": 525.591579093758,
   "min_gradient_pct": -21.687082515733096,
   "suppressed_max_gradient_pct": 30.80210204918137,
   "suppressed_location_m": [
    5576.0,
    5676.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.414,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 120.0,
  "shape_class": "sustained"
 },
 "length_m": 6312.933999641524,
 "start_elevation_m": 247.4993121188396,
 "end_elevation_m": 471.2059260232028,
 "endpoint_gain_m": 223.70661390436317,
 "overall_gradient_pct": 3.5436235182732188,
 "accumulated_ascent_m": 421.33228883085366,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 43.97415484027874,
   "start_distance_m": 1991.0,
   "end_distance_m": 1996.0,
   "midpoint_distance_m": 1993.5,
   "start_elevation_m": 304.93650981886367,
   "end_elevation_m": 307.1352175608776,
   "start_xy": [
    350661.99973122875,
    4910786.70688284
   ],
   "end_xy": [
    350666.7351521429,
    4910785.1019564355
   ]
  },
  "max_10m": {
   "gradient_pct": 40.019469752730856,
   "start_distance_m": 5655.0,
   "end_distance_m": 5665.0,
   "midpoint_distance_m": 5660.0,
   "start_elevation_m": 518.6837617387685,
   "end_elevation_m": 522.6857087140415,
   "start_xy": [
    350776.22760818957,
    4907918.602890421
   ],
   "end_xy": [
    350772.66252516437,
    4907909.259968874
   ]
  },
  "max_20m": {
   "gradient_pct": 38.58534187059888,
   "start_distance_m": 5655.0,
   "end_distance_m": 5675.0,
   "midpoint_distance_m": 5665.0,
   "start_elevation_m": 518.6837617387685,
   "end_elevation_m": 526.4008301128882,
   "start_xy": [
    350776.22760818957,
    4907918.602890421
   ],
   "end_xy": [
    350769.09744213923,
    4907899.917047328
   ]
  },
  "max_25m": {
   "gradient_pct": 37.26839827253934,
   "start_distance_m": 5651.0,
   "end_distance_m": 5676.0,
   "midpoint_distance_m": 5663.5,
   "start_elevation_m": 517.4450707064998,
   "end_elevation_m": 526.7621702746346,
   "start_xy": [
    350777.65364139964,
    4907922.340059039
   ],
   "end_xy": [
    350768.74093383667,
    4907898.982755173
   ]
  },
  "max_50m": {
   "gradient_pct": 36.10916126257757,
   "start_distance_m": 5625.0,
   "end_distance_m": 5675.0,
   "midpoint_distance_m": 5650.0,
   "start_elevation_m": 508.34624948159944,
   "end_elevation_m": 526.4008301128882,
   "start_xy": [
    350783.29489635106,
    4907947.470331686
   ],
   "end_xy": [
    350769.09744213923,
    4907899.917047328
   ]
  },
  "max_100m": {
   "gradient_pct": 26.633996527770197,
   "start_distance_m": 5588.0,
   "end_distance_m": 5688.0,
   "midpoint_distance_m": 5638.0,
   "start_elevation_m": 498.9575825659878,
   "end_elevation_m": 525.591579093758,
   "start_xy": [
    350786.61418086843,
    4907984.321143757
   ],
   "end_xy": [
    350757.0406650083,
    4907898.098915696
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -41.195787776686075,
   "start_distance_m": 5986.0,
   "end_distance_m": 5991.0,
   "midpoint_distance_m": 5988.5,
   "start_elevation_m": 503.4733477354698,
   "end_elevation_m": 501.4135583466355,
   "start_xy": [
    350591.00076019356,
    4908083.694850482
   ],
   "end_xy": [
    350594.23068717786,
    4908087.511599317
   ]
  },
  "min_10m": {
   "gradient_pct": -37.797850853521595,
   "start_distance_m": 5985.0,
   "end_distance_m": 5995.0,
   "midpoint_distance_m": 5990.0,
   "start_elevation_m": 503.89038594162946,
   "end_elevation_m": 500.1106008562773,
   "start_xy": [
    350590.3547747967,
    4908082.931500714
   ],
   "end_xy": [
    350596.81462876534,
    4908090.564998386
   ]
  },
  "min_20m": {
   "gradient_pct": -29.39842479621717,
   "start_distance_m": 5977.0,
   "end_distance_m": 5997.0,
   "midpoint_distance_m": 5987.0,
   "start_elevation_m": 505.63798128054066,
   "end_elevation_m": 499.7582963212972,
   "start_xy": [
    350585.1868916218,
    4908076.824702577
   ],
   "end_xy": [
    350598.1065995591,
    4908092.091697921
   ]
  },
  "min_25m": {
   "gradient_pct": -26.845837679340548,
   "start_distance_m": 6021.0,
   "end_distance_m": 6046.0,
   "midpoint_distance_m": 6033.5,
   "start_elevation_m": 496.333020461899,
   "end_elevation_m": 489.6215610420639,
   "start_xy": [
    350613.6102490838,
    4908110.412092333
   ],
   "end_xy": [
    350627.10767651675,
    4908130.722485653
   ]
  },
  "min_50m": {
   "gradient_pct": -22.5379975661524,
   "start_distance_m": 6030.0,
   "end_distance_m": 6080.0,
   "midpoint_distance_m": 6055.0,
   "start_elevation_m": 494.54896018034157,
   "end_elevation_m": 483.27996139726537,
   "start_xy": [
    350619.42411765555,
    4908117.282240237
   ],
   "end_xy": [
    350632.66169498087,
    4908164.265784222
   ]
  },
  "min_100m": {
   "gradient_pct": -21.687082515733096,
   "start_distance_m": 5981.0,
   "end_distance_m": 6081.0,
   "midpoint_distance_m": 6031.0,
   "start_elevation_m": 504.7935659304286,
   "end_elevation_m": 483.1064834146955,
   "start_xy": [
    350587.7708332092,
    4908079.878101646
   ],
   "end_xy": [
    350632.8250484651,
    4908165.252351827
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 54.51289482104187,
   "start_distance_m": 1993.0,
   "end_distance_m": 1995.0,
   "midpoint_distance_m": 1994.0,
   "start_elevation_m": 305.72192213302196,
   "end_elevation_m": 306.8121800294428,
   "start_xy": [
    350663.8938995944,
    4910786.064912278
   ],
   "end_xy": [
    350665.78806796006,
    4910785.422941716
   ]
  },
  "max_3m": {
   "gradient_pct": 51.530167981290255,
   "start_distance_m": 1992.0,
   "end_distance_m": 1995.0,
   "midpoint_distance_m": 1993.5,
   "start_elevation_m": 305.2662749900041,
   "end_elevation_m": 306.8121800294428,
   "start_xy": [
    350662.94681541156,
    4910786.385897559
   ],
   "end_xy": [
    350665.78806796006,
    4910785.422941716
   ]
  }
 },
 "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": {
  "structure_suppression": {
   "masked_fraction": 0.002,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    100.0
   ],
   "windows_unresolved": []
  },
  "excluded_ranges_m": [
   [
    4636.0,
    4644.0
   ],
   [
    5582.0,
    5587.0
   ]
  ],
  "review": [
   "max10_over_40"
  ],
  "extent": [
   "descends_at_start"
  ],
  "suggested_summit_cut_m": 5717.0,
  "trailing_descent_m": 56.1
 },
 "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/me/USGS_1M_19_x35y491_ME_WesternMtns_B24.tif",
   "data/cache/usa/me/USGS_1M_19_x35y492_ME_WesternMtns_B24.tif"
  ],
  "calculated_at": "2026-08-24T20:34:21+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/maine-2026-08-22.osm.pbf",
  "osm_snapshot": "2026-08-21T20:21:11Z",
  "run_id": "redo-me-1-260824",
  "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, ME_WesternMtns_B24 (collected 2024)",
  "elevation_tile_ids": [
   "x35y491",
   "x35y492"
  ],
  "climb_origin": "discovered",
  "notes": "Coarse pass: max 22.2% over 200 m (Terrain 50), gain 224.0 m over 6313 m way. KEPT at seed extent: no ascending continuation (min_avg=2.0%). ADOPTED (NE wave 1, 2026-08-25): big-gain,clean-steep. Wales dials per PRODUCTION 'US ADOPTION DIALS'.",
  "canopy_check": "unavailable \u2014 no surface model (DSM or point cloud) registered for this coverage",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing.html"
 },
 "area": {
  "place": "South Oxford",
  "county": "Maine"
 }
}