{
 "ocl_version": "0.1.0",
 "name": "Drury Lane",
 "slug": "drury-lane",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 39.98878241244768,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 2094.0,
   "end_distance_m": 2096.0,
   "start_elevation_m": 308.8708020257969,
   "end_elevation_m": 309.67057767404583,
   "min_gradient_pct": -38.12081081253211,
   "suppressed_max_gradient_pct": 56.48802563503352,
   "suppressed_location_m": [
    1629.0,
    1631.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 37.79516553512773,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 2094.0,
   "end_distance_m": 2097.0,
   "start_elevation_m": 308.8708020257969,
   "end_elevation_m": 310.0046569918507,
   "min_gradient_pct": -27.258196824874403,
   "suppressed_max_gradient_pct": 48.08721820758706,
   "suppressed_location_m": [
    1629.0,
    1632.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 31.836869438710664,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 2094.0,
   "end_distance_m": 2099.0,
   "start_elevation_m": 308.8708020257969,
   "end_elevation_m": 310.4626454977324,
   "min_gradient_pct": -23.58385583837503,
   "suppressed_max_gradient_pct": 33.41667897577054,
   "suppressed_location_m": [
    2104.0,
    2109.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 27.454924561392033,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 29.0,
   "end_distance_m": 39.0,
   "start_elevation_m": 181.55928680869127,
   "end_elevation_m": 184.30477926483047,
   "min_gradient_pct": -18.89600887321535
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 22.892364313305507,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 28.0,
   "end_distance_m": 48.0,
   "start_elevation_m": 181.45199598428292,
   "end_elevation_m": 186.03046884694402,
   "min_gradient_pct": -15.46854154292646,
   "suppressed_max_gradient_pct": 24.56179004788197,
   "suppressed_location_m": [
    2089.0,
    2109.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.589827615008062,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 2078.0,
   "end_distance_m": 2103.0,
   "start_elevation_m": 305.863575383894,
   "end_elevation_m": 311.011032287646,
   "min_gradient_pct": -14.686372639719139,
   "suppressed_max_gradient_pct": 23.51348400021493,
   "suppressed_location_m": [
    2084.0,
    2109.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 18.66340838640906,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 2050.0,
   "end_distance_m": 2100.0,
   "start_elevation_m": 301.2889851405458,
   "end_elevation_m": 310.6206893337503,
   "min_gradient_pct": -8.54503432563206,
   "suppressed_max_gradient_pct": 20.158017181939613,
   "suppressed_location_m": [
    2059.0,
    2109.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.032226522764972,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 2003.0,
   "end_distance_m": 2103.0,
   "start_elevation_m": 293.97880576488103,
   "end_elevation_m": 311.011032287646,
   "min_gradient_pct": -4.349874939861991,
   "suppressed_max_gradient_pct": 17.608385017222076,
   "suppressed_location_m": [
    2009.0,
    2109.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.312,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 144.0,
  "shape_class": "sustained"
 },
 "length_m": 2126.8784224245633,
 "start_elevation_m": 178.5049790150937,
 "end_elevation_m": 313.7461822899393,
 "endpoint_gain_m": 135.24120327484562,
 "overall_gradient_pct": 6.358671085706705,
 "accumulated_ascent_m": 149.29059825402078,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 31.836869438710664,
   "start_distance_m": 2094.0,
   "end_distance_m": 2099.0,
   "midpoint_distance_m": 2096.5,
   "start_elevation_m": 308.8708020257969,
   "end_elevation_m": 310.4626454977324,
   "start_xy": [
    400741.9507236626,
    4952450.570020085
   ],
   "end_xy": [
    400740.05779349117,
    4952455.197849658
   ]
  },
  "max_10m": {
   "gradient_pct": 27.454924561392033,
   "start_distance_m": 29.0,
   "end_distance_m": 39.0,
   "midpoint_distance_m": 34.0,
   "start_elevation_m": 181.55928680869127,
   "end_elevation_m": 184.30477926483047,
   "start_xy": [
    401810.3047699514,
    4951165.72016247
   ],
   "end_xy": [
    401807.6516899403,
    4951174.79607592
   ]
  },
  "max_20m": {
   "gradient_pct": 22.892364313305507,
   "start_distance_m": 28.0,
   "end_distance_m": 48.0,
   "midpoint_distance_m": 38.0,
   "start_elevation_m": 181.45199598428292,
   "end_elevation_m": 186.03046884694402,
   "start_xy": [
    401811.1220701916,
    4951165.143950428
   ],
   "end_xy": [
    401806.6817356605,
    4951183.743655125
   ]
  },
  "max_25m": {
   "gradient_pct": 20.589827615008062,
   "start_distance_m": 2078.0,
   "end_distance_m": 2103.0,
   "midpoint_distance_m": 2090.5,
   "start_elevation_m": 305.863575383894,
   "end_elevation_m": 311.011032287646,
   "start_xy": [
    400744.53013379796,
    4952434.860078781
   ],
   "end_xy": [
    400738.54352806107,
    4952458.900145544
   ]
  },
  "max_50m": {
   "gradient_pct": 18.66340838640906,
   "start_distance_m": 2050.0,
   "end_distance_m": 2100.0,
   "midpoint_distance_m": 2075.0,
   "start_elevation_m": 301.2889851405458,
   "end_elevation_m": 310.6206893337503,
   "start_xy": [
    400747.76716344286,
    4952407.0478250105
   ],
   "end_xy": [
    400739.6793877496,
    4952456.123489269
   ]
  },
  "max_100m": {
   "gradient_pct": 17.032226522764972,
   "start_distance_m": 2003.0,
   "end_distance_m": 2103.0,
   "midpoint_distance_m": 2053.0,
   "start_elevation_m": 293.97880576488103,
   "end_elevation_m": 311.011032287646,
   "start_xy": [
    400753.20074860886,
    4952360.362970708
   ],
   "end_xy": [
    400738.54352806107,
    4952458.900145544
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -23.58385583837503,
   "start_distance_m": 203.0,
   "end_distance_m": 208.0,
   "midpoint_distance_m": 205.5,
   "start_elevation_m": 194.99567897173716,
   "end_elevation_m": 193.8164861798184,
   "start_xy": [
    401718.1696477831,
    4951307.518188289
   ],
   "end_xy": [
    401716.3377552449,
    4951312.170516682
   ]
  },
  "min_10m": {
   "gradient_pct": -18.89600887321535,
   "start_distance_m": 201.0,
   "end_distance_m": 211.0,
   "midpoint_distance_m": 206.0,
   "start_elevation_m": 195.29652722367484,
   "end_elevation_m": 193.4069263363533,
   "start_xy": [
    401718.9028940745,
    4951305.657449483
   ],
   "end_xy": [
    401715.2378331491,
    4951314.961604293
   ]
  },
  "min_20m": {
   "gradient_pct": -15.46854154292646,
   "start_distance_m": 1785.0,
   "end_distance_m": 1805.0,
   "midpoint_distance_m": 1795.0,
   "start_elevation_m": 275.684474057626,
   "end_elevation_m": 272.5907657490407,
   "start_xy": [
    400903.41513853637,
    4952328.487965586
   ],
   "end_xy": [
    400892.9241513402,
    4952345.515563377
   ]
  },
  "min_25m": {
   "gradient_pct": -14.686372639719139,
   "start_distance_m": 1783.0,
   "end_distance_m": 1808.0,
   "midpoint_distance_m": 1795.5,
   "start_elevation_m": 275.8066310260375,
   "end_elevation_m": 272.1350378661077,
   "start_xy": [
    400904.4647830033,
    4952326.785542217
   ],
   "end_xy": [
    400891.350633933,
    4952348.069783853
   ]
  },
  "min_50m": {
   "gradient_pct": -8.54503432563206,
   "start_distance_m": 1759.0,
   "end_distance_m": 1809.0,
   "midpoint_distance_m": 1784.0,
   "start_elevation_m": 276.3660252756425,
   "end_elevation_m": 272.0935081128265,
   "start_xy": [
    400919.24079148466,
    4952309.1719369665
   ],
   "end_xy": [
    400890.82603537774,
    4952348.921133317
   ]
  },
  "min_100m": {
   "gradient_pct": -4.349874939861991,
   "start_distance_m": 1712.0,
   "end_distance_m": 1812.0,
   "midpoint_distance_m": 1762.0,
   "start_elevation_m": 276.52925328471395,
   "end_elevation_m": 272.17937834485195,
   "start_xy": [
    400938.4329881373,
    4952282.059707847
   ],
   "end_xy": [
    400889.25234586606,
    4952351.475247458
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 39.98878241244768,
   "start_distance_m": 2094.0,
   "end_distance_m": 2096.0,
   "midpoint_distance_m": 2095.0,
   "start_elevation_m": 308.8708020257969,
   "end_elevation_m": 309.67057767404583,
   "start_xy": [
    400741.9507236626,
    4952450.570020085
   ],
   "end_xy": [
    400741.1938657789,
    4952452.4212804455
   ]
  },
  "max_3m": {
   "gradient_pct": 37.79516553512773,
   "start_distance_m": 2094.0,
   "end_distance_m": 2097.0,
   "midpoint_distance_m": 2095.5,
   "start_elevation_m": 308.8708020257969,
   "end_elevation_m": 310.0046569918507,
   "start_xy": [
    400741.9507236626,
    4952450.570020085
   ],
   "end_xy": [
    400740.81486442196,
    4952453.346676542
   ]
  }
 },
 "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": 0.007,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    20.0,
    25.0,
    50.0,
    100.0
   ],
   "windows_unresolved": []
  },
  "excluded_ranges_m": [
   [
    1625.0,
    1632.0
   ],
   [
    2105.0,
    2110.0
   ]
  ],
  "review": [],
  "extent": [
   "may_start_earlier",
   "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:26919",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/usa/me/USGS_1M_19_x40y496_ME_WesternMtns_B24.tif"
  ],
  "calculated_at": "2026-09-03T15:56:01+00:00",
  "road_source": "/mnt/HC_Volume_106727764/site-corpus-fresh/us/drury-lane/drury-lane.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, ME_WesternMtns_B24 (collected 2024)",
  "elevation_tile_ids": [
   "x40y496"
  ],
  "climb_origin": "discovered",
  "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": "Temple",
  "county": "Maine"
 }
}