{
 "ocl_version": "0.1.0",
 "name": "Mountain Road",
 "slug": "mountain-road-2",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 36.66747763858922,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 857.0,
   "end_distance_m": 859.0,
   "start_elevation_m": 221.20285987108707,
   "end_elevation_m": 221.93620942385886,
   "min_gradient_pct": -13.367662724559182
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 35.9467466805531,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 780.0,
   "end_distance_m": 783.0,
   "start_elevation_m": 209.33396624749722,
   "end_elevation_m": 210.4123686479138,
   "min_gradient_pct": -11.22561168490582
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 32.94923834572103,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 779.0,
   "end_distance_m": 784.0,
   "start_elevation_m": 209.0147019744711,
   "end_elevation_m": 210.66216389175716,
   "min_gradient_pct": -4.569710243828808
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 27.452731115518247,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 779.0,
   "end_distance_m": 789.0,
   "start_elevation_m": 209.0147019744711,
   "end_elevation_m": 211.75997508602293,
   "min_gradient_pct": 0.23435017879904763
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.886611513084944,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 830.0,
   "end_distance_m": 850.0,
   "start_elevation_m": 216.39477299103598,
   "end_elevation_m": 220.77209529365297,
   "min_gradient_pct": 0.5273931033882207
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.896844932446356,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 825.0,
   "end_distance_m": 850.0,
   "start_elevation_m": 215.54788406054138,
   "end_elevation_m": 220.77209529365297,
   "min_gradient_pct": 0.5883763692677348
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.287718919674262,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 856.0,
   "end_distance_m": 906.0,
   "start_elevation_m": 221.00564016380167,
   "end_elevation_m": 231.1494996236388,
   "min_gradient_pct": 1.0215842851033017
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 19.34880743874632,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 856.0,
   "end_distance_m": 956.0,
   "start_elevation_m": 221.00564016380167,
   "end_elevation_m": 240.354447602548,
   "min_gradient_pct": 1.3653055930206222
  }
 ],
 "shape": {
  "ascent_concentration": 0.397,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 258.0,
  "shape_class": "sustained"
 },
 "length_m": 1243.4861554874087,
 "start_elevation_m": 151.50086055191474,
 "end_elevation_m": 282.5585775953184,
 "endpoint_gain_m": 131.05771704340367,
 "overall_gradient_pct": 10.539539701753498,
 "accumulated_ascent_m": 132.03389932543539,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 32.94923834572103,
   "start_distance_m": 779.0,
   "end_distance_m": 784.0,
   "midpoint_distance_m": 781.5,
   "start_elevation_m": 209.0147019744711,
   "end_elevation_m": 210.66216389175716,
   "start_xy": [
    345622.4005226213,
    4901967.481450033
   ],
   "end_xy": [
    345618.51926143456,
    4901970.633561177
   ]
  },
  "max_10m": {
   "gradient_pct": 27.452731115518247,
   "start_distance_m": 779.0,
   "end_distance_m": 789.0,
   "midpoint_distance_m": 784.0,
   "start_elevation_m": 209.0147019744711,
   "end_elevation_m": 211.75997508602293,
   "start_xy": [
    345622.4005226213,
    4901967.481450033
   ],
   "end_xy": [
    345614.6377010685,
    4901973.785304931
   ]
  },
  "max_20m": {
   "gradient_pct": 21.886611513084944,
   "start_distance_m": 830.0,
   "end_distance_m": 850.0,
   "midpoint_distance_m": 840.0,
   "start_elevation_m": 216.39477299103598,
   "end_elevation_m": 220.77209529365297,
   "start_xy": [
    345582.81034464564,
    4901999.631369206
   ],
   "end_xy": [
    345567.2847519234,
    4902012.239139547
   ]
  },
  "max_25m": {
   "gradient_pct": 20.896844932446356,
   "start_distance_m": 825.0,
   "end_distance_m": 850.0,
   "midpoint_distance_m": 837.5,
   "start_elevation_m": 215.54788406054138,
   "end_elevation_m": 220.77209529365297,
   "start_xy": [
    345586.6916062082,
    4901996.479257846
   ],
   "end_xy": [
    345567.2847519234,
    4902012.239139547
   ]
  },
  "max_50m": {
   "gradient_pct": 20.287718919674262,
   "start_distance_m": 856.0,
   "end_distance_m": 906.0,
   "midpoint_distance_m": 881.0,
   "start_elevation_m": 221.00564016380167,
   "end_elevation_m": 231.1494996236388,
   "start_xy": [
    345562.6267838859,
    4902016.021113598
   ],
   "end_xy": [
    345524.01522748114,
    4902047.782120671
   ]
  },
  "max_100m": {
   "gradient_pct": 19.34880743874632,
   "start_distance_m": 856.0,
   "end_distance_m": 956.0,
   "midpoint_distance_m": 906.0,
   "start_elevation_m": 221.00564016380167,
   "end_elevation_m": 240.354447602548,
   "start_xy": [
    345562.6267838859,
    4902016.021113598
   ],
   "end_xy": [
    345482.98277645756,
    4902074.684685528
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -4.569710243828808,
   "start_distance_m": 773.0,
   "end_distance_m": 778.0,
   "midpoint_distance_m": 775.5,
   "start_elevation_m": 209.1153255698099,
   "end_elevation_m": 208.88684005761846,
   "start_xy": [
    345627.05838003196,
    4901963.699340515
   ],
   "end_xy": [
    345623.17682051595,
    4901966.85108386
   ]
  },
  "min_10m": {
   "gradient_pct": 0.23435017879904763,
   "start_distance_m": 0.0,
   "end_distance_m": 10.0,
   "midpoint_distance_m": 5.0,
   "start_elevation_m": 151.50086055191474,
   "end_elevation_m": 151.52429556979465,
   "start_xy": [
    346184.718,
    4901514.435
   ],
   "end_xy": [
    346180.0830132609,
    4901523.295974678
   ]
  },
  "min_20m": {
   "gradient_pct": 0.5273931033882207,
   "start_distance_m": 0.0,
   "end_distance_m": 20.0,
   "midpoint_distance_m": 10.0,
   "start_elevation_m": 151.50086055191474,
   "end_elevation_m": 151.60633917259239,
   "start_xy": [
    346184.718,
    4901514.435
   ],
   "end_xy": [
    346175.44881127996,
    4901532.157360357
   ]
  },
  "min_25m": {
   "gradient_pct": 0.5883763692677348,
   "start_distance_m": 0.0,
   "end_distance_m": 25.0,
   "midpoint_distance_m": 12.5,
   "start_elevation_m": 151.50086055191474,
   "end_elevation_m": 151.64795464423167,
   "start_xy": [
    346184.718,
    4901514.435
   ],
   "end_xy": [
    346173.13113085786,
    4901536.587750129
   ]
  },
  "min_50m": {
   "gradient_pct": 1.0215842851033017,
   "start_distance_m": 0.0,
   "end_distance_m": 50.0,
   "midpoint_distance_m": 25.0,
   "start_elevation_m": 151.50086055191474,
   "end_elevation_m": 152.0116526944664,
   "start_xy": [
    346184.718,
    4901514.435
   ],
   "end_xy": [
    346161.54426167393,
    4901558.740499775
   ]
  },
  "min_100m": {
   "gradient_pct": 1.3653055930206222,
   "start_distance_m": 0.0,
   "end_distance_m": 100.0,
   "midpoint_distance_m": 50.0,
   "start_elevation_m": 151.50086055191474,
   "end_elevation_m": 152.86616614493536,
   "start_xy": [
    346184.718,
    4901514.435
   ],
   "end_xy": [
    346138.37089772616,
    4901603.04619529
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 36.66747763858922,
   "start_distance_m": 857.0,
   "end_distance_m": 859.0,
   "midpoint_distance_m": 858.0,
   "start_elevation_m": 221.20285987108707,
   "end_elevation_m": 221.93620942385886,
   "start_xy": [
    345561.85048601433,
    4902016.6514798
   ],
   "end_xy": [
    345560.29780005704,
    4902017.912100469
   ]
  },
  "max_3m": {
   "gradient_pct": 35.9467466805531,
   "start_distance_m": 780.0,
   "end_distance_m": 783.0,
   "midpoint_distance_m": 781.5,
   "start_elevation_m": 209.33396624749722,
   "end_elevation_m": 210.4123686479138,
   "start_xy": [
    345621.62454326317,
    4901968.112208165
   ],
   "end_xy": [
    345619.29560873186,
    4901970.003255798
   ]
  }
 },
 "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": 0.309,
   "obstruction_max_height_m": 26.18,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "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:26919",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/usa/me/USGS_1M_19_x34y491_ME_WesternMtns_B24.tif"
  ],
  "calculated_at": "2026-09-03T19:30:22+00:00",
  "road_source": "/mnt/HC_Volume_106727764/site-corpus-fresh/us/mountain-road-2/mountain-road-2.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": [
   "x34y491"
  ],
  "climb_origin": "discovered",
  "canopy_source": {
   "kind": "ept_corridor_max_return",
   "ept_source": "https://usgs-lidar-public.s3-us-west-2.amazonaws.com/NH_Umbagog_2016",
   "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.html"
 },
 "area": {
  "place": "Stoneham",
  "county": "Maine"
 }
}