{
 "ocl_version": "0.1.0",
 "name": "Wiggle Brook Road",
 "slug": "wiggle-brook-road",
 "confidence": "U",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 57.22572089282494,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 1368.0,
   "end_distance_m": 1370.0,
   "start_elevation_m": 696.5422136631413,
   "end_elevation_m": 697.6867280809978,
   "min_gradient_pct": -35.09187040244228,
   "suppressed_max_gradient_pct": 68.65592628566901,
   "suppressed_location_m": [
    2135.0,
    2137.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 52.85468070662773,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 1368.0,
   "end_distance_m": 1371.0,
   "start_elevation_m": 696.5422136631413,
   "end_elevation_m": 698.1278540843401,
   "min_gradient_pct": -37.31741115729316,
   "suppressed_max_gradient_pct": 61.33736970313824,
   "suppressed_location_m": [
    2134.0,
    2137.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 42.87829963837112,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 1368.0,
   "end_distance_m": 1373.0,
   "start_elevation_m": 696.5422136631413,
   "end_elevation_m": 698.6861286450599,
   "min_gradient_pct": -26.164234159227817,
   "suppressed_max_gradient_pct": 46.78781324472993,
   "suppressed_location_m": [
    2132.0,
    2137.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 31.25230471610962,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1368.0,
   "end_distance_m": 1378.0,
   "start_elevation_m": 696.5422136631413,
   "end_elevation_m": 699.6674441347523,
   "min_gradient_pct": -16.17401741351955
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.86961603415341,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1341.0,
   "end_distance_m": 1361.0,
   "start_elevation_m": 693.0847388711834,
   "end_elevation_m": 697.4586620780141,
   "min_gradient_pct": -12.527357354380229
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 22.390163886829214,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1336.0,
   "end_distance_m": 1361.0,
   "start_elevation_m": 691.8611211063068,
   "end_elevation_m": 697.4586620780141,
   "min_gradient_pct": -11.573237336152943
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 17.633625761477106,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 1328.0,
   "end_distance_m": 1378.0,
   "start_elevation_m": 690.8506312540137,
   "end_elevation_m": 699.6674441347523,
   "min_gradient_pct": -8.318978612381215,
   "suppressed_max_gradient_pct": 18.326545707866217,
   "suppressed_location_m": [
    2087.0,
    2137.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 12.23559890860713,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 1279.0,
   "end_distance_m": 1379.0,
   "start_elevation_m": 687.4739987825654,
   "end_elevation_m": 699.7095976911726,
   "min_gradient_pct": -6.9502172790588475,
   "suppressed_max_gradient_pct": 15.004576505422051,
   "suppressed_location_m": [
    2077.0,
    2177.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.387,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 57.0,
  "shape_class": "sustained"
 },
 "length_m": 2730.6626158315526,
 "start_elevation_m": 643.680575739497,
 "end_elevation_m": 753.1668768067083,
 "endpoint_gain_m": 109.48630106721123,
 "overall_gradient_pct": 4.009514043677271,
 "accumulated_ascent_m": 151.95342733911002,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 42.87829963837112,
   "start_distance_m": 1368.0,
   "end_distance_m": 1373.0,
   "midpoint_distance_m": 1370.5,
   "start_elevation_m": 696.5422136631413,
   "end_elevation_m": 698.6861286450599,
   "start_xy": [
    356171.5876435715,
    5004700.192716755
   ],
   "end_xy": [
    356166.74811642006,
    5004698.9361432595
   ]
  },
  "max_10m": {
   "gradient_pct": 31.25230471610962,
   "start_distance_m": 1368.0,
   "end_distance_m": 1378.0,
   "midpoint_distance_m": 1373.0,
   "start_elevation_m": 696.5422136631413,
   "end_elevation_m": 699.6674441347523,
   "start_xy": [
    356171.5876435715,
    5004700.192716755
   ],
   "end_xy": [
    356161.90858926857,
    5004697.679569763
   ]
  },
  "max_20m": {
   "gradient_pct": 21.86961603415341,
   "start_distance_m": 1341.0,
   "end_distance_m": 1361.0,
   "midpoint_distance_m": 1351.0,
   "start_elevation_m": 693.0847388711834,
   "end_elevation_m": 697.4586620780141,
   "start_xy": [
    356197.7210901893,
    5004706.9782136325
   ],
   "end_xy": [
    356178.3629815835,
    5004701.951919649
   ]
  },
  "max_25m": {
   "gradient_pct": 22.390163886829214,
   "start_distance_m": 1336.0,
   "end_distance_m": 1361.0,
   "midpoint_distance_m": 1348.5,
   "start_elevation_m": 691.8611211063068,
   "end_elevation_m": 697.4586620780141,
   "start_xy": [
    356202.5606173408,
    5004708.234787128
   ],
   "end_xy": [
    356178.3629815835,
    5004701.951919649
   ]
  },
  "max_50m": {
   "gradient_pct": 17.633625761477106,
   "start_distance_m": 1328.0,
   "end_distance_m": 1378.0,
   "midpoint_distance_m": 1353.0,
   "start_elevation_m": 690.8506312540137,
   "end_elevation_m": 699.6674441347523,
   "start_xy": [
    356210.3038607831,
    5004710.245304721
   ],
   "end_xy": [
    356161.90858926857,
    5004697.679569763
   ]
  },
  "max_100m": {
   "gradient_pct": 12.23559890860713,
   "start_distance_m": 1279.0,
   "end_distance_m": 1379.0,
   "midpoint_distance_m": 1329.0,
   "start_elevation_m": 687.4739987825654,
   "end_elevation_m": 699.7095976911726,
   "start_xy": [
    356258.7127786976,
    5004702.909817316
   ],
   "end_xy": [
    356160.94068383833,
    5004697.428255064
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -26.164234159227817,
   "start_distance_m": 1362.0,
   "end_distance_m": 1367.0,
   "midpoint_distance_m": 1364.5,
   "start_elevation_m": 697.672756254914,
   "end_elevation_m": 696.3645445469526,
   "start_xy": [
    356177.3950761532,
    5004701.70060495
   ],
   "end_xy": [
    356172.5555490018,
    5004700.444031454
   ]
  },
  "min_10m": {
   "gradient_pct": -16.17401741351955,
   "start_distance_m": 2412.0,
   "end_distance_m": 2422.0,
   "midpoint_distance_m": 2417.0,
   "start_elevation_m": 764.1299911727091,
   "end_elevation_m": 762.5125894313571,
   "start_xy": [
    355218.7883111834,
    5004938.289525567
   ],
   "end_xy": [
    355211.06268747716,
    5004944.638914383
   ]
  },
  "min_20m": {
   "gradient_pct": -12.527357354380229,
   "start_distance_m": 2703.0,
   "end_distance_m": 2723.0,
   "midpoint_distance_m": 2713.0,
   "start_elevation_m": 755.9714211484226,
   "end_elevation_m": 753.4659496775465,
   "start_xy": [
    355032.88705427607,
    5005155.391097168
   ],
   "end_xy": [
    355018.3865786897,
    5005169.165573847
   ]
  },
  "min_25m": {
   "gradient_pct": -11.573237336152943,
   "start_distance_m": 2698.0,
   "end_distance_m": 2723.0,
   "midpoint_distance_m": 2710.5,
   "start_elevation_m": 756.3592590115848,
   "end_elevation_m": 753.4659496775465,
   "start_xy": [
    355036.51217317267,
    5005151.947477998
   ],
   "end_xy": [
    355018.3865786897,
    5005169.165573847
   ]
  },
  "min_50m": {
   "gradient_pct": -8.318978612381215,
   "start_distance_m": 2533.0,
   "end_distance_m": 2583.0,
   "midpoint_distance_m": 2558.0,
   "start_elevation_m": 765.3407839831742,
   "end_elevation_m": 761.1812946769836,
   "start_xy": [
    355135.9163582456,
    5005023.490434555
   ],
   "end_xy": [
    355114.0089778208,
    5005068.435586495
   ]
  },
  "min_100m": {
   "gradient_pct": -6.9502172790588475,
   "start_distance_m": 2533.0,
   "end_distance_m": 2633.0,
   "midpoint_distance_m": 2583.0,
   "start_elevation_m": 765.3407839831742,
   "end_elevation_m": 758.3905667041154,
   "start_xy": [
    355135.9163582456,
    5005023.490434555
   ],
   "end_xy": [
    355083.63871882844,
    5005107.180428793
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 57.22572089282494,
   "start_distance_m": 1368.0,
   "end_distance_m": 1370.0,
   "midpoint_distance_m": 1369.0,
   "start_elevation_m": 696.5422136631413,
   "end_elevation_m": 697.6867280809978,
   "start_xy": [
    356171.5876435715,
    5004700.192716755
   ],
   "end_xy": [
    356169.6518327109,
    5004699.690087357
   ]
  },
  "max_3m": {
   "gradient_pct": 52.85468070662773,
   "start_distance_m": 1368.0,
   "end_distance_m": 1371.0,
   "midpoint_distance_m": 1369.5,
   "start_elevation_m": 696.5422136631413,
   "end_elevation_m": 698.1278540843401,
   "start_xy": [
    356171.5876435715,
    5004700.192716755
   ],
   "end_xy": [
    356168.6839272806,
    5004699.438772657
   ]
  }
 },
 "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": 0.003,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    50.0,
    100.0
   ],
   "windows_unresolved": []
  },
  "excluded_ranges_m": [
   [
    2133.0,
    2139.0
   ]
  ],
  "review": [
   "short_window_divergence"
  ],
  "extent": [
   "descends_at_end"
  ],
  "suggested_summit_cut_m": 2528.0,
  "trailing_descent_m": 12.4
 },
 "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_x35y501_NH_Umbagog_LiDAR_2016_D16.tif"
  ],
  "calculated_at": "2026-08-24T20:48:58+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-2-260824",
  "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, NH_Umbagog_LiDAR_2016_D16 (collected 2016)",
  "elevation_tile_ids": [
   "x35y501"
  ],
  "climb_origin": "discovered",
  "notes": "Coarse pass: max 11.6% over 200 m (Terrain 50), gain 109.3 m over 2731 m way. KEPT at seed extent: no ascending continuation (min_avg=2.0%). ADOPTED (NE wave 1, 2026-08-25): 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": "North Franklin",
  "county": "Maine"
 }
}