{
 "ocl_version": "0.1.0",
 "name": "C Wells",
 "slug": "c-wells",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 51.139010123573314,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 645.0,
   "end_distance_m": 647.0,
   "start_elevation_m": 132.69703078897763,
   "end_elevation_m": 133.7198109914491,
   "min_gradient_pct": -18.3626929781191
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 37.74426866162438,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 644.0,
   "end_distance_m": 647.0,
   "start_elevation_m": 132.58748293160036,
   "end_elevation_m": 133.7198109914491,
   "min_gradient_pct": -13.185166228765866
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 27.519844047044444,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 520.0,
   "end_distance_m": 525.0,
   "start_elevation_m": 117.49397093628468,
   "end_elevation_m": 118.8699631386369,
   "min_gradient_pct": -8.029038553806345
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 23.63159709393244,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 541.0,
   "end_distance_m": 551.0,
   "start_elevation_m": 121.51738425777131,
   "end_elevation_m": 123.88054396716456,
   "min_gradient_pct": -7.219532926913814
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.873510704173782,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 534.0,
   "end_distance_m": 554.0,
   "start_elevation_m": 120.05969183723394,
   "end_elevation_m": 124.4343939780687,
   "min_gradient_pct": -2.0605641035777467
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.00024985965922,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 534.0,
   "end_distance_m": 559.0,
   "start_elevation_m": 120.05969183723394,
   "end_elevation_m": 125.30975430214875,
   "min_gradient_pct": -1.6440124359871788
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.85768101084136,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 518.0,
   "end_distance_m": 568.0,
   "start_elevation_m": 117.10833078620823,
   "end_elevation_m": 127.03717129162891,
   "min_gradient_pct": -0.21998148224545844
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.44074993847798,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 480.0,
   "end_distance_m": 580.0,
   "start_elevation_m": 111.86313627798427,
   "end_elevation_m": 129.30388621646225,
   "min_gradient_pct": 1.4336653325408832
  }
 ],
 "shape": {
  "ascent_concentration": 0.451,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 108.0,
  "shape_class": "stepped"
 },
 "length_m": 876.0534406361033,
 "start_elevation_m": 93.04250827825861,
 "end_elevation_m": 147.22794509961145,
 "endpoint_gain_m": 54.18543682135284,
 "overall_gradient_pct": 6.185174820158087,
 "accumulated_ascent_m": 58.486560653238456,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 27.519844047044444,
   "start_distance_m": 520.0,
   "end_distance_m": 525.0,
   "midpoint_distance_m": 522.5,
   "start_elevation_m": 117.49397093628468,
   "end_elevation_m": 118.8699631386369,
   "start_xy": [
    417676.94356137834,
    4916217.507504961
   ],
   "end_xy": [
    417672.1060934168,
    4916218.771982608
   ]
  },
  "max_10m": {
   "gradient_pct": 23.63159709393244,
   "start_distance_m": 541.0,
   "end_distance_m": 551.0,
   "midpoint_distance_m": 546.0,
   "start_elevation_m": 121.51738425777131,
   "end_elevation_m": 123.88054396716456,
   "start_xy": [
    417656.62619593984,
    4916222.81831108
   ],
   "end_xy": [
    417646.95126001677,
    4916225.347266375
   ]
  },
  "max_20m": {
   "gradient_pct": 21.873510704173782,
   "start_distance_m": 534.0,
   "end_distance_m": 554.0,
   "midpoint_distance_m": 544.0,
   "start_elevation_m": 120.05969183723394,
   "end_elevation_m": 124.4343939780687,
   "start_xy": [
    417663.398651086,
    4916221.048042374
   ],
   "end_xy": [
    417644.0487792398,
    4916226.105952964
   ]
  },
  "max_25m": {
   "gradient_pct": 21.00024985965922,
   "start_distance_m": 534.0,
   "end_distance_m": 559.0,
   "midpoint_distance_m": 546.5,
   "start_elevation_m": 120.05969183723394,
   "end_elevation_m": 125.30975430214875,
   "start_xy": [
    417663.398651086,
    4916221.048042374
   ],
   "end_xy": [
    417639.2113112783,
    4916227.370430611
   ]
  },
  "max_50m": {
   "gradient_pct": 19.85768101084136,
   "start_distance_m": 518.0,
   "end_distance_m": 568.0,
   "midpoint_distance_m": 543.0,
   "start_elevation_m": 117.10833078620823,
   "end_elevation_m": 127.03717129162891,
   "start_xy": [
    417678.87854856293,
    4916217.001713902
   ],
   "end_xy": [
    417630.5038689475,
    4916229.646490377
   ]
  },
  "max_100m": {
   "gradient_pct": 17.44074993847798,
   "start_distance_m": 480.0,
   "end_distance_m": 580.0,
   "midpoint_distance_m": 530.0,
   "start_elevation_m": 111.86313627798427,
   "end_elevation_m": 129.30388621646225,
   "start_xy": [
    417715.6433050707,
    4916207.3916837815
   ],
   "end_xy": [
    417618.8939458398,
    4916232.681236731
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -8.029038553806345,
   "start_distance_m": 312.0,
   "end_distance_m": 317.0,
   "midpoint_distance_m": 314.5,
   "start_elevation_m": 106.74484673561639,
   "end_elevation_m": 106.34339480792607,
   "start_xy": [
    417822.30349846365,
    4916136.885160787
   ],
   "end_xy": [
    417817.336987959,
    4916137.462892046
   ]
  },
  "min_10m": {
   "gradient_pct": -7.219532926913814,
   "start_distance_m": 312.0,
   "end_distance_m": 322.0,
   "midpoint_distance_m": 317.0,
   "start_elevation_m": 106.74484673561639,
   "end_elevation_m": 106.02289344292501,
   "start_xy": [
    417822.30349846365,
    4916136.885160787
   ],
   "end_xy": [
    417812.37047745433,
    4916138.040623304
   ]
  },
  "min_20m": {
   "gradient_pct": -2.0605641035777467,
   "start_distance_m": 302.0,
   "end_distance_m": 322.0,
   "midpoint_distance_m": 312.0,
   "start_elevation_m": 106.43500626364056,
   "end_elevation_m": 106.02289344292501,
   "start_xy": [
    417829.77112440387,
    4916131.252672554
   ],
   "end_xy": [
    417812.37047745433,
    4916138.040623304
   ]
  },
  "min_25m": {
   "gradient_pct": -1.6440124359871788,
   "start_distance_m": 783.0,
   "end_distance_m": 808.0,
   "midpoint_distance_m": 795.5,
   "start_elevation_m": 142.1387359452816,
   "end_elevation_m": 141.72773283628482,
   "start_xy": [
    417564.61180155084,
    4916413.891068478
   ],
   "end_xy": [
    417564.28869999107,
    4916438.888980499
   ]
  },
  "min_50m": {
   "gradient_pct": -0.21998148224545844,
   "start_distance_m": 313.0,
   "end_distance_m": 363.0,
   "midpoint_distance_m": 338.0,
   "start_elevation_m": 106.79801768152622,
   "end_elevation_m": 106.68802694040349,
   "start_xy": [
    417821.31019636267,
    4916137.000707039
   ],
   "end_xy": [
    417776.74679605686,
    4916130.531623471
   ]
  },
  "min_100m": {
   "gradient_pct": 1.4336653325408832,
   "start_distance_m": 282.0,
   "end_distance_m": 382.0,
   "midpoint_distance_m": 332.0,
   "start_elevation_m": 105.91095825711906,
   "end_elevation_m": 107.34462358965995,
   "start_xy": [
    417842.34504998743,
    4916115.699653702
   ],
   "end_xy": [
    417773.7442926177,
    4916149.292886037
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 51.139010123573314,
   "start_distance_m": 645.0,
   "end_distance_m": 647.0,
   "midpoint_distance_m": 646.0,
   "start_elevation_m": 132.69703078897763,
   "end_elevation_m": 133.7198109914491,
   "start_xy": [
    417582.6592628544,
    4916277.246827294
   ],
   "end_xy": [
    417582.2925584581,
    4916279.212921872
   ]
  },
  "max_3m": {
   "gradient_pct": 37.74426866162438,
   "start_distance_m": 644.0,
   "end_distance_m": 647.0,
   "midpoint_distance_m": 645.5,
   "start_elevation_m": 132.58748293160036,
   "end_elevation_m": 133.7198109914491,
   "start_xy": [
    417582.8426150525,
    4916276.263780006
   ],
   "end_xy": [
    417582.2925584581,
    4916279.212921872
   ]
  }
 },
 "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": []
 },
 "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_x41y492_ME_SouthCentral_B22.tif"
  ],
  "calculated_at": "2026-08-24T20:36:06+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-3-260824",
  "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_SouthCentral_B22 (collected 2022)",
  "elevation_tile_ids": [
   "x41y492"
  ],
  "climb_origin": "discovered",
  "notes": "Coarse pass: max 10.6% over 200 m (Terrain 50), gain 21.2 m over 169 m way. EXTENDED by graph walk: +2 segment(s) at base, +1 at top (stop: base=no_descending_continuation, top=no_ascending_continuation; min_avg=2.0%). Review before adopting. 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": "Fayette",
  "county": "Maine"
 }
}