{
 "ocl_version": "0.1.0",
 "name": "Kirkwold Camp Road",
 "slug": "kirkwold-camp-road",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 37.80249462393499,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 394.0,
   "end_distance_m": 396.0,
   "start_elevation_m": 136.45434072868477,
   "end_elevation_m": 137.21039062116347,
   "min_gradient_pct": -38.50189014123231
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 37.60508385417438,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 393.0,
   "end_distance_m": 396.0,
   "start_elevation_m": 136.08223810553824,
   "end_elevation_m": 137.21039062116347,
   "min_gradient_pct": -25.576787141684083
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 37.31770196126433,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 391.0,
   "end_distance_m": 396.0,
   "start_elevation_m": 135.34450552310025,
   "end_elevation_m": 137.21039062116347,
   "min_gradient_pct": -15.679516811296708
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 33.97143238383279,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 388.0,
   "end_distance_m": 398.0,
   "start_elevation_m": 134.42429188513248,
   "end_elevation_m": 137.82143512351576,
   "min_gradient_pct": -7.518663710834517
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 28.125019899258206,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 384.0,
   "end_distance_m": 404.0,
   "start_elevation_m": 133.63496562194052,
   "end_elevation_m": 139.25996960179216,
   "min_gradient_pct": 0.24364958913523083
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 26.710432797716862,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 377.0,
   "end_distance_m": 402.0,
   "start_elevation_m": 132.24146494237758,
   "end_elevation_m": 138.9190731418068,
   "min_gradient_pct": 1.9557239859332185
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.842301886034193,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 353.0,
   "end_distance_m": 403.0,
   "start_elevation_m": 129.18706185195217,
   "end_elevation_m": 139.10821279496926,
   "min_gradient_pct": 3.339041748607002
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 15.945451640224887,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 303.0,
   "end_distance_m": 403.0,
   "start_elevation_m": 123.16276115474437,
   "end_elevation_m": 139.10821279496926,
   "min_gradient_pct": 6.564512813933192
  }
 ],
 "shape": {
  "ascent_concentration": 0.348,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 51.0,
  "shape_class": "sustained"
 },
 "length_m": 663.5300179277403,
 "start_elevation_m": 95.18410575401258,
 "end_elevation_m": 160.04122739111335,
 "endpoint_gain_m": 64.85712163710078,
 "overall_gradient_pct": 9.77455727468894,
 "accumulated_ascent_m": 67.35884636241381,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 37.31770196126433,
   "start_distance_m": 391.0,
   "end_distance_m": 396.0,
   "midpoint_distance_m": 393.5,
   "start_elevation_m": 135.34450552310025,
   "end_elevation_m": 137.21039062116347,
   "start_xy": [
    418973.98733798636,
    4915670.268554161
   ],
   "end_xy": [
    418978.9868980222,
    4915670.202225822
   ]
  },
  "max_10m": {
   "gradient_pct": 33.97143238383279,
   "start_distance_m": 388.0,
   "end_distance_m": 398.0,
   "midpoint_distance_m": 393.0,
   "start_elevation_m": 134.42429188513248,
   "end_elevation_m": 137.82143512351576,
   "start_xy": [
    418970.9876019649,
    4915670.308351165
   ],
   "end_xy": [
    418980.9867220365,
    4915670.175694486
   ]
  },
  "max_20m": {
   "gradient_pct": 28.125019899258206,
   "start_distance_m": 384.0,
   "end_distance_m": 404.0,
   "midpoint_distance_m": 394.0,
   "start_elevation_m": 133.63496562194052,
   "end_elevation_m": 139.25996960179216,
   "start_xy": [
    418966.9879539363,
    4915670.361413836
   ],
   "end_xy": [
    418986.98619407945,
    4915670.096100479
   ]
  },
  "max_25m": {
   "gradient_pct": 26.710432797716862,
   "start_distance_m": 377.0,
   "end_distance_m": 402.0,
   "midpoint_distance_m": 389.5,
   "start_elevation_m": 132.24146494237758,
   "end_elevation_m": 138.9190731418068,
   "start_xy": [
    418959.9885698862,
    4915670.45427351
   ],
   "end_xy": [
    418984.98637006513,
    4915670.122631815
   ]
  },
  "max_50m": {
   "gradient_pct": 19.842301886034193,
   "start_distance_m": 353.0,
   "end_distance_m": 403.0,
   "midpoint_distance_m": 378.0,
   "start_elevation_m": 129.18706185195217,
   "end_elevation_m": 139.10821279496926,
   "start_xy": [
    418935.9906817144,
    4915670.772649537
   ],
   "end_xy": [
    418985.98628207226,
    4915670.109366147
   ]
  },
  "max_100m": {
   "gradient_pct": 15.945451640224887,
   "start_distance_m": 303.0,
   "end_distance_m": 403.0,
   "midpoint_distance_m": 353.0,
   "start_elevation_m": 123.16276115474437,
   "end_elevation_m": 139.10821279496926,
   "start_xy": [
    418886.1755901803,
    4915673.764882447
   ],
   "end_xy": [
    418985.98628207226,
    4915670.109366147
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -15.679516811296708,
   "start_distance_m": 561.0,
   "end_distance_m": 566.0,
   "midpoint_distance_m": 563.5,
   "start_elevation_m": 150.8926484692517,
   "end_elevation_m": 150.10867262868686,
   "start_xy": [
    419142.67480823526,
    4915652.797483751
   ],
   "end_xy": [
    419147.6669653534,
    4915652.517542137
   ]
  },
  "min_10m": {
   "gradient_pct": -7.518663710834517,
   "start_distance_m": 556.0,
   "end_distance_m": 566.0,
   "midpoint_distance_m": 561.0,
   "start_elevation_m": 150.8605389997703,
   "end_elevation_m": 150.10867262868686,
   "start_xy": [
    419137.71075071313,
    4915653.3395574335
   ],
   "end_xy": [
    419147.6669653534,
    4915652.517542137
   ]
  },
  "min_20m": {
   "gradient_pct": 0.24364958913523083,
   "start_distance_m": 547.0,
   "end_distance_m": 567.0,
   "midpoint_distance_m": 557.0,
   "start_elevation_m": 150.0536757343442,
   "end_elevation_m": 150.10240565217126,
   "start_xy": [
    419128.8222322307,
    4915654.751732772
   ],
   "end_xy": [
    419148.66539677704,
    4915652.461553814
   ]
  },
  "min_25m": {
   "gradient_pct": 1.9557239859332185,
   "start_distance_m": 542.0,
   "end_distance_m": 567.0,
   "midpoint_distance_m": 554.5,
   "start_elevation_m": 149.61347465568795,
   "end_elevation_m": 150.10240565217126,
   "start_xy": [
    419123.8841664071,
    4915655.536274627
   ],
   "end_xy": [
    419148.66539677704,
    4915652.461553814
   ]
  },
  "min_50m": {
   "gradient_pct": 3.339041748607002,
   "start_distance_m": 221.0,
   "end_distance_m": 271.0,
   "midpoint_distance_m": 246.0,
   "start_elevation_m": 116.92888258744951,
   "end_elevation_m": 118.59840346175301,
   "start_xy": [
    418805.4998167484,
    4915676.992262729
   ],
   "end_xy": [
    418854.4951311025,
    4915678.275815014
   ]
  },
  "min_100m": {
   "gradient_pct": 6.564512813933192,
   "start_distance_m": 467.0,
   "end_distance_m": 567.0,
   "midpoint_distance_m": 517.0,
   "start_elevation_m": 143.53789283823806,
   "end_elevation_m": 150.10240565217126,
   "start_xy": [
    419049.8131790534,
    4915667.30440245
   ],
   "end_xy": [
    419148.66539677704,
    4915652.461553814
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 37.80249462393499,
   "start_distance_m": 394.0,
   "end_distance_m": 396.0,
   "midpoint_distance_m": 395.0,
   "start_elevation_m": 136.45434072868477,
   "end_elevation_m": 137.21039062116347,
   "start_xy": [
    418976.98707400786,
    4915670.228757158
   ],
   "end_xy": [
    418978.9868980222,
    4915670.202225822
   ]
  },
  "max_3m": {
   "gradient_pct": 37.60508385417438,
   "start_distance_m": 393.0,
   "end_distance_m": 396.0,
   "midpoint_distance_m": 394.5,
   "start_elevation_m": 136.08223810553824,
   "end_elevation_m": 137.21039062116347,
   "start_xy": [
    418975.9871620007,
    4915670.242022825
   ],
   "end_xy": [
    418978.9868980222,
    4915670.202225822
   ]
  }
 },
 "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": 0.009,
   "windows_resited": [],
   "windows_unresolved": []
  },
  "excluded_ranges_m": [
   [
    560.0,
    565.0
   ]
  ],
  "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_x41y492_ME_SouthCentral_B22.tif"
  ],
  "calculated_at": "2026-08-24T20:38:08+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, ME_SouthCentral_B22 (collected 2022)",
  "elevation_tile_ids": [
   "x41y492"
  ],
  "climb_origin": "discovered",
  "notes": "Coarse pass: max 12.0% over 200 m (Terrain 50), gain 64.8 m over 664 m way. KEPT at seed extent: no ascending continuation (min_avg=2.0%). ADOPTED (NE wave 1, 2026-08-25): clean-steep,qualified-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": "Readfield",
  "county": "Maine"
 }
}