{
 "ocl_version": "0.1.0",
 "name": "Keyes Pond Road",
 "slug": "keyes-pond-road",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 31.868777695079586,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 149.0,
   "end_distance_m": 151.0,
   "start_elevation_m": 166.86851829523997,
   "end_elevation_m": 167.50589384914156,
   "min_gradient_pct": -14.08785875902936
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 29.525354345948546,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 198.0,
   "end_distance_m": 201.0,
   "start_elevation_m": 176.1741973190368,
   "end_elevation_m": 177.05995794941526,
   "min_gradient_pct": -11.851828517995008
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 29.25703238393112,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 196.0,
   "end_distance_m": 201.0,
   "start_elevation_m": 175.5971063302187,
   "end_elevation_m": 177.05995794941526,
   "min_gradient_pct": -8.821046015360707
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 26.454195740543014,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 191.0,
   "end_distance_m": 201.0,
   "start_elevation_m": 174.41453837536096,
   "end_elevation_m": 177.05995794941526,
   "min_gradient_pct": -7.226113642301755
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 24.83944764456382,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 182.0,
   "end_distance_m": 202.0,
   "start_elevation_m": 172.35716364156383,
   "end_elevation_m": 177.3250531704766,
   "min_gradient_pct": -5.867052442194307
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 23.496318952414867,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 181.0,
   "end_distance_m": 206.0,
   "start_elevation_m": 172.19079608311017,
   "end_elevation_m": 178.0648758212139,
   "min_gradient_pct": -5.330786807788627
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.97304717116532,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 179.0,
   "end_distance_m": 229.0,
   "start_elevation_m": 171.93716804762067,
   "end_elevation_m": 181.92369163320333,
   "min_gradient_pct": -1.0986299348863326
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 18.65871536662911,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 126.0,
   "end_distance_m": 226.0,
   "start_elevation_m": 162.9454400486176,
   "end_elevation_m": 181.6041554152467,
   "min_gradient_pct": 1.4346513761416304
  }
 ],
 "shape": {
  "ascent_concentration": 0.464,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 149.0,
  "shape_class": "stepped"
 },
 "length_m": 558.7012666373096,
 "start_elevation_m": 156.43993067378585,
 "end_elevation_m": 204.32455758670983,
 "endpoint_gain_m": 47.88462691292398,
 "overall_gradient_pct": 8.570703123894848,
 "accumulated_ascent_m": 51.629797589581386,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 29.25703238393112,
   "start_distance_m": 196.0,
   "end_distance_m": 201.0,
   "midpoint_distance_m": 198.5,
   "start_elevation_m": 175.5971063302187,
   "end_elevation_m": 177.05995794941526,
   "start_xy": [
    354248.22654596216,
    4890247.122265562
   ],
   "end_xy": [
    354253.1656436121,
    4890246.344250243
   ]
  },
  "max_10m": {
   "gradient_pct": 26.454195740543014,
   "start_distance_m": 191.0,
   "end_distance_m": 201.0,
   "midpoint_distance_m": 196.0,
   "start_elevation_m": 174.41453837536096,
   "end_elevation_m": 177.05995794941526,
   "start_xy": [
    354243.8623027239,
    4890249.535346973
   ],
   "end_xy": [
    354253.1656436121,
    4890246.344250243
   ]
  },
  "max_20m": {
   "gradient_pct": 24.83944764456382,
   "start_distance_m": 182.0,
   "end_distance_m": 202.0,
   "midpoint_distance_m": 192.0,
   "start_elevation_m": 172.35716364156383,
   "end_elevation_m": 177.3250531704766,
   "start_xy": [
    354236.13852197607,
    4890254.155215881
   ],
   "end_xy": [
    354254.15354652656,
    4890246.189176864
   ]
  },
  "max_25m": {
   "gradient_pct": 23.496318952414867,
   "start_distance_m": 181.0,
   "end_distance_m": 206.0,
   "midpoint_distance_m": 193.5,
   "start_elevation_m": 172.19079608311017,
   "end_elevation_m": 178.0648758212139,
   "start_xy": [
    354235.28023569,
    4890254.668387053
   ],
   "end_xy": [
    354258.1047414139,
    4890245.5662349
   ]
  },
  "max_50m": {
   "gradient_pct": 19.97304717116532,
   "start_distance_m": 179.0,
   "end_distance_m": 229.0,
   "midpoint_distance_m": 204.0,
   "start_elevation_m": 171.93716804762067,
   "end_elevation_m": 181.92369163320333,
   "start_xy": [
    354233.5638402716,
    4890255.695025572
   ],
   "end_xy": [
    354280.82751000405,
    4890242.009968018
   ]
  },
  "max_100m": {
   "gradient_pct": 18.65871536662911,
   "start_distance_m": 126.0,
   "end_distance_m": 226.0,
   "midpoint_distance_m": 176.0,
   "start_elevation_m": 162.9454400486176,
   "end_elevation_m": 181.6041554152467,
   "start_xy": [
    354184.7866191156,
    4890274.05184316
   ],
   "end_xy": [
    354277.8612940707,
    4890242.45520276
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -8.821046015360707,
   "start_distance_m": 346.0,
   "end_distance_m": 351.0,
   "midpoint_distance_m": 348.5,
   "start_elevation_m": 196.5540873905571,
   "end_elevation_m": 196.11303508978907,
   "start_xy": [
    354387.5873208631,
    4890202.893694649
   ],
   "end_xy": [
    354391.71075283375,
    4890200.065745029
   ]
  },
  "min_10m": {
   "gradient_pct": -7.226113642301755,
   "start_distance_m": 348.0,
   "end_distance_m": 358.0,
   "midpoint_distance_m": 353.0,
   "start_elevation_m": 196.40148333382177,
   "end_elevation_m": 195.6788719695916,
   "start_xy": [
    354389.2367239625,
    4890201.762559075
   ],
   "end_xy": [
    354397.48430523917,
    4890196.107705382
   ]
  },
  "min_20m": {
   "gradient_pct": -5.867052442194307,
   "start_distance_m": 346.0,
   "end_distance_m": 366.0,
   "midpoint_distance_m": 356.0,
   "start_elevation_m": 196.5540873905571,
   "end_elevation_m": 195.38067690211824,
   "start_xy": [
    354387.5873208631,
    4890202.893694649
   ],
   "end_xy": [
    354404.08229482296,
    4890191.583712537
   ]
  },
  "min_25m": {
   "gradient_pct": -5.330786807788627,
   "start_distance_m": 342.0,
   "end_distance_m": 367.0,
   "midpoint_distance_m": 354.5,
   "start_elevation_m": 196.7363022580239,
   "end_elevation_m": 195.40360555607674,
   "start_xy": [
    354384.0127865254,
    4890204.628711964
   ],
   "end_xy": [
    354404.90673198155,
    4890191.017759309
   ]
  },
  "min_50m": {
   "gradient_pct": -1.0986299348863326,
   "start_distance_m": 341.0,
   "end_distance_m": 391.0,
   "midpoint_distance_m": 366.0,
   "start_elevation_m": 196.678193482143,
   "end_elevation_m": 196.12887851469984,
   "start_xy": [
    354383.06751676655,
    4890204.955001623
   ],
   "end_xy": [
    354426.08245329553,
    4890180.220744911
   ]
  },
  "min_100m": {
   "gradient_pct": 1.4346513761416304,
   "start_distance_m": 342.0,
   "end_distance_m": 442.0,
   "midpoint_distance_m": 392.0,
   "start_elevation_m": 196.7363022580239,
   "end_elevation_m": 198.17095363416553,
   "start_xy": [
    354384.0127865254,
    4890204.628711964
   ],
   "end_xy": [
    354475.6139545049,
    4890171.955390798
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 31.868777695079586,
   "start_distance_m": 149.0,
   "end_distance_m": 151.0,
   "midpoint_distance_m": 150.0,
   "start_elevation_m": 166.86851829523997,
   "end_elevation_m": 167.50589384914156,
   "start_xy": [
    354207.44262304105,
    4890270.088842474
   ],
   "end_xy": [
    354209.41281120304,
    4890269.744809617
   ]
  },
  "max_3m": {
   "gradient_pct": 29.525354345948546,
   "start_distance_m": 198.0,
   "end_distance_m": 201.0,
   "midpoint_distance_m": 199.5,
   "start_elevation_m": 176.1741973190368,
   "end_elevation_m": 177.05995794941526,
   "start_xy": [
    354250.2022097068,
    4890246.811216095
   ],
   "end_xy": [
    354253.1656436121,
    4890246.344250243
   ]
  }
 },
 "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_x35y490_ME_WesternMtns_B24.tif"
  ],
  "calculated_at": "2026-09-03T18:06:10+00:00",
  "road_source": "/mnt/HC_Volume_106727764/site-corpus-fresh/us/keyes-pond-road/keyes-pond-road.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": [
   "x35y490"
  ],
  "climb_origin": "discovered",
  "canopy_check": "unavailable \u2014 EPT corridor failed: NH_Umbagog_2016: no corridor points fetched; USGS_LPC_ME_NRCS_Lot4_2013_LAS_2015: no corridor points fetched; ME_SouthCentral_1_B22: no corridor points fetched",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing.html"
 },
 "area": {
  "place": "Sweden",
  "county": "Maine"
 }
}