{
 "ocl_version": "0.1.0",
 "name": "East Hill Road",
 "slug": "east-hill-road-6",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 21.279202556948462,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1628.0,
   "end_distance_m": 1630.0,
   "start_elevation_m": 437.05493623451537,
   "end_elevation_m": 437.48052028565434,
   "min_gradient_pct": -16.619106946086504
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 21.06239130674415,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1626.0,
   "end_distance_m": 1629.0,
   "start_elevation_m": 436.63784312767007,
   "end_elevation_m": 437.2697148668724,
   "min_gradient_pct": -16.48485563728362
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 20.809101689868612,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1626.0,
   "end_distance_m": 1631.0,
   "start_elevation_m": 436.63784312767007,
   "end_elevation_m": 437.6782982121635,
   "min_gradient_pct": -16.40712200719804
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 20.542440264330253,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1622.0,
   "end_distance_m": 1632.0,
   "start_elevation_m": 435.83162267201607,
   "end_elevation_m": 437.8858666984491,
   "min_gradient_pct": -16.31713632112792
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.182716825511307,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1622.0,
   "end_distance_m": 1642.0,
   "start_elevation_m": 435.83162267201607,
   "end_elevation_m": 439.8681660371183,
   "min_gradient_pct": -15.56144428715129
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.035266017049253,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1618.0,
   "end_distance_m": 1643.0,
   "start_elevation_m": 435.05271533119503,
   "end_elevation_m": 440.06153183545734,
   "min_gradient_pct": -15.30440218218041
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.142274842302413,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1600.0,
   "end_distance_m": 1650.0,
   "start_elevation_m": 431.73118352633526,
   "end_elevation_m": 441.30232094748646,
   "min_gradient_pct": -13.44493114959073
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 16.724518010870213,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1590.0,
   "end_distance_m": 1690.0,
   "start_elevation_m": 430.1616868934367,
   "end_elevation_m": 446.8862049043069,
   "min_gradient_pct": -12.04253307176566
  }
 ],
 "shape": {
  "ascent_concentration": 0.541,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 209.0,
  "shape_class": "stepped"
 },
 "length_m": 3169.570538171668,
 "start_elevation_m": 395.4231408371717,
 "end_elevation_m": 461.74439874390276,
 "endpoint_gain_m": 66.32125790673109,
 "overall_gradient_pct": 2.0924367231463408,
 "accumulated_ascent_m": 139.01950341781196,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 20.809101689868612,
   "start_distance_m": 1626.0,
   "end_distance_m": 1631.0,
   "midpoint_distance_m": 1628.5,
   "start_elevation_m": 436.63784312767007,
   "end_elevation_m": 437.6782982121635,
   "start_xy": [
    687858.3524939218,
    4803449.210914219
   ],
   "end_xy": [
    687861.1155552289,
    4803445.043723217
   ]
  },
  "max_10m": {
   "gradient_pct": 20.542440264330253,
   "start_distance_m": 1622.0,
   "end_distance_m": 1632.0,
   "midpoint_distance_m": 1627.0,
   "start_elevation_m": 435.83162267201607,
   "end_elevation_m": 437.8858666984491,
   "start_xy": [
    687856.1424706706,
    4803452.544949243
   ],
   "end_xy": [
    687861.6681552298,
    4803444.2102766195
   ]
  },
  "max_20m": {
   "gradient_pct": 20.182716825511307,
   "start_distance_m": 1622.0,
   "end_distance_m": 1642.0,
   "midpoint_distance_m": 1632.0,
   "start_elevation_m": 435.83162267201607,
   "end_elevation_m": 439.8681660371183,
   "start_xy": [
    687856.1424706706,
    4803452.544949243
   ],
   "end_xy": [
    687866.2585143421,
    4803435.332971316
   ]
  },
  "max_25m": {
   "gradient_pct": 20.035266017049253,
   "start_distance_m": 1618.0,
   "end_distance_m": 1643.0,
   "midpoint_distance_m": 1630.5,
   "start_elevation_m": 435.05271533119503,
   "end_elevation_m": 440.06153183545734,
   "start_xy": [
    687853.9324474192,
    4803455.878984268
   ],
   "end_xy": [
    687866.7056879438,
    4803434.438524139
   ]
  },
  "max_50m": {
   "gradient_pct": 19.142274842302413,
   "start_distance_m": 1600.0,
   "end_distance_m": 1650.0,
   "midpoint_distance_m": 1625.0,
   "start_elevation_m": 431.73118352633526,
   "end_elevation_m": 441.30232094748646,
   "start_xy": [
    687842.7116894114,
    4803469.875988917
   ],
   "end_xy": [
    687869.8346229272,
    4803428.176754146
   ]
  },
  "max_100m": {
   "gradient_pct": 16.724518010870213,
   "start_distance_m": 1590.0,
   "end_distance_m": 1690.0,
   "midpoint_distance_m": 1640.0,
   "start_elevation_m": 430.1616868934367,
   "end_elevation_m": 446.8862049043069,
   "start_xy": [
    687835.8717796175,
    4803477.170892776
   ],
   "end_xy": [
    687887.7160060324,
    4803392.396088394
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -16.40712200719804,
   "start_distance_m": 2430.0,
   "end_distance_m": 2435.0,
   "midpoint_distance_m": 2432.5,
   "start_elevation_m": 446.44179615766427,
   "end_elevation_m": 445.62144005730437,
   "start_xy": [
    688255.3730463543,
    4803643.123437693
   ],
   "end_xy": [
    688255.6720494361,
    4803648.114488954
   ]
  },
  "min_10m": {
   "gradient_pct": -16.31713632112792,
   "start_distance_m": 2430.0,
   "end_distance_m": 2440.0,
   "midpoint_distance_m": 2435.0,
   "start_elevation_m": 446.44179615766427,
   "end_elevation_m": 444.8100825255515,
   "start_xy": [
    688255.3730463543,
    4803643.123437693
   ],
   "end_xy": [
    688255.9710525215,
    4803653.105540273
   ]
  },
  "min_20m": {
   "gradient_pct": -15.56144428715129,
   "start_distance_m": 2426.0,
   "end_distance_m": 2446.0,
   "midpoint_distance_m": 2436.0,
   "start_elevation_m": 447.04646965258803,
   "end_elevation_m": 443.9341807951578,
   "start_xy": [
    688254.9993853561,
    4803639.141184294
   ],
   "end_xy": [
    688256.2319001383,
    4803659.096742957
   ]
  },
  "min_25m": {
   "gradient_pct": -15.30440218218041,
   "start_distance_m": 2423.0,
   "end_distance_m": 2448.0,
   "midpoint_distance_m": 2435.5,
   "start_elevation_m": 447.4681492498882,
   "end_elevation_m": 443.6420487043431,
   "start_xy": [
    688254.7000486527,
    4803636.1561556505
   ],
   "end_xy": [
    688256.1348852437,
    4803661.094388365
   ]
  },
  "min_50m": {
   "gradient_pct": -13.44493114959073,
   "start_distance_m": 2415.0,
   "end_distance_m": 2465.0,
   "midpoint_distance_m": 2440.0,
   "start_elevation_m": 448.4169616286818,
   "end_elevation_m": 441.69449605388644,
   "start_xy": [
    688253.90203885,
    4803628.19605713
   ],
   "end_xy": [
    688254.8925290785,
    4803678.033435136
   ]
  },
  "min_100m": {
   "gradient_pct": -12.04253307176566,
   "start_distance_m": 2405.0,
   "end_distance_m": 2505.0,
   "midpoint_distance_m": 2455.0,
   "start_elevation_m": 449.4010159024814,
   "end_elevation_m": 437.35848283071573,
   "start_xy": [
    688253.2196973658,
    4803618.220160823
   ],
   "end_xy": [
    688250.607,
    4803717.766842856
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 21.279202556948462,
   "start_distance_m": 1628.0,
   "end_distance_m": 1630.0,
   "midpoint_distance_m": 1629.0,
   "start_elevation_m": 437.05493623451537,
   "end_elevation_m": 437.48052028565434,
   "start_xy": [
    687859.4575055478,
    4803447.543896707
   ],
   "end_xy": [
    687860.5625171735,
    4803445.876879195
   ]
  },
  "max_3m": {
   "gradient_pct": 21.06239130674415,
   "start_distance_m": 1626.0,
   "end_distance_m": 1629.0,
   "midpoint_distance_m": 1627.5,
   "start_elevation_m": 436.63784312767007,
   "end_elevation_m": 437.2697148668724,
   "start_xy": [
    687858.3524939218,
    4803449.210914219
   ],
   "end_xy": [
    687860.0104750451,
    4803446.710695311
   ]
  }
 },
 "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": [
   "descends_at_start"
  ],
  "suggested_summit_cut_m": 2064.0,
  "trailing_descent_m": 11.0
 },
 "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:26918",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/usa/vt/USGS_1M_18_x68y481_VT_Statewide_A23.tif"
  ],
  "calculated_at": "2026-09-03T17:53:44+00:00",
  "road_source": "/mnt/HC_Volume_106727764/site-corpus-fresh/us/east-hill-road-6/east-hill-road-6.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, VT_Statewide_A23 (collected 2023)",
  "elevation_tile_ids": [
   "x68y481"
  ],
  "climb_origin": "discovered",
  "canopy_check": "unavailable \u2014 EPT corridor failed: VT_Statewide_2_A23: no EPT nodes intersect the corridor; VT_Statewide_1_A23: no EPT nodes intersect the corridor",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing.html"
 },
 "area": {
  "place": "Ludlow",
  "county": "Vermont"
 }
}