{
 "ocl_version": "0.1.0",
 "name": "Eels Road",
 "slug": "eels-road",
 "confidence": "U",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 39.01483219981401,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 2482.0,
   "end_distance_m": 2484.0,
   "start_elevation_m": 297.6034872651554,
   "end_elevation_m": 298.3837839091517,
   "min_gradient_pct": -7.4000256946163745
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 37.517000483781736,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 2482.0,
   "end_distance_m": 2485.0,
   "start_elevation_m": 297.6034872651554,
   "end_elevation_m": 298.7289972796689,
   "min_gradient_pct": -6.529293988188556
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 33.83880886695579,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 2481.0,
   "end_distance_m": 2486.0,
   "start_elevation_m": 297.29200579793417,
   "end_elevation_m": 298.98394624128196,
   "min_gradient_pct": -6.254784197933532
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 25.66299420109374,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 2476.0,
   "end_distance_m": 2486.0,
   "start_elevation_m": 296.4176468211726,
   "end_elevation_m": 298.98394624128196,
   "min_gradient_pct": -6.151489846809
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 22.44093879336674,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 2466.0,
   "end_distance_m": 2486.0,
   "start_elevation_m": 294.4957584826086,
   "end_elevation_m": 298.98394624128196,
   "min_gradient_pct": -5.922515557081169
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.656918201800636,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 2461.0,
   "end_distance_m": 2486.0,
   "start_elevation_m": 293.8197166908318,
   "end_elevation_m": 298.98394624128196,
   "min_gradient_pct": -5.746803741211124
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 17.56554149334511,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 2436.0,
   "end_distance_m": 2486.0,
   "start_elevation_m": 290.2011754946094,
   "end_elevation_m": 298.98394624128196,
   "min_gradient_pct": -4.3354662650548335
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 14.746925823874733,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 2386.0,
   "end_distance_m": 2486.0,
   "start_elevation_m": 284.2370204174072,
   "end_elevation_m": 298.98394624128196,
   "min_gradient_pct": -2.1276365189808075
  }
 ],
 "shape": {
  "ascent_concentration": 0.628,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 94.0,
  "shape_class": "stepped"
 },
 "length_m": 2618.023882900842,
 "start_elevation_m": 243.62758977843558,
 "end_elevation_m": 303.8791755880136,
 "endpoint_gain_m": 60.25158580957802,
 "overall_gradient_pct": 2.3014146739875274,
 "accumulated_ascent_m": 71.04337472343985,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 33.83880886695579,
   "start_distance_m": 2481.0,
   "end_distance_m": 2486.0,
   "midpoint_distance_m": 2483.5,
   "start_elevation_m": 297.29200579793417,
   "end_elevation_m": 298.98394624128196,
   "start_xy": [
    497545.7042447648,
    4924401.574468035
   ],
   "end_xy": [
    497550.16542846576,
    4924399.471470679
   ]
  },
  "max_10m": {
   "gradient_pct": 25.66299420109374,
   "start_distance_m": 2476.0,
   "end_distance_m": 2486.0,
   "midpoint_distance_m": 2481.0,
   "start_elevation_m": 296.4176468211726,
   "end_elevation_m": 298.98394624128196,
   "start_xy": [
    497540.7404977976,
    4924402.175480552
   ],
   "end_xy": [
    497550.16542846576,
    4924399.471470679
   ]
  },
  "max_20m": {
   "gradient_pct": 22.44093879336674,
   "start_distance_m": 2466.0,
   "end_distance_m": 2486.0,
   "midpoint_distance_m": 2476.0,
   "start_elevation_m": 294.4957584826086,
   "end_elevation_m": 298.98394624128196,
   "start_xy": [
    497530.80697871366,
    4924402.690196878
   ],
   "end_xy": [
    497550.16542846576,
    4924399.471470679
   ]
  },
  "max_25m": {
   "gradient_pct": 20.656918201800636,
   "start_distance_m": 2461.0,
   "end_distance_m": 2486.0,
   "midpoint_distance_m": 2473.5,
   "start_elevation_m": 293.8197166908318,
   "end_elevation_m": 298.98394624128196,
   "start_xy": [
    497525.83345810074,
    4924402.176297362
   ],
   "end_xy": [
    497550.16542846576,
    4924399.471470679
   ]
  },
  "max_50m": {
   "gradient_pct": 17.56554149334511,
   "start_distance_m": 2436.0,
   "end_distance_m": 2486.0,
   "midpoint_distance_m": 2461.0,
   "start_elevation_m": 290.2011754946094,
   "end_elevation_m": 298.98394624128196,
   "start_xy": [
    497501.99952753214,
    4924395.7035705075
   ],
   "end_xy": [
    497550.16542846576,
    4924399.471470679
   ]
  },
  "max_100m": {
   "gradient_pct": 14.746925823874733,
   "start_distance_m": 2386.0,
   "end_distance_m": 2486.0,
   "midpoint_distance_m": 2436.0,
   "start_elevation_m": 284.2370204174072,
   "end_elevation_m": 298.98394624128196,
   "start_xy": [
    497459.8381039201,
    4924368.825803505
   ],
   "end_xy": [
    497550.16542846576,
    4924399.471470679
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -6.254784197933532,
   "start_distance_m": 1773.0,
   "end_distance_m": 1778.0,
   "midpoint_distance_m": 1775.5,
   "start_elevation_m": 260.0219523950334,
   "end_elevation_m": 259.7092131851367,
   "start_xy": [
    496872.7319969252,
    4924227.244920871
   ],
   "end_xy": [
    496877.70196170104,
    4924227.792141235
   ]
  },
  "min_10m": {
   "gradient_pct": -6.151489846809,
   "start_distance_m": 1773.0,
   "end_distance_m": 1783.0,
   "midpoint_distance_m": 1778.0,
   "start_elevation_m": 260.0219523950334,
   "end_elevation_m": 259.4068034103525,
   "start_xy": [
    496872.7319969252,
    4924227.244920871
   ],
   "end_xy": [
    496882.6719264769,
    4924228.3393616
   ]
  },
  "min_20m": {
   "gradient_pct": -5.922515557081169,
   "start_distance_m": 1767.0,
   "end_distance_m": 1787.0,
   "midpoint_distance_m": 1777.0,
   "start_elevation_m": 260.37801810752217,
   "end_elevation_m": 259.19351499610593,
   "start_xy": [
    496866.7680391942,
    4924226.588256435
   ],
   "end_xy": [
    496886.6478982975,
    4924228.777137891
   ]
  },
  "min_25m": {
   "gradient_pct": -5.746803741211124,
   "start_distance_m": 1765.0,
   "end_distance_m": 1790.0,
   "midpoint_distance_m": 1777.5,
   "start_elevation_m": 260.4840543195699,
   "end_elevation_m": 259.0473533842671,
   "start_xy": [
    496864.7800532839,
    4924226.369368289
   ],
   "end_xy": [
    496889.62987716304,
    4924229.10547011
   ]
  },
  "min_50m": {
   "gradient_pct": -4.3354662650548335,
   "start_distance_m": 1759.0,
   "end_distance_m": 1809.0,
   "midpoint_distance_m": 1784.0,
   "start_elevation_m": 260.6951816043071,
   "end_elevation_m": 258.5274484717797,
   "start_xy": [
    496858.8160955529,
    4924225.712703851
   ],
   "end_xy": [
    496908.5157433112,
    4924231.184907494
   ]
  },
  "min_100m": {
   "gradient_pct": -2.1276365189808075,
   "start_distance_m": 1744.0,
   "end_distance_m": 1844.0,
   "midpoint_distance_m": 1794.0,
   "start_elevation_m": 260.7049435632287,
   "end_elevation_m": 258.5773070442479,
   "start_xy": [
    496843.9062012254,
    4924224.071042758
   ],
   "end_xy": [
    496943.338312732,
    4924234.678657368
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 39.01483219981401,
   "start_distance_m": 2482.0,
   "end_distance_m": 2484.0,
   "midpoint_distance_m": 2483.0,
   "start_elevation_m": 297.6034872651554,
   "end_elevation_m": 298.3837839091517,
   "start_xy": [
    497546.69699415826,
    4924401.454265531
   ],
   "end_xy": [
    497548.4350666937,
    4924400.474390485
   ]
  },
  "max_3m": {
   "gradient_pct": 37.517000483781736,
   "start_distance_m": 2482.0,
   "end_distance_m": 2485.0,
   "midpoint_distance_m": 2483.5,
   "start_elevation_m": 297.6034872651554,
   "end_elevation_m": 298.7289972796689,
   "start_xy": [
    497546.69699415826,
    4924401.454265531
   ],
   "end_xy": [
    497549.3002475797,
    4924399.972930582
   ]
  }
 },
 "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": {
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.306,
   "obstruction_max_height_m": 32.75,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "review": [
   "short_window_divergence"
  ],
  "extent": [
   "descends_at_start"
  ]
 },
 "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/ny/USGS_one_meter_x49y493_NY_FEMA_R2_B2_2016.tif"
  ],
  "calculated_at": "2026-09-06T11:36:55+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/new-york-2026-09-06-batch-band2.osm.pbf",
  "osm_snapshot": "",
  "run_id": "ny-run3-260906",
  "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, NY_FEMA_R2_B2_2016 (collected 2016)",
  "elevation_tile_ids": [
   "x49y493"
  ],
  "climb_origin": "discovered",
  "canopy_source": {
   "kind": "ept_corridor_max_return",
   "ept_source": "https://usgs-lidar-public.s3-us-west-2.amazonaws.com/USGS_LPC_NY_FEMA_R2_B2_2016_LAS_2018",
   "ept_crs": "EPSG:3857",
   "station_coverage": 0.994,
   "cell_ground_m": 1.0,
   "nodes_failed": 0
  },
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Pierrepont",
  "county": "New York"
 }
}