{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (41.5622, -75.8315)",
 "slug": "discovered-lane-41-5622-75-8315",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 22.145106040565565,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 155.0,
   "end_distance_m": 157.0,
   "start_elevation_m": 283.67310316845146,
   "end_elevation_m": 284.1160052892628,
   "min_gradient_pct": -10.294082788774972
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 21.92657212981241,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 154.0,
   "end_distance_m": 157.0,
   "start_elevation_m": 283.4582081253684,
   "end_elevation_m": 284.1160052892628,
   "min_gradient_pct": -9.909270925112423
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 21.775527803573596,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 152.0,
   "end_distance_m": 157.0,
   "start_elevation_m": 283.0272288990841,
   "end_elevation_m": 284.1160052892628,
   "min_gradient_pct": -9.807911071318358
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 21.35656522986494,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 148.0,
   "end_distance_m": 158.0,
   "start_elevation_m": 282.1918191941384,
   "end_elevation_m": 284.3274757171249,
   "min_gradient_pct": -9.269687981066568
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.78161501718256,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 145.0,
   "end_distance_m": 165.0,
   "start_elevation_m": 281.56924602923254,
   "end_elevation_m": 285.72556903266906,
   "min_gradient_pct": -8.247450293316376
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.63590447786828,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 143.0,
   "end_distance_m": 168.0,
   "start_elevation_m": 281.1728239986323,
   "end_elevation_m": 286.33180011809935,
   "min_gradient_pct": -7.677616368289364
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.335054924873475,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 120.0,
   "end_distance_m": 170.0,
   "start_elevation_m": 277.01016550693487,
   "end_elevation_m": 286.6776929693716,
   "min_gradient_pct": -6.896105990467049
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 16.314273008624014,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 70.0,
   "end_distance_m": 170.0,
   "start_elevation_m": 270.3634199607476,
   "end_elevation_m": 286.6776929693716,
   "min_gradient_pct": -4.425086902676753
  }
 ],
 "shape": {
  "ascent_concentration": 0.593,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 195.0,
  "shape_class": "stepped"
 },
 "length_m": 1101.8802760398764,
 "start_elevation_m": 263.0318207562285,
 "end_elevation_m": 307.1082178914238,
 "endpoint_gain_m": 44.07639713519529,
 "overall_gradient_pct": 4.000107642692771,
 "accumulated_ascent_m": 53.83177780969072,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 21.775527803573596,
   "start_distance_m": 152.0,
   "end_distance_m": 157.0,
   "midpoint_distance_m": 154.5,
   "start_elevation_m": 283.0272288990841,
   "end_elevation_m": 284.1160052892628,
   "start_xy": [
    430628.07904883864,
    4601234.906194433
   ],
   "end_xy": [
    430625.9177236876,
    4601239.414927469
   ]
  },
  "max_10m": {
   "gradient_pct": 21.35656522986494,
   "start_distance_m": 148.0,
   "end_distance_m": 158.0,
   "midpoint_distance_m": 153.0,
   "start_elevation_m": 282.1918191941384,
   "end_elevation_m": 284.3274757171249,
   "start_xy": [
    430629.8081089595,
    4601231.299208004
   ],
   "end_xy": [
    430625.4854586574,
    4601240.316674076
   ]
  },
  "max_20m": {
   "gradient_pct": 20.78161501718256,
   "start_distance_m": 145.0,
   "end_distance_m": 165.0,
   "midpoint_distance_m": 155.0,
   "start_elevation_m": 281.56924602923254,
   "end_elevation_m": 285.72556903266906,
   "start_xy": [
    430631.1049040501,
    4601228.593968182
   ],
   "end_xy": [
    430622.45960344584,
    4601246.628900327
   ]
  },
  "max_25m": {
   "gradient_pct": 20.63590447786828,
   "start_distance_m": 143.0,
   "end_distance_m": 168.0,
   "midpoint_distance_m": 155.5,
   "start_elevation_m": 281.1728239986323,
   "end_elevation_m": 286.33180011809935,
   "start_xy": [
    430631.96943411056,
    4601226.790474967
   ],
   "end_xy": [
    430621.16280835524,
    4601249.334140148
   ]
  },
  "max_50m": {
   "gradient_pct": 19.335054924873475,
   "start_distance_m": 120.0,
   "end_distance_m": 170.0,
   "midpoint_distance_m": 145.0,
   "start_elevation_m": 277.01016550693487,
   "end_elevation_m": 286.6776929693716,
   "start_xy": [
    430638.9569852835,
    4601205.041463481
   ],
   "end_xy": [
    430620.2982782948,
    4601251.137633363
   ]
  },
  "max_100m": {
   "gradient_pct": 16.314273008624014,
   "start_distance_m": 70.0,
   "end_distance_m": 170.0,
   "midpoint_distance_m": 120.0,
   "start_elevation_m": 270.3634199607476,
   "end_elevation_m": 286.6776929693716,
   "start_xy": [
    430673.1777785394,
    4601179.927662627
   ],
   "end_xy": [
    430620.2982782948,
    4601251.137633363
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -9.807911071318358,
   "start_distance_m": 743.0,
   "end_distance_m": 748.0,
   "midpoint_distance_m": 745.5,
   "start_elevation_m": 290.53861790715183,
   "end_elevation_m": 290.0482223535859,
   "start_xy": [
    430516.24887034914,
    4601681.794112142
   ],
   "end_xy": [
    430511.47702743695,
    4601680.300956015
   ]
  },
  "min_10m": {
   "gradient_pct": -9.269687981066568,
   "start_distance_m": 738.0,
   "end_distance_m": 748.0,
   "midpoint_distance_m": 743.0,
   "start_elevation_m": 290.97519115169257,
   "end_elevation_m": 290.0482223535859,
   "start_xy": [
    430521.0207132613,
    4601683.287268269
   ],
   "end_xy": [
    430511.47702743695,
    4601680.300956015
   ]
  },
  "min_20m": {
   "gradient_pct": -8.247450293316376,
   "start_distance_m": 731.0,
   "end_distance_m": 751.0,
   "midpoint_distance_m": 741.0,
   "start_elevation_m": 291.49134606736186,
   "end_elevation_m": 289.8418560086986,
   "start_xy": [
    430527.71102724725,
    4601685.330814425
   ],
   "end_xy": [
    430508.6139216896,
    4601679.405062337
   ]
  },
  "min_25m": {
   "gradient_pct": -7.677616368289364,
   "start_distance_m": 726.0,
   "end_distance_m": 751.0,
   "midpoint_distance_m": 738.5,
   "start_elevation_m": 291.7612601007709,
   "end_elevation_m": 289.8418560086986,
   "start_xy": [
    430532.68282718025,
    4601685.861102485
   ],
   "end_xy": [
    430508.6139216896,
    4601679.405062337
   ]
  },
  "min_50m": {
   "gradient_pct": -6.896105990467049,
   "start_distance_m": 709.0,
   "end_distance_m": 759.0,
   "midpoint_distance_m": 734.0,
   "start_elevation_m": 292.88855525898924,
   "end_elevation_m": 289.4405022637557,
   "start_xy": [
    430549.44927510386,
    4601686.521676967
   ],
   "end_xy": [
    430500.97897303017,
    4601677.016012534
   ]
  },
  "min_100m": {
   "gradient_pct": -4.425086902676753,
   "start_distance_m": 671.0,
   "end_distance_m": 771.0,
   "midpoint_distance_m": 721.0,
   "start_elevation_m": 293.8063781928049,
   "end_elevation_m": 289.38129129012816,
   "start_xy": [
    430579.9977381954,
    4601665.7819585195
   ],
   "end_xy": [
    430490.87257748045,
    4601671.119002108
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 22.145106040565565,
   "start_distance_m": 155.0,
   "end_distance_m": 157.0,
   "midpoint_distance_m": 156.0,
   "start_elevation_m": 283.67310316845146,
   "end_elevation_m": 284.1160052892628,
   "start_xy": [
    430626.782253748,
    4601237.611434254
   ],
   "end_xy": [
    430625.9177236876,
    4601239.414927469
   ]
  },
  "max_3m": {
   "gradient_pct": 21.92657212981241,
   "start_distance_m": 154.0,
   "end_distance_m": 157.0,
   "midpoint_distance_m": 155.5,
   "start_elevation_m": 283.4582081253684,
   "end_elevation_m": 284.1160052892628,
   "start_xy": [
    430627.2145187782,
    4601236.709687647
   ],
   "end_xy": [
    430625.9177236876,
    4601239.414927469
   ]
  }
 },
 "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": [
   "may_start_earlier"
  ]
 },
 "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/pa/USGS_1M_18_x43y461_PA_Northcentral_2019_B19.tif"
  ],
  "calculated_at": "2026-09-07T13:14:16+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/pennsylvania-2026-09-07-batch-band4.osm.pbf",
  "osm_snapshot": "",
  "run_id": "pa-run4-260907",
  "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, PA_Northcentral_2019_B19 (collected 2019)",
  "elevation_tile_ids": [
   "x43y461"
  ],
  "climb_origin": "discovered",
  "canopy_check": "unavailable \u2014 EPT corridor failed: PA_Northcentral_2019_B19: HTTP Error 404: Not Found",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Clinton",
  "county": "Pennsylvania"
 }
}