{
 "ocl_version": "0.1.0",
 "name": "Steckler Road",
 "slug": "steckler-road-2",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 27.48588224737034,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 173.0,
   "end_distance_m": 175.0,
   "start_elevation_m": 382.50349189579947,
   "end_elevation_m": 383.0532095407469,
   "min_gradient_pct": -4.847595045731623
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 26.704320286991862,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 173.0,
   "end_distance_m": 176.0,
   "start_elevation_m": 382.50349189579947,
   "end_elevation_m": 383.3046215044092,
   "min_gradient_pct": -4.464205047258929
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 26.40669295282919,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 174.0,
   "end_distance_m": 179.0,
   "start_elevation_m": 382.7741872115705,
   "end_elevation_m": 384.09452185921197,
   "min_gradient_pct": -3.6174042009588447
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 25.143167680632246,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 170.0,
   "end_distance_m": 180.0,
   "start_elevation_m": 381.80821847426245,
   "end_elevation_m": 384.32253524232567,
   "min_gradient_pct": -2.082207992307872
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 23.931923797205172,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 163.0,
   "end_distance_m": 183.0,
   "start_elevation_m": 380.19018345943925,
   "end_elevation_m": 384.9765682188803,
   "min_gradient_pct": -1.0519132686692956
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 23.391669046779953,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 162.0,
   "end_distance_m": 187.0,
   "start_elevation_m": 379.9614172153298,
   "end_elevation_m": 385.8093344770248,
   "min_gradient_pct": -0.3891167229794519
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.30849869799249,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 139.0,
   "end_distance_m": 189.0,
   "start_elevation_m": 376.0214479656603,
   "end_elevation_m": 386.17569731465653,
   "min_gradient_pct": 0.9882727449208915
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.666771599499384,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 116.0,
   "end_distance_m": 216.0,
   "start_elevation_m": 372.30105058044603,
   "end_elevation_m": 389.9678221799454,
   "min_gradient_pct": 1.4282110255922476
  }
 ],
 "shape": {
  "ascent_concentration": 0.575,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 126.0,
  "shape_class": "stepped"
 },
 "length_m": 1087.7757282308467,
 "start_elevation_m": 364.25217482384556,
 "end_elevation_m": 425.16893397826954,
 "endpoint_gain_m": 60.91675915442397,
 "overall_gradient_pct": 5.600121199017623,
 "accumulated_ascent_m": 61.51273660750917,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 26.40669295282919,
   "start_distance_m": 174.0,
   "end_distance_m": 179.0,
   "midpoint_distance_m": 176.5,
   "start_elevation_m": 382.7741872115705,
   "end_elevation_m": 384.09452185921197,
   "start_xy": [
    572425.8230785993,
    4579334.225144373
   ],
   "end_xy": [
    572428.3545357257,
    4579338.536956616
   ]
  },
  "max_10m": {
   "gradient_pct": 25.143167680632246,
   "start_distance_m": 170.0,
   "end_distance_m": 180.0,
   "midpoint_distance_m": 175.0,
   "start_elevation_m": 381.80821847426245,
   "end_elevation_m": 384.32253524232567,
   "start_xy": [
    572423.7979128981,
    4579330.775694579
   ],
   "end_xy": [
    572428.8608271509,
    4579339.399319065
   ]
  },
  "max_20m": {
   "gradient_pct": 23.931923797205172,
   "start_distance_m": 163.0,
   "end_distance_m": 183.0,
   "midpoint_distance_m": 173.0,
   "start_elevation_m": 380.19018345943925,
   "end_elevation_m": 384.9765682188803,
   "start_xy": [
    572420.2538729212,
    4579324.739157439
   ],
   "end_xy": [
    572430.3797014267,
    4579341.98640641
   ]
  },
  "max_25m": {
   "gradient_pct": 23.391669046779953,
   "start_distance_m": 162.0,
   "end_distance_m": 187.0,
   "midpoint_distance_m": 174.5,
   "start_elevation_m": 379.9614172153298,
   "end_elevation_m": 385.8093344770248,
   "start_xy": [
    572419.7475814959,
    4579323.87679499
   ],
   "end_xy": [
    572432.4048671279,
    4579345.4358562045
   ]
  },
  "max_50m": {
   "gradient_pct": 20.30849869799249,
   "start_distance_m": 139.0,
   "end_distance_m": 189.0,
   "midpoint_distance_m": 164.0,
   "start_elevation_m": 376.0214479656603,
   "end_elevation_m": 386.17569731465653,
   "start_xy": [
    572408.1028787146,
    4579304.042458673
   ],
   "end_xy": [
    572433.4174499784,
    4579347.160581102
   ]
  },
  "max_100m": {
   "gradient_pct": 17.666771599499384,
   "start_distance_m": 116.0,
   "end_distance_m": 216.0,
   "midpoint_distance_m": 166.0,
   "start_elevation_m": 372.30105058044603,
   "end_elevation_m": 389.9678221799454,
   "start_xy": [
    572396.4581759332,
    4579284.208122356
   ],
   "end_xy": [
    572447.0873184608,
    4579370.444367212
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -3.6174042009588447,
   "start_distance_m": 1079.0,
   "end_distance_m": 1084.0,
   "midpoint_distance_m": 1081.5,
   "start_elevation_m": 425.3466330135327,
   "end_elevation_m": 425.16576280348477,
   "start_xy": [
    572884.6962713574,
    4579996.0520230085
   ],
   "end_xy": [
    572884.8214624736,
    4580001.050455481
   ]
  },
  "min_10m": {
   "gradient_pct": -2.082207992307872,
   "start_distance_m": 1077.0,
   "end_distance_m": 1087.0,
   "midpoint_distance_m": 1082.0,
   "start_elevation_m": 425.3776902696971,
   "end_elevation_m": 425.1694694704663,
   "start_xy": [
    572884.6461949109,
    4579994.052650019
   ],
   "end_xy": [
    572884.8965771433,
    4580004.049514964
   ]
  },
  "min_20m": {
   "gradient_pct": -1.0519132686692956,
   "start_distance_m": 1067.0,
   "end_distance_m": 1087.0,
   "midpoint_distance_m": 1077.0,
   "start_elevation_m": 425.37985212420017,
   "end_elevation_m": 425.1694694704663,
   "start_xy": [
    572884.3958126784,
    4579984.055785074
   ],
   "end_xy": [
    572884.8965771433,
    4580004.049514964
   ]
  },
  "min_25m": {
   "gradient_pct": -0.3891167229794519,
   "start_distance_m": 1062.0,
   "end_distance_m": 1087.0,
   "midpoint_distance_m": 1074.5,
   "start_elevation_m": 425.2667486512112,
   "end_elevation_m": 425.1694694704663,
   "start_xy": [
    572884.2706215621,
    4579979.057352601
   ],
   "end_xy": [
    572884.8965771433,
    4580004.049514964
   ]
  },
  "min_50m": {
   "gradient_pct": 0.9882727449208915,
   "start_distance_m": 903.0,
   "end_distance_m": 953.0,
   "midpoint_distance_m": 928.0,
   "start_elevation_m": 421.90217575883753,
   "end_elevation_m": 422.396312131298,
   "start_xy": [
    572878.5675453413,
    4579820.169141919
   ],
   "end_xy": [
    572880.9101913832,
    4579870.114231863
   ]
  },
  "min_100m": {
   "gradient_pct": 1.4282110255922476,
   "start_distance_m": 898.0,
   "end_distance_m": 998.0,
   "midpoint_distance_m": 948.0,
   "start_elevation_m": 421.82063871009706,
   "end_elevation_m": 423.2488497356893,
   "start_xy": [
    572878.3332807372,
    4579815.174632925
   ],
   "end_xy": [
    572882.6681752744,
    4579915.07741695
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 27.48588224737034,
   "start_distance_m": 173.0,
   "end_distance_m": 175.0,
   "midpoint_distance_m": 174.0,
   "start_elevation_m": 382.50349189579947,
   "end_elevation_m": 383.0532095407469,
   "start_xy": [
    572425.316787174,
    4579333.362781924
   ],
   "end_xy": [
    572426.3293700245,
    4579335.087506821
   ]
  },
  "max_3m": {
   "gradient_pct": 26.704320286991862,
   "start_distance_m": 173.0,
   "end_distance_m": 176.0,
   "midpoint_distance_m": 174.5,
   "start_elevation_m": 382.50349189579947,
   "end_elevation_m": 383.3046215044092,
   "start_xy": [
    572425.316787174,
    4579333.362781924
   ],
   "end_xy": [
    572426.8356614498,
    4579335.94986927
   ]
  }
 },
 "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:26917",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/usa/pa-west/USGS_1M_17_x57y458_PA_WesternPA_2019_D20.tif",
   "data/cache/usa/pa-west/USGS_1M_17_x57y459_PA_WesternPA_2019_D20.tif"
  ],
  "calculated_at": "2026-09-07T14:29:10+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-band1.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_WesternPA_2019_D20 (collected 2020)",
  "elevation_tile_ids": [
   "x57y458",
   "x57y459"
  ],
  "climb_origin": "discovered",
  "canopy_check": "unavailable \u2014 EPT corridor failed: PA_WesternPA_2019_D20: HTTP Error 404: Not Found",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Lake",
  "county": "Pennsylvania"
 }
}