{
 "ocl_version": "0.1.0",
 "name": "Dague Hollow Road",
 "slug": "dague-hollow-road",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 26.46887739879844,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 511.0,
   "end_distance_m": 513.0,
   "start_elevation_m": 359.8558574094354,
   "end_elevation_m": 360.38523495741134,
   "min_gradient_pct": -19.72559920848198
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 26.060287235388085,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 518.0,
   "end_distance_m": 521.0,
   "start_elevation_m": 361.0165750257494,
   "end_elevation_m": 361.798383642811,
   "min_gradient_pct": -19.31259046235141
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 24.27307901428776,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 518.0,
   "end_distance_m": 523.0,
   "start_elevation_m": 361.0165750257494,
   "end_elevation_m": 362.23022897646376,
   "min_gradient_pct": -18.679247161286412
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 22.51893604628549,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 470.0,
   "end_distance_m": 480.0,
   "start_elevation_m": 351.5142705254883,
   "end_elevation_m": 353.76616413011686,
   "min_gradient_pct": -17.722403204863326
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 22.151165364211067,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 460.0,
   "end_distance_m": 480.0,
   "start_elevation_m": 349.33593105727465,
   "end_elevation_m": 353.76616413011686,
   "min_gradient_pct": -16.55572622623339
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.72308433925923,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 454.0,
   "end_distance_m": 479.0,
   "start_elevation_m": 348.11981902400333,
   "end_elevation_m": 353.55059010881814,
   "min_gradient_pct": -15.931205886184898
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.866741958218427,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 429.0,
   "end_distance_m": 479.0,
   "start_elevation_m": 343.11721912970893,
   "end_elevation_m": 353.55059010881814,
   "min_gradient_pct": -15.008799931902672
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 20.30438317840185,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 413.0,
   "end_distance_m": 513.0,
   "start_elevation_m": 340.0808517790095,
   "end_elevation_m": 360.38523495741134,
   "min_gradient_pct": -13.274729829977332
  }
 ],
 "shape": {
  "ascent_concentration": 0.468,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 287.0,
  "shape_class": "stepped"
 },
 "length_m": 2084.999999999922,
 "start_elevation_m": 316.4812018608833,
 "end_elevation_m": 415.6343920321111,
 "endpoint_gain_m": 99.15319017122783,
 "overall_gradient_pct": 4.755548689267701,
 "accumulated_ascent_m": 148.66898071626287,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 24.27307901428776,
   "start_distance_m": 518.0,
   "end_distance_m": 523.0,
   "midpoint_distance_m": 520.5,
   "start_elevation_m": 361.0165750257494,
   "end_elevation_m": 362.23022897646376,
   "start_xy": [
    577081.9551253682,
    4441528.714531784
   ],
   "end_xy": [
    577077.5024523035,
    4441526.439954334
   ]
  },
  "max_10m": {
   "gradient_pct": 22.51893604628549,
   "start_distance_m": 470.0,
   "end_distance_m": 480.0,
   "midpoint_distance_m": 475.0,
   "start_elevation_m": 351.5142705254883,
   "end_elevation_m": 353.76616413011686,
   "start_xy": [
    577109.8786596865,
    4441560.194213716
   ],
   "end_xy": [
    577109.8256076006,
    4441550.194354444
   ]
  },
  "max_20m": {
   "gradient_pct": 22.151165364211067,
   "start_distance_m": 460.0,
   "end_distance_m": 480.0,
   "midpoint_distance_m": 470.0,
   "start_elevation_m": 349.33593105727465,
   "end_elevation_m": 353.76616413011686,
   "start_xy": [
    577109.9317117726,
    4441570.19407299
   ],
   "end_xy": [
    577109.8256076006,
    4441550.194354444
   ]
  },
  "max_25m": {
   "gradient_pct": 21.72308433925923,
   "start_distance_m": 454.0,
   "end_distance_m": 479.0,
   "midpoint_distance_m": 466.5,
   "start_elevation_m": 348.11981902400333,
   "end_elevation_m": 353.55059010881814,
   "start_xy": [
    577109.9635430241,
    4441576.193988553
   ],
   "end_xy": [
    577109.8309128092,
    4441551.1943403715
   ]
  },
  "max_50m": {
   "gradient_pct": 20.866741958218427,
   "start_distance_m": 429.0,
   "end_distance_m": 479.0,
   "midpoint_distance_m": 454.0,
   "start_elevation_m": 343.11721912970893,
   "end_elevation_m": 353.55059010881814,
   "start_xy": [
    577110.1075231531,
    4441601.1934192255
   ],
   "end_xy": [
    577109.8309128092,
    4441551.1943403715
   ]
  },
  "max_100m": {
   "gradient_pct": 20.30438317840185,
   "start_distance_m": 413.0,
   "end_distance_m": 513.0,
   "midpoint_distance_m": 463.0,
   "start_elevation_m": 340.0808517790095,
   "end_elevation_m": 360.38523495741134,
   "start_xy": [
    577110.6357165145,
    4441617.184698467
   ],
   "end_xy": [
    577086.4077984327,
    4441530.989109235
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -18.679247161286412,
   "start_distance_m": 1146.0,
   "end_distance_m": 1151.0,
   "midpoint_distance_m": 1148.5,
   "start_elevation_m": 342.4601696151411,
   "end_elevation_m": 341.5262072570768,
   "start_xy": [
    576647.0889760794,
    4441107.29121903
   ],
   "end_xy": [
    576644.6891387331,
    4441102.904787597
   ]
  },
  "min_10m": {
   "gradient_pct": -17.722403204863326,
   "start_distance_m": 1141.0,
   "end_distance_m": 1151.0,
   "midpoint_distance_m": 1146.0,
   "start_elevation_m": 343.29844757756314,
   "end_elevation_m": 341.5262072570768,
   "start_xy": [
    576649.4888134258,
    4441111.677650462
   ],
   "end_xy": [
    576644.6891387331,
    4441102.904787597
   ]
  },
  "min_20m": {
   "gradient_pct": -16.55572622623339,
   "start_distance_m": 1132.0,
   "end_distance_m": 1152.0,
   "midpoint_distance_m": 1142.0,
   "start_elevation_m": 344.68731389747484,
   "end_elevation_m": 341.37616865222816,
   "start_xy": [
    576653.8085206492,
    4441119.5732270405
   ],
   "end_xy": [
    576644.2091712637,
    4441102.02750131
   ]
  },
  "min_25m": {
   "gradient_pct": -15.931205886184898,
   "start_distance_m": 1128.0,
   "end_distance_m": 1153.0,
   "midpoint_distance_m": 1140.5,
   "start_elevation_m": 345.22779272018306,
   "end_elevation_m": 341.24499124863684,
   "start_xy": [
    576655.7283905263,
    4441123.082372186
   ],
   "end_xy": [
    576643.7292037945,
    4441101.150215024
   ]
  },
  "min_50m": {
   "gradient_pct": -15.008799931902672,
   "start_distance_m": 703.0,
   "end_distance_m": 753.0,
   "midpoint_distance_m": 728.0,
   "start_elevation_m": 370.38151590978083,
   "end_elevation_m": 362.8771159438295,
   "start_xy": [
    576922.0260959315,
    4441438.948598381
   ],
   "end_xy": [
    576876.6540710094,
    4441418.23765675
   ]
  },
  "min_100m": {
   "gradient_pct": -13.274729829977332,
   "start_distance_m": 698.0,
   "end_distance_m": 798.0,
   "midpoint_distance_m": 748.0,
   "start_elevation_m": 371.0042737605628,
   "end_elevation_m": 357.72954393058546,
   "start_xy": [
    576926.6261371505,
    4441440.908093414
   ],
   "end_xy": [
    576840.1070453859,
    4441391.982849227
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 26.46887739879844,
   "start_distance_m": 511.0,
   "end_distance_m": 513.0,
   "midpoint_distance_m": 512.0,
   "start_elevation_m": 359.8558574094354,
   "end_elevation_m": 360.38523495741134,
   "start_xy": [
    577088.1888676586,
    4441531.898940216
   ],
   "end_xy": [
    577086.4077984327,
    4441530.989109235
   ]
  },
  "max_3m": {
   "gradient_pct": 26.060287235388085,
   "start_distance_m": 518.0,
   "end_distance_m": 521.0,
   "midpoint_distance_m": 519.5,
   "start_elevation_m": 361.0165750257494,
   "end_elevation_m": 361.798383642811,
   "start_xy": [
    577081.9551253682,
    4441528.714531784
   ],
   "end_xy": [
    577079.2835215294,
    4441527.349785314
   ]
  }
 },
 "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_continue_beyond_end"
  ]
 },
 "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_x57y445_PA_WesternPA_2019_D20.tif"
  ],
  "calculated_at": "2026-09-07T15:44:32+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": [
   "x57y445"
  ],
  "route_summit_trim_m": 71.0,
  "route_summit_trim_loss_m": 10.7,
  "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": "North Bethlehem",
  "county": "Pennsylvania"
 }
}