{
 "ocl_version": "0.1.0",
 "name": "Hillcrest Court",
 "slug": "hillcrest-court",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 25.60044521225109,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 907.0,
   "end_distance_m": 909.0,
   "start_elevation_m": 436.11129275628616,
   "end_elevation_m": 436.6233016605312,
   "min_gradient_pct": -2.0900538394243995
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 25.255774436592066,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 907.0,
   "end_distance_m": 910.0,
   "start_elevation_m": 436.11129275628616,
   "end_elevation_m": 436.8689659893839,
   "min_gradient_pct": -1.7379290648212493
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 24.97078018686011,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 904.0,
   "end_distance_m": 909.0,
   "start_elevation_m": 435.3747626511882,
   "end_elevation_m": 436.6233016605312,
   "min_gradient_pct": -0.759558434824612
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 24.733363160340787,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 901.0,
   "end_distance_m": 911.0,
   "start_elevation_m": 434.63826929456127,
   "end_elevation_m": 437.11160561059535,
   "min_gradient_pct": 1.233255255996255
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 24.299555017691716,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 898.0,
   "end_distance_m": 918.0,
   "start_elevation_m": 433.9281407630512,
   "end_elevation_m": 438.78805176658955,
   "min_gradient_pct": 1.4864822363657026
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 23.984399684038863,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 896.0,
   "end_distance_m": 921.0,
   "start_elevation_m": 433.4712135618545,
   "end_elevation_m": 439.4673134828642,
   "min_gradient_pct": 1.6684540893963913
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.6352096311349,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 884.0,
   "end_distance_m": 934.0,
   "start_elevation_m": 431.4766613942944,
   "end_elevation_m": 441.29426620986186,
   "min_gradient_pct": 2.9780291952903326
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.140738253461507,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 826.0,
   "end_distance_m": 926.0,
   "start_elevation_m": 423.2109413244849,
   "end_elevation_m": 440.3516795779464,
   "min_gradient_pct": 4.234900330064477
  }
 ],
 "shape": {
  "ascent_concentration": 0.391,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 100.0,
  "shape_class": "sustained"
 },
 "length_m": 980.9999999995736,
 "start_elevation_m": 362.7031309648431,
 "end_elevation_m": 443.2019564346805,
 "endpoint_gain_m": 80.49882546983736,
 "overall_gradient_pct": 8.205792606510943,
 "accumulated_ascent_m": 80.62068929196005,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 24.97078018686011,
   "start_distance_m": 904.0,
   "end_distance_m": 909.0,
   "midpoint_distance_m": 906.5,
   "start_elevation_m": 435.3747626511882,
   "end_elevation_m": 436.6233016605312,
   "start_xy": [
    676719.5530961934,
    4462844.073321885
   ],
   "end_xy": [
    676720.8120708368,
    4462848.912224484
   ]
  },
  "max_10m": {
   "gradient_pct": 24.733363160340787,
   "start_distance_m": 901.0,
   "end_distance_m": 911.0,
   "midpoint_distance_m": 906.0,
   "start_elevation_m": 434.63826929456127,
   "end_elevation_m": 437.11160561059535,
   "start_xy": [
    676718.7979884852,
    4462841.169908149
   ],
   "end_xy": [
    676721.3161759982,
    4462850.847651549
   ]
  },
  "max_20m": {
   "gradient_pct": 24.299555017691716,
   "start_distance_m": 898.0,
   "end_distance_m": 918.0,
   "midpoint_distance_m": 908.0,
   "start_elevation_m": 433.9281407630512,
   "end_elevation_m": 438.78805176658955,
   "start_xy": [
    676718.0421823618,
    4462838.266675968
   ],
   "end_xy": [
    676723.0790232728,
    4462857.622041778
   ]
  },
  "max_25m": {
   "gradient_pct": 23.984399684038863,
   "start_distance_m": 896.0,
   "end_distance_m": 921.0,
   "midpoint_distance_m": 908.5,
   "start_elevation_m": 433.4712135618545,
   "end_elevation_m": 439.4673134828642,
   "start_xy": [
    676717.5390138417,
    4462836.331005551
   ],
   "end_xy": [
    676723.8341309809,
    4462860.525455514
   ]
  },
  "max_50m": {
   "gradient_pct": 19.6352096311349,
   "start_distance_m": 884.0,
   "end_distance_m": 934.0,
   "midpoint_distance_m": 909.0,
   "start_elevation_m": 431.4766613942944,
   "end_elevation_m": 441.29426620986186,
   "start_xy": [
    676714.5169536974,
    4462824.717774521
   ],
   "end_xy": [
    676727.1081245622,
    4462873.106430857
   ]
  },
  "max_100m": {
   "gradient_pct": 17.140738253461507,
   "start_distance_m": 826.0,
   "end_distance_m": 926.0,
   "midpoint_distance_m": 876.0,
   "start_elevation_m": 423.2109413244849,
   "end_elevation_m": 440.3516795779464,
   "start_xy": [
    676699.9100711081,
    4462768.587225527
   ],
   "end_xy": [
    676725.0931275385,
    4462865.364352419
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -0.759558434824612,
   "start_distance_m": 0.0,
   "end_distance_m": 5.0,
   "midpoint_distance_m": 2.5,
   "start_elevation_m": 362.7031309648431,
   "end_elevation_m": 362.6651530431019,
   "start_xy": [
    676928.228,
    4462123.956
   ],
   "end_xy": [
    676925.4174620868,
    4462119.820679975
   ]
  },
  "min_10m": {
   "gradient_pct": 1.233255255996255,
   "start_distance_m": 971.0,
   "end_distance_m": 981.0,
   "midpoint_distance_m": 976.0,
   "start_elevation_m": 443.07863090908086,
   "end_elevation_m": 443.2019564346805,
   "start_xy": [
    676736.4829354745,
    4462908.899002369
   ],
   "end_xy": [
    676739.0388699017,
    4462918.566844511
   ]
  },
  "min_20m": {
   "gradient_pct": 1.4864822363657026,
   "start_distance_m": 961.0,
   "end_distance_m": 981.0,
   "midpoint_distance_m": 971.0,
   "start_elevation_m": 442.90465998740734,
   "end_elevation_m": 443.2019564346805,
   "start_xy": [
    676733.9279134618,
    4462899.230918892
   ],
   "end_xy": [
    676739.0388699017,
    4462918.566844511
   ]
  },
  "min_25m": {
   "gradient_pct": 1.6684540893963913,
   "start_distance_m": 956.0,
   "end_distance_m": 981.0,
   "midpoint_distance_m": 968.5,
   "start_elevation_m": 442.7848429123314,
   "end_elevation_m": 443.2019564346805,
   "start_xy": [
    676732.6508982438,
    4462894.396746063
   ],
   "end_xy": [
    676739.0388699017,
    4462918.566844511
   ]
  },
  "min_50m": {
   "gradient_pct": 2.9780291952903326,
   "start_distance_m": 470.0,
   "end_distance_m": 520.0,
   "midpoint_distance_m": 495.0,
   "start_elevation_m": 400.469876086249,
   "end_elevation_m": 401.95889068389414,
   "start_xy": [
    676766.9215866773,
    4462470.637015453
   ],
   "end_xy": [
    676753.8534432746,
    4462518.897285654
   ]
  },
  "min_100m": {
   "gradient_pct": 4.234900330064477,
   "start_distance_m": 474.0,
   "end_distance_m": 574.0,
   "midpoint_distance_m": 524.0,
   "start_elevation_m": 400.63093878861457,
   "end_elevation_m": 404.86583911867905,
   "start_xy": [
    676765.9120260768,
    4462474.507131556
   ],
   "end_xy": [
    676730.3696665241,
    4462566.610307692
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 25.60044521225109,
   "start_distance_m": 907.0,
   "end_distance_m": 909.0,
   "midpoint_distance_m": 908.0,
   "start_elevation_m": 436.11129275628616,
   "end_elevation_m": 436.6233016605312,
   "start_xy": [
    676720.3091348133,
    4462846.9764935095
   ],
   "end_xy": [
    676720.8120708368,
    4462848.912224484
   ]
  },
  "max_3m": {
   "gradient_pct": 25.255774436592066,
   "start_distance_m": 907.0,
   "end_distance_m": 910.0,
   "midpoint_distance_m": 908.5,
   "start_elevation_m": 436.11129275628616,
   "end_elevation_m": 436.8689659893839,
   "start_xy": [
    676720.3091348133,
    4462846.9764935095
   ],
   "end_xy": [
    676721.0640043351,
    4462849.879969033
   ]
  }
 },
 "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:26917",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/usa/pa-west/USGS_1M_17_x67y447_PA_WesternPA_2019_D20.tif"
  ],
  "calculated_at": "2026-09-15T03:27:33+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/pennsylvania-2026-09-07.osm.pbf",
  "osm_snapshot": "2026-09-06T20:21:35Z",
  "run_id": "retro-260914",
  "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": [
   "x67y447"
  ],
  "route_cut_m": 981.0,
  "climb_origin": "discovered",
  "canopy_check": "unavailable \u2014 EPT corridor failed: PA_WesternPA_2019_D20: HTTP Error 404: Not Found",
  "structure_own_ways": "none \u2014 the route carried no way list; own decks unmasked",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Ferndale",
  "county": "Pennsylvania"
 }
}