{
 "ocl_version": "0.1.0",
 "name": "Cherry Lane",
 "slug": "cherry-lane-3",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 35.14140359575606,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 0.0,
   "end_distance_m": 2.0,
   "start_elevation_m": 289.6242987788596,
   "end_elevation_m": 290.32712685077473,
   "min_gradient_pct": -2.394191360866671
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 32.630967517566965,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 0.0,
   "end_distance_m": 3.0,
   "start_elevation_m": 289.6242987788596,
   "end_elevation_m": 290.6032278043866,
   "min_gradient_pct": 1.092630619338782
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 26.888090172054717,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 0.0,
   "end_distance_m": 5.0,
   "start_elevation_m": 289.6242987788596,
   "end_elevation_m": 290.96870328746235,
   "min_gradient_pct": 2.5344992770658337
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 22.952992274329063,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 189.0,
   "end_distance_m": 199.0,
   "start_elevation_m": 311.6164243704418,
   "end_elevation_m": 313.9117235978747,
   "min_gradient_pct": 3.864676371489395
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 22.54631828923607,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 185.0,
   "end_distance_m": 205.0,
   "start_elevation_m": 310.73335284006055,
   "end_elevation_m": 315.24261649790776,
   "min_gradient_pct": 6.158672404931451
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 22.07871502208104,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 182.0,
   "end_distance_m": 207.0,
   "start_elevation_m": 310.11774177670947,
   "end_elevation_m": 315.6374205322297,
   "min_gradient_pct": 7.337802174997023
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.116177163690963,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 166.0,
   "end_distance_m": 216.0,
   "start_elevation_m": 307.58562641219464,
   "end_elevation_m": 317.1437149940401,
   "min_gradient_pct": 9.199288307983124
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 15.33078802021987,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 116.0,
   "end_distance_m": 216.0,
   "start_elevation_m": 301.81292697382025,
   "end_elevation_m": 317.1437149940401,
   "min_gradient_pct": 9.425548999276202
  }
 ],
 "shape": {
  "ascent_concentration": 0.371,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 87.0,
  "shape_class": "sustained"
 },
 "length_m": 221.24198283381406,
 "start_elevation_m": 289.6242987788596,
 "end_elevation_m": 317.62843118666217,
 "endpoint_gain_m": 28.004132407802558,
 "overall_gradient_pct": 12.657693647971806,
 "accumulated_ascent_m": 28.055022506096122,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 26.888090172054717,
   "start_distance_m": 0.0,
   "end_distance_m": 5.0,
   "midpoint_distance_m": 2.5,
   "start_elevation_m": 289.6242987788596,
   "end_elevation_m": 290.96870328746235,
   "start_xy": [
    584993.746,
    4441545.439
   ],
   "end_xy": [
    584995.6688116967,
    4441540.823504883
   ]
  },
  "max_10m": {
   "gradient_pct": 22.952992274329063,
   "start_distance_m": 189.0,
   "end_distance_m": 199.0,
   "midpoint_distance_m": 194.0,
   "start_elevation_m": 311.6164243704418,
   "end_elevation_m": 313.9117235978747,
   "start_xy": [
    585150.9662022174,
    4441596.007328772
   ],
   "end_xy": [
    585159.9324653894,
    4441600.43520916
   ]
  },
  "max_20m": {
   "gradient_pct": 22.54631828923607,
   "start_distance_m": 185.0,
   "end_distance_m": 205.0,
   "midpoint_distance_m": 195.0,
   "start_elevation_m": 310.73335284006055,
   "end_elevation_m": 315.24261649790776,
   "start_xy": [
    585147.3796969486,
    4441594.2361766165
   ],
   "end_xy": [
    585165.481336264,
    4441602.651528123
   ]
  },
  "max_25m": {
   "gradient_pct": 22.07871502208104,
   "start_distance_m": 182.0,
   "end_distance_m": 207.0,
   "midpoint_distance_m": 194.5,
   "start_elevation_m": 310.11774177670947,
   "end_elevation_m": 315.6374205322297,
   "start_xy": [
    585144.6898179969,
    4441592.9078125
   ],
   "end_xy": [
    585167.4064292648,
    4441603.193761411
   ]
  },
  "max_50m": {
   "gradient_pct": 19.116177163690963,
   "start_distance_m": 166.0,
   "end_distance_m": 216.0,
   "midpoint_distance_m": 191.0,
   "start_elevation_m": 307.58562641219464,
   "end_elevation_m": 317.1437149940401,
   "start_xy": [
    585130.3437969217,
    4441585.823203879
   ],
   "end_xy": [
    585176.0693477682,
    4441605.633811207
   ]
  },
  "max_100m": {
   "gradient_pct": 15.33078802021987,
   "start_distance_m": 116.0,
   "end_distance_m": 216.0,
   "midpoint_distance_m": 166.0,
   "start_elevation_m": 301.81292697382025,
   "end_elevation_m": 317.1437149940401,
   "start_xy": [
    585085.3186699247,
    4441564.082842249
   ],
   "end_xy": [
    585176.0693477682,
    4441605.633811207
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 2.5344992770658337,
   "start_distance_m": 11.0,
   "end_distance_m": 16.0,
   "midpoint_distance_m": 13.5,
   "start_elevation_m": 291.37085865239743,
   "end_elevation_m": 291.4975836162507,
   "start_xy": [
    584997.9761857326,
    4441535.284910742
   ],
   "end_xy": [
    584999.8989974293,
    4441530.669415625
   ]
  },
  "min_10m": {
   "gradient_pct": 3.864676371489395,
   "start_distance_m": 7.0,
   "end_distance_m": 17.0,
   "midpoint_distance_m": 12.0,
   "start_elevation_m": 291.14945213312546,
   "end_elevation_m": 291.5359197702744,
   "start_xy": [
    584996.4379363754,
    4441538.977306835
   ],
   "end_xy": [
    585000.2835597687,
    4441529.746316601
   ]
  },
  "min_20m": {
   "gradient_pct": 6.158672404931451,
   "start_distance_m": 4.0,
   "end_distance_m": 24.0,
   "midpoint_distance_m": 14.0,
   "start_elevation_m": 290.8132078618381,
   "end_elevation_m": 292.0449423428244,
   "start_xy": [
    584995.2842493574,
    4441541.746603906
   ],
   "end_xy": [
    585002.975496144,
    4441523.284623437
   ]
  },
  "min_25m": {
   "gradient_pct": 7.337802174997023,
   "start_distance_m": 5.0,
   "end_distance_m": 30.0,
   "midpoint_distance_m": 17.5,
   "start_elevation_m": 290.96870328746235,
   "end_elevation_m": 292.8031538312116,
   "start_xy": [
    584995.6688116967,
    4441540.823504883
   ],
   "end_xy": [
    585008.2903677289,
    4441525.84440762
   ]
  },
  "min_50m": {
   "gradient_pct": 9.199288307983124,
   "start_distance_m": 5.0,
   "end_distance_m": 55.0,
   "midpoint_distance_m": 30.0,
   "start_elevation_m": 290.96870328746235,
   "end_elevation_m": 295.5683474414539,
   "start_xy": [
    584995.6688116967,
    4441540.823504883
   ],
   "end_xy": [
    585030.6371035704,
    4441537.0525920065
   ]
  },
  "min_100m": {
   "gradient_pct": 9.425548999276202,
   "start_distance_m": 5.0,
   "end_distance_m": 105.0,
   "midpoint_distance_m": 55.0,
   "start_elevation_m": 290.96870328746235,
   "end_elevation_m": 300.39425228673855,
   "start_xy": [
    584995.6688116967,
    4441540.823504883
   ],
   "end_xy": [
    585075.3926423659,
    4441559.3421696285
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 35.14140359575606,
   "start_distance_m": 0.0,
   "end_distance_m": 2.0,
   "midpoint_distance_m": 1.0,
   "start_elevation_m": 289.6242987788596,
   "end_elevation_m": 290.32712685077473,
   "start_xy": [
    584993.746,
    4441545.439
   ],
   "end_xy": [
    584994.5151246787,
    4441543.592801954
   ]
  },
  "max_3m": {
   "gradient_pct": 32.630967517566965,
   "start_distance_m": 0.0,
   "end_distance_m": 3.0,
   "midpoint_distance_m": 1.5,
   "start_elevation_m": 289.6242987788596,
   "end_elevation_m": 290.6032278043866,
   "start_xy": [
    584993.746,
    4441545.439
   ],
   "end_xy": [
    584994.899687018,
    4441542.669702929
   ]
  }
 },
 "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",
   "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_x58y445_PA_WesternPA_2019_D20.tif"
  ],
  "calculated_at": "2026-09-07T15:16:54+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": [
   "x58y445"
  ],
  "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": "Bentleyville",
  "county": "Pennsylvania"
 }
}