{
 "ocl_version": "0.1.0",
 "name": "Eden Hollow Lane",
 "slug": "eden-hollow-lane",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 22.000649815078077,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 566.0,
   "end_distance_m": 568.0,
   "start_elevation_m": 363.6522785407477,
   "end_elevation_m": 364.0922915370493,
   "min_gradient_pct": -10.295681922684707
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 21.3762957640616,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 557.0,
   "end_distance_m": 560.0,
   "start_elevation_m": 361.80010720475576,
   "end_elevation_m": 362.4413960776776,
   "min_gradient_pct": -10.029745577831287
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 21.427398707032808,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 555.0,
   "end_distance_m": 560.0,
   "start_elevation_m": 361.37002614232597,
   "end_elevation_m": 362.4413960776776,
   "min_gradient_pct": -9.9288063595111
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 20.922197052742604,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 555.0,
   "end_distance_m": 565.0,
   "start_elevation_m": 361.37002614232597,
   "end_elevation_m": 363.46224584760023,
   "min_gradient_pct": -8.691937361649025
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.56595546358949,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 548.0,
   "end_distance_m": 568.0,
   "start_elevation_m": 359.9791004443314,
   "end_elevation_m": 364.0922915370493,
   "min_gradient_pct": -6.2425504750902405
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.41483532931352,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 543.0,
   "end_distance_m": 568.0,
   "start_elevation_m": 358.9885827047209,
   "end_elevation_m": 364.0922915370493,
   "min_gradient_pct": -4.932216953177431
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.73343959448971,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 534.0,
   "end_distance_m": 584.0,
   "start_elevation_m": 357.2811654033775,
   "end_elevation_m": 367.14788520062234,
   "min_gradient_pct": -2.284254689524687
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 18.27505948773029,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 490.0,
   "end_distance_m": 590.0,
   "start_elevation_m": 349.9319417176717,
   "end_elevation_m": 368.207001205402,
   "min_gradient_pct": 0.7078962526509258
  }
 ],
 "shape": {
  "ascent_concentration": 0.539,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 226.0,
  "shape_class": "stepped"
 },
 "length_m": 657.8122486335067,
 "start_elevation_m": 326.781090345763,
 "end_elevation_m": 374.9243376811505,
 "endpoint_gain_m": 48.143247335387514,
 "overall_gradient_pct": 7.318691227686463,
 "accumulated_ascent_m": 49.468056026368686,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 21.427398707032808,
   "start_distance_m": 555.0,
   "end_distance_m": 560.0,
   "midpoint_distance_m": 557.5,
   "start_elevation_m": 361.37002614232597,
   "end_elevation_m": 362.4413960776776,
   "start_xy": [
    615935.6072282321,
    4463049.415728394
   ],
   "end_xy": [
    615935.9237480948,
    4463044.425756933
   ]
  },
  "max_10m": {
   "gradient_pct": 20.922197052742604,
   "start_distance_m": 555.0,
   "end_distance_m": 565.0,
   "midpoint_distance_m": 560.0,
   "start_elevation_m": 361.37002614232597,
   "end_elevation_m": 363.46224584760023,
   "start_xy": [
    615935.6072282321,
    4463049.415728394
   ],
   "end_xy": [
    615936.2402679576,
    4463039.435785473
   ]
  },
  "max_20m": {
   "gradient_pct": 20.56595546358949,
   "start_distance_m": 548.0,
   "end_distance_m": 568.0,
   "midpoint_distance_m": 558.0,
   "start_elevation_m": 359.9791004443314,
   "end_elevation_m": 364.0922915370493,
   "start_xy": [
    615935.1641004243,
    4463056.401688439
   ],
   "end_xy": [
    615936.4301798751,
    4463036.441802597
   ]
  },
  "max_25m": {
   "gradient_pct": 20.41483532931352,
   "start_distance_m": 543.0,
   "end_distance_m": 568.0,
   "midpoint_distance_m": 555.5,
   "start_elevation_m": 358.9885827047209,
   "end_elevation_m": 364.0922915370493,
   "start_xy": [
    615934.8475805615,
    4463061.3916599
   ],
   "end_xy": [
    615936.4301798751,
    4463036.441802597
   ]
  },
  "max_50m": {
   "gradient_pct": 19.73343959448971,
   "start_distance_m": 534.0,
   "end_distance_m": 584.0,
   "midpoint_distance_m": 559.0,
   "start_elevation_m": 357.2811654033775,
   "end_elevation_m": 367.14788520062234,
   "start_xy": [
    615934.2778448085,
    4463070.373608528
   ],
   "end_xy": [
    615937.4430434359,
    4463020.473893923
   ]
  },
  "max_100m": {
   "gradient_pct": 18.27505948773029,
   "start_distance_m": 490.0,
   "end_distance_m": 590.0,
   "midpoint_distance_m": 540.0,
   "start_elevation_m": 349.9319417176717,
   "end_elevation_m": 368.207001205402,
   "start_xy": [
    615931.4924700165,
    4463114.28535738
   ],
   "end_xy": [
    615939.2232738783,
    4463014.829491506
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -9.9288063595111,
   "start_distance_m": 13.0,
   "end_distance_m": 18.0,
   "midpoint_distance_m": 15.5,
   "start_elevation_m": 326.4929891340944,
   "end_elevation_m": 325.99654881611883,
   "start_xy": [
    616206.8230657965,
    4463490.513762826
   ],
   "end_xy": [
    616205.1533330773,
    4463486.025330035
   ]
  },
  "min_10m": {
   "gradient_pct": -8.691937361649025,
   "start_distance_m": 10.0,
   "end_distance_m": 20.0,
   "midpoint_distance_m": 15.0,
   "start_elevation_m": 326.72919352404386,
   "end_elevation_m": 325.85999978787896,
   "start_xy": [
    616206.6038198435,
    4463493.505740635
   ],
   "end_xy": [
    616204.1023397251,
    4463484.323738729
   ]
  },
  "min_20m": {
   "gradient_pct": -6.2425504750902405,
   "start_distance_m": 4.0,
   "end_distance_m": 24.0,
   "midpoint_distance_m": 14.0,
   "start_elevation_m": 326.9710895721348,
   "end_elevation_m": 325.72257947711677,
   "start_xy": [
    616206.1653279375,
    4463499.489696254
   ],
   "end_xy": [
    616202.0003530208,
    4463480.920556116
   ]
  },
  "min_25m": {
   "gradient_pct": -4.932216953177431,
   "start_distance_m": 4.0,
   "end_distance_m": 29.0,
   "midpoint_distance_m": 16.5,
   "start_elevation_m": 326.9710895721348,
   "end_elevation_m": 325.73803533384046,
   "start_xy": [
    616206.1653279375,
    4463499.489696254
   ],
   "end_xy": [
    616199.3728696404,
    4463476.6665778505
   ]
  },
  "min_50m": {
   "gradient_pct": -2.284254689524687,
   "start_distance_m": 4.0,
   "end_distance_m": 54.0,
   "midpoint_distance_m": 29.0,
   "start_elevation_m": 326.9710895721348,
   "end_elevation_m": 325.8289622273725,
   "start_xy": [
    616206.1653279375,
    4463499.489696254
   ],
   "end_xy": [
    616183.4240920991,
    4463457.570729985
   ]
  },
  "min_100m": {
   "gradient_pct": 0.7078962526509258,
   "start_distance_m": 0.0,
   "end_distance_m": 100.0,
   "midpoint_distance_m": 50.0,
   "start_elevation_m": 326.781090345763,
   "end_elevation_m": 327.48898659841393,
   "start_xy": [
    616205.873,
    4463503.479
   ],
   "end_xy": [
    616151.7002071782,
    4463424.26130648
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 22.000649815078077,
   "start_distance_m": 566.0,
   "end_distance_m": 568.0,
   "midpoint_distance_m": 567.0,
   "start_elevation_m": 363.6522785407477,
   "end_elevation_m": 364.0922915370493,
   "start_xy": [
    615936.30357193,
    4463038.437791181
   ],
   "end_xy": [
    615936.4301798751,
    4463036.441802597
   ]
  },
  "max_3m": {
   "gradient_pct": 21.3762957640616,
   "start_distance_m": 557.0,
   "end_distance_m": 560.0,
   "midpoint_distance_m": 558.5,
   "start_elevation_m": 361.80010720475576,
   "end_elevation_m": 362.4413960776776,
   "start_xy": [
    615935.7338361772,
    4463047.41973981
   ],
   "end_xy": [
    615935.9237480948,
    4463044.425756933
   ]
  }
 },
 "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": [
   "descends_at_start",
   "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_x61y447_PA_WesternPA_2019_D20.tif"
  ],
  "calculated_at": "2026-09-07T11:35:56+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": [
   "x61y447"
  ],
  "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": "Hempfield",
  "county": "Pennsylvania"
 }
}