{
 "ocl_version": "0.1.0",
 "name": "Mill Creek Drive",
 "slug": "mill-creek-drive",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 41.030693569319965,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 381.0,
   "end_distance_m": 383.0,
   "start_elevation_m": 362.7185890606606,
   "end_elevation_m": 363.539202932047,
   "min_gradient_pct": -123.46259302781277,
   "suppressed_max_gradient_pct": 70.20745254008887,
   "suppressed_location_m": [
    103.0,
    105.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 39.69371812724489,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 371.0,
   "end_distance_m": 374.0,
   "start_elevation_m": 360.14040753025625,
   "end_elevation_m": 361.3312190740736,
   "min_gradient_pct": -108.5056830342675,
   "suppressed_max_gradient_pct": 67.15424982670584,
   "suppressed_location_m": [
    103.0,
    106.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 38.36091597937639,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 369.0,
   "end_distance_m": 374.0,
   "start_elevation_m": 359.4131732751048,
   "end_elevation_m": 361.3312190740736,
   "min_gradient_pct": -75.03572863030513,
   "suppressed_max_gradient_pct": 54.70345564595391,
   "suppressed_location_m": [
    102.0,
    107.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 35.57398190210506,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 381.0,
   "end_distance_m": 391.0,
   "start_elevation_m": 362.7185890606606,
   "end_elevation_m": 366.2759872508711,
   "min_gradient_pct": -39.200359027698255
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 32.434706314592745,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 381.0,
   "end_distance_m": 401.0,
   "start_elevation_m": 362.7185890606606,
   "end_elevation_m": 369.2055303235791,
   "min_gradient_pct": -20.927340541526007
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 31.152468203610624,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 365.0,
   "end_distance_m": 390.0,
   "start_elevation_m": 358.1931391048173,
   "end_elevation_m": 365.98125615571996,
   "min_gradient_pct": -17.00189693131415
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 28.807000073624863,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 353.0,
   "end_distance_m": 403.0,
   "start_elevation_m": 355.3839903944002,
   "end_elevation_m": 369.78749043121263,
   "min_gradient_pct": -8.616435400203386
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 23.083234924857887,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 311.0,
   "end_distance_m": 411.0,
   "start_elevation_m": 347.7458585745991,
   "end_elevation_m": 370.829093499457,
   "min_gradient_pct": -3.1287920180996025
  }
 ],
 "shape": {
  "ascent_concentration": 0.521,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 111.0,
  "shape_class": "stepped"
 },
 "length_m": 592.0310011348286,
 "start_elevation_m": 335.4152025024417,
 "end_elevation_m": 385.7366806953119,
 "endpoint_gain_m": 50.321478192870245,
 "overall_gradient_pct": 8.499804587329386,
 "accumulated_ascent_m": 56.602826282717615,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 38.36091597937639,
   "start_distance_m": 369.0,
   "end_distance_m": 374.0,
   "midpoint_distance_m": 371.5,
   "start_elevation_m": 359.4131732751048,
   "end_elevation_m": 361.3312190740736,
   "start_xy": [
    640940.74464362,
    4566052.104172156
   ],
   "end_xy": [
    640945.6815050272,
    4566052.89625766
   ]
  },
  "max_10m": {
   "gradient_pct": 35.57398190210506,
   "start_distance_m": 381.0,
   "end_distance_m": 391.0,
   "midpoint_distance_m": 386.0,
   "start_elevation_m": 362.7185890606606,
   "end_elevation_m": 366.2759872508711,
   "start_xy": [
    640952.5931109975,
    4566054.005177366
   ],
   "end_xy": [
    640962.4559774443,
    4566055.637660546
   ]
  },
  "max_20m": {
   "gradient_pct": 32.434706314592745,
   "start_distance_m": 381.0,
   "end_distance_m": 401.0,
   "midpoint_distance_m": 391.0,
   "start_elevation_m": 362.7185890606606,
   "end_elevation_m": 369.2055303235791,
   "start_xy": [
    640952.5931109975,
    4566054.005177366
   ],
   "end_xy": [
    640972.0582119463,
    4566058.429987993
   ]
  },
  "max_25m": {
   "gradient_pct": 31.152468203610624,
   "start_distance_m": 365.0,
   "end_distance_m": 390.0,
   "midpoint_distance_m": 377.5,
   "start_elevation_m": 358.1931391048173,
   "end_elevation_m": 365.98125615571996,
   "start_xy": [
    640936.7951544941,
    4566051.470503753
   ],
   "end_xy": [
    640961.4794615306,
    4566055.430931272
   ]
  },
  "max_50m": {
   "gradient_pct": 28.807000073624863,
   "start_distance_m": 353.0,
   "end_distance_m": 403.0,
   "midpoint_distance_m": 378.0,
   "start_elevation_m": 355.3839903944002,
   "end_elevation_m": 369.78749043121263,
   "start_xy": [
    640925.0250934816,
    4566050.980220298
   ],
   "end_xy": [
    640973.9786588467,
    4566058.988453482
   ]
  },
  "max_100m": {
   "gradient_pct": 23.083234924857887,
   "start_distance_m": 311.0,
   "end_distance_m": 411.0,
   "midpoint_distance_m": 361.0,
   "start_elevation_m": 347.7458585745991,
   "end_elevation_m": 370.829093499457,
   "start_xy": [
    640884.5858768441,
    4566061.126718029
   ],
   "end_xy": [
    640981.6604464483,
    4566061.22231544
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -75.03572863030513,
   "start_distance_m": 78.0,
   "end_distance_m": 83.0,
   "midpoint_distance_m": 80.5,
   "start_elevation_m": 336.4228161633002,
   "end_elevation_m": 332.6710297317849,
   "start_xy": [
    640678.2692753122,
    4566153.410836069
   ],
   "end_xy": [
    640683.1379035924,
    4566152.272214679
   ]
  },
  "min_10m": {
   "gradient_pct": -39.200359027698255,
   "start_distance_m": 74.0,
   "end_distance_m": 84.0,
   "midpoint_distance_m": 79.0,
   "start_elevation_m": 336.5500407855823,
   "end_elevation_m": 332.6300048828125,
   "start_xy": [
    640674.5551008321,
    4566154.728543699
   ],
   "end_xy": [
    640684.1118645391,
    4566152.045506097
   ]
  },
  "min_20m": {
   "gradient_pct": -20.927340541526007,
   "start_distance_m": 64.0,
   "end_distance_m": 84.0,
   "midpoint_distance_m": 74.0,
   "start_elevation_m": 336.8154729911177,
   "end_elevation_m": 332.6300048828125,
   "start_xy": [
    640666.6188064616,
    4566160.777706732
   ],
   "end_xy": [
    640684.1118645391,
    4566152.045506097
   ]
  },
  "min_25m": {
   "gradient_pct": -17.00189693131415,
   "start_distance_m": 59.0,
   "end_distance_m": 84.0,
   "midpoint_distance_m": 71.5,
   "start_elevation_m": 336.88047911564104,
   "end_elevation_m": 332.6300048828125,
   "start_xy": [
    640662.9799123752,
    4566164.199783246
   ],
   "end_xy": [
    640684.1118645391,
    4566152.045506097
   ]
  },
  "min_50m": {
   "gradient_pct": -8.616435400203386,
   "start_distance_m": 50.0,
   "end_distance_m": 100.0,
   "midpoint_distance_m": 75.0,
   "start_elevation_m": 336.9382225829142,
   "end_elevation_m": 332.6300048828125,
   "start_xy": [
    640658.6001184626,
    4566171.993737601
   ],
   "end_xy": [
    640699.410096033,
    4566147.498618256
   ]
  },
  "min_100m": {
   "gradient_pct": -3.1287920180996025,
   "start_distance_m": 2.0,
   "end_distance_m": 102.0,
   "midpoint_distance_m": 52.0,
   "start_elevation_m": 335.9311208525237,
   "end_elevation_m": 332.8023288344241,
   "start_xy": [
    640618.4458064844,
    4566193.099693787
   ],
   "end_xy": [
    640701.2757932246,
    4566146.7780809635
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 41.030693569319965,
   "start_distance_m": 381.0,
   "end_distance_m": 383.0,
   "midpoint_distance_m": 382.0,
   "start_elevation_m": 362.7185890606606,
   "end_elevation_m": 363.539202932047,
   "start_xy": [
    640952.5931109975,
    4566054.005177366
   ],
   "end_xy": [
    640954.5678555603,
    4566054.322011567
   ]
  },
  "max_3m": {
   "gradient_pct": 39.69371812724489,
   "start_distance_m": 371.0,
   "end_distance_m": 374.0,
   "midpoint_distance_m": 372.5,
   "start_elevation_m": 360.14040753025625,
   "end_elevation_m": 361.3312190740736,
   "start_xy": [
    640942.7193881829,
    4566052.421006358
   ],
   "end_xy": [
    640945.6815050272,
    4566052.89625766
   ]
  }
 },
 "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": {
  "structure_suppression": {
   "masked_fraction": 0.027,
   "windows_resited": [
    2.0,
    3.0,
    5.0
   ],
   "windows_unresolved": []
  },
  "excluded_ranges_m": [
   [
    77.0,
    84.0
   ],
   [
    101.0,
    108.0
   ]
  ],
  "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_x64y457_PA_WesternPA_2019_D20.tif"
  ],
  "calculated_at": "2026-09-07T10:38:38+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-band2.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": [
   "x64y457"
  ],
  "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": "Clarion",
  "county": "Pennsylvania"
 }
}