{
 "ocl_version": "0.1.0",
 "name": "Leewood Lane",
 "slug": "leewood-lane",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 23.434908833237955,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 389.0,
   "end_distance_m": 391.0,
   "start_elevation_m": 251.2116338940283,
   "end_elevation_m": 251.68033207069305,
   "min_gradient_pct": -4.915645062743579
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 22.678100187382217,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 381.0,
   "end_distance_m": 384.0,
   "start_elevation_m": 249.48684468240873,
   "end_elevation_m": 250.1671876880302,
   "min_gradient_pct": -4.64904112439702
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 22.206420482129374,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 381.0,
   "end_distance_m": 386.0,
   "start_elevation_m": 249.48684468240873,
   "end_elevation_m": 250.5971657065152,
   "min_gradient_pct": -3.6974849636521867
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 21.93487388284325,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 381.0,
   "end_distance_m": 391.0,
   "start_elevation_m": 249.48684468240873,
   "end_elevation_m": 251.68033207069305,
   "min_gradient_pct": -3.5635444903982716
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.589800286246543,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 373.0,
   "end_distance_m": 393.0,
   "start_elevation_m": 247.784034681273,
   "end_elevation_m": 252.1019947385223,
   "min_gradient_pct": -2.948591010939623
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.407995529466234,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 366.0,
   "end_distance_m": 391.0,
   "start_elevation_m": 246.3283331883265,
   "end_elevation_m": 251.68033207069305,
   "min_gradient_pct": -2.5917217120754685
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.520503880458083,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 357.0,
   "end_distance_m": 407.0,
   "start_elevation_m": 244.5287997176433,
   "end_elevation_m": 254.78905165787233,
   "min_gradient_pct": -0.8696147409104924
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 18.6144971048721,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 322.0,
   "end_distance_m": 422.0,
   "start_elevation_m": 238.73718023771283,
   "end_elevation_m": 257.35167734258494,
   "min_gradient_pct": 3.295502956980698
  }
 ],
 "shape": {
  "ascent_concentration": 0.419,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 189.0,
  "shape_class": "sustained"
 },
 "length_m": 487.26222944652557,
 "start_elevation_m": 214.21506742297655,
 "end_elevation_m": 265.66137351859896,
 "endpoint_gain_m": 51.44630609562242,
 "overall_gradient_pct": 10.558238046494917,
 "accumulated_ascent_m": 52.258723192551884,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 22.206420482129374,
   "start_distance_m": 381.0,
   "end_distance_m": 386.0,
   "midpoint_distance_m": 383.5,
   "start_elevation_m": 249.48684468240873,
   "end_elevation_m": 250.5971657065152,
   "start_xy": [
    363674.6428877123,
    4432514.325640216
   ],
   "end_xy": [
    363671.8603751398,
    4432510.1714105895
   ]
  },
  "max_10m": {
   "gradient_pct": 21.93487388284325,
   "start_distance_m": 381.0,
   "end_distance_m": 391.0,
   "midpoint_distance_m": 386.0,
   "start_elevation_m": 249.48684468240873,
   "end_elevation_m": 251.68033207069305,
   "start_xy": [
    363674.6428877123,
    4432514.325640216
   ],
   "end_xy": [
    363669.0778625673,
    4432506.017180964
   ]
  },
  "max_20m": {
   "gradient_pct": 21.589800286246543,
   "start_distance_m": 373.0,
   "end_distance_m": 393.0,
   "midpoint_distance_m": 383.0,
   "start_elevation_m": 247.784034681273,
   "end_elevation_m": 252.1019947385223,
   "start_xy": [
    363679.09490782826,
    4432520.972407617
   ],
   "end_xy": [
    363667.96485753835,
    4432504.355489113
   ]
  },
  "max_25m": {
   "gradient_pct": 21.407995529466234,
   "start_distance_m": 366.0,
   "end_distance_m": 391.0,
   "midpoint_distance_m": 378.5,
   "start_elevation_m": 246.3283331883265,
   "end_elevation_m": 251.68033207069305,
   "start_xy": [
    363682.9904254297,
    4432526.788329093
   ],
   "end_xy": [
    363669.0778625673,
    4432506.017180964
   ]
  },
  "max_50m": {
   "gradient_pct": 20.520503880458083,
   "start_distance_m": 357.0,
   "end_distance_m": 407.0,
   "midpoint_distance_m": 382.0,
   "start_elevation_m": 244.5287997176433,
   "end_elevation_m": 254.78905165787233,
   "start_xy": [
    363687.99894806015,
    4432534.26594242
   ],
   "end_xy": [
    363660.1738223354,
    4432492.723646161
   ]
  },
  "max_100m": {
   "gradient_pct": 18.6144971048721,
   "start_distance_m": 322.0,
   "end_distance_m": 422.0,
   "midpoint_distance_m": 372.0,
   "start_elevation_m": 238.73718023771283,
   "end_elevation_m": 257.35167734258494,
   "start_xy": [
    363708.435047514,
    4432562.6370521635
   ],
   "end_xy": [
    363651.82628461794,
    4432480.260957284
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -3.6974849636521867,
   "start_distance_m": 231.0,
   "end_distance_m": 236.0,
   "midpoint_distance_m": 233.5,
   "start_elevation_m": 234.26030491601813,
   "end_elevation_m": 234.07543066783552,
   "start_xy": [
    363746.6154576554,
    4432640.893257308
   ],
   "end_xy": [
    363747.51338293665,
    4432635.976792624
   ]
  },
  "min_10m": {
   "gradient_pct": -3.5635444903982716,
   "start_distance_m": 225.0,
   "end_distance_m": 235.0,
   "midpoint_distance_m": 230.0,
   "start_elevation_m": 234.47294344935239,
   "end_elevation_m": 234.11658900031256,
   "start_xy": [
    363745.4168413171,
    4432646.77231496
   ],
   "end_xy": [
    363747.3763610446,
    4432636.967360644
   ]
  },
  "min_20m": {
   "gradient_pct": -2.948591010939623,
   "start_distance_m": 224.0,
   "end_distance_m": 244.0,
   "midpoint_distance_m": 234.0,
   "start_elevation_m": 234.52106645093716,
   "end_elevation_m": 233.93134824874923,
   "start_xy": [
    363745.2170719274,
    4432647.752157902
   ],
   "end_xy": [
    363748.6095580729,
    4432628.052248469
   ]
  },
  "min_25m": {
   "gradient_pct": -2.5917217120754685,
   "start_distance_m": 224.0,
   "end_distance_m": 249.0,
   "midpoint_distance_m": 236.5,
   "start_elevation_m": 234.52106645093716,
   "end_elevation_m": 233.8731360229183,
   "start_xy": [
    363745.2170719274,
    4432647.752157902
   ],
   "end_xy": [
    363748.0178350024,
    4432623.1218325095
   ]
  },
  "min_50m": {
   "gradient_pct": -0.8696147409104924,
   "start_distance_m": 220.0,
   "end_distance_m": 270.0,
   "midpoint_distance_m": 245.0,
   "start_elevation_m": 234.4660391697101,
   "end_elevation_m": 234.03123179925484,
   "start_xy": [
    363745.27801041695,
    4432651.735057602
   ],
   "end_xy": [
    363739.6520455964,
    4432604.202512676
   ]
  },
  "min_100m": {
   "gradient_pct": 3.295502956980698,
   "start_distance_m": 197.0,
   "end_distance_m": 297.0,
   "midpoint_distance_m": 247.0,
   "start_elevation_m": 232.52747413339162,
   "end_elevation_m": 235.82297709037232,
   "start_xy": [
    363761.22667560476,
    4432665.965135442
   ],
   "end_xy": [
    363723.81372228416,
    4432582.335928245
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 23.434908833237955,
   "start_distance_m": 389.0,
   "end_distance_m": 391.0,
   "midpoint_distance_m": 390.0,
   "start_elevation_m": 251.2116338940283,
   "end_elevation_m": 251.68033207069305,
   "start_xy": [
    363670.1908675963,
    4432507.678872814
   ],
   "end_xy": [
    363669.0778625673,
    4432506.017180964
   ]
  },
  "max_3m": {
   "gradient_pct": 22.678100187382217,
   "start_distance_m": 381.0,
   "end_distance_m": 384.0,
   "midpoint_distance_m": 382.5,
   "start_elevation_m": 249.48684468240873,
   "end_elevation_m": 250.1671876880302,
   "start_xy": [
    363674.6428877123,
    4432514.325640216
   ],
   "end_xy": [
    363672.9733801688,
    4432511.83310244
   ]
  }
 },
 "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:26918",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/usa/pa/USGS_one_meter_x36y444_PA_Sandy_2014.tif"
  ],
  "calculated_at": "2026-09-07T10:42:10+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-band3.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_Sandy_2014 (collected 2014)",
  "elevation_tile_ids": [
   "x36y444"
  ],
  "climb_origin": "discovered",
  "canopy_check": "unavailable \u2014 no surface model (DSM or point cloud) registered for this coverage",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Hellam",
  "county": "Pennsylvania"
 }
}