{
 "ocl_version": "0.1.0",
 "name": "Valleyvue Drive",
 "slug": "valleyvue-drive",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 23.816585604424745,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 490.0,
   "end_distance_m": 492.0,
   "start_elevation_m": 372.76539300033005,
   "end_elevation_m": 373.24172471241855,
   "min_gradient_pct": -3.1305449552803566
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 23.41096150171514,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 489.0,
   "end_distance_m": 492.0,
   "start_elevation_m": 372.5393958673671,
   "end_elevation_m": 373.24172471241855,
   "min_gradient_pct": -3.0321877148423937
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 22.52186758858329,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 488.0,
   "end_distance_m": 493.0,
   "start_elevation_m": 372.32865793954795,
   "end_elevation_m": 373.4547513189771,
   "min_gradient_pct": -2.835527428142086
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 21.59962751094497,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 488.0,
   "end_distance_m": 498.0,
   "start_elevation_m": 372.32865793954795,
   "end_elevation_m": 374.48862069064245,
   "min_gradient_pct": -1.5104457261207926
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.69938375643204,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 483.0,
   "end_distance_m": 503.0,
   "start_elevation_m": 371.3495422431712,
   "end_elevation_m": 375.4894189944576,
   "min_gradient_pct": -1.4161580443581556
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.537624575673817,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 487.0,
   "end_distance_m": 512.0,
   "start_elevation_m": 372.1330918008094,
   "end_elevation_m": 377.26749794472784,
   "min_gradient_pct": -1.3904112731827354
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.849294807251113,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 477.0,
   "end_distance_m": 527.0,
   "start_elevation_m": 370.17584532906227,
   "end_elevation_m": 380.1004927326878,
   "min_gradient_pct": -1.114222350372529
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 18.131844220223968,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 452.0,
   "end_distance_m": 552.0,
   "start_elevation_m": 366.08140652782635,
   "end_elevation_m": 384.2132507480503,
   "min_gradient_pct": -0.8108677607773416
  }
 ],
 "shape": {
  "ascent_concentration": 0.471,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 144.0,
  "shape_class": "stepped"
 },
 "length_m": 609.9310160191865,
 "start_elevation_m": 339.02685795471245,
 "end_elevation_m": 389.29364703248126,
 "endpoint_gain_m": 50.266789077768806,
 "overall_gradient_pct": 8.241389232153358,
 "accumulated_ascent_m": 51.27812535120745,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 22.52186758858329,
   "start_distance_m": 488.0,
   "end_distance_m": 493.0,
   "midpoint_distance_m": 490.5,
   "start_elevation_m": 372.32865793954795,
   "end_elevation_m": 373.4547513189771,
   "start_xy": [
    589636.9796193717,
    4496814.701535217
   ],
   "end_xy": [
    589641.9730677999,
    4496814.957411741
   ]
  },
  "max_10m": {
   "gradient_pct": 21.59962751094497,
   "start_distance_m": 488.0,
   "end_distance_m": 498.0,
   "midpoint_distance_m": 493.0,
   "start_elevation_m": 372.32865793954795,
   "end_elevation_m": 374.48862069064245,
   "start_xy": [
    589636.9796193717,
    4496814.701535217
   ],
   "end_xy": [
    589646.966516228,
    4496815.213288264
   ]
  },
  "max_20m": {
   "gradient_pct": 20.69938375643204,
   "start_distance_m": 483.0,
   "end_distance_m": 503.0,
   "midpoint_distance_m": 493.0,
   "start_elevation_m": 371.3495422431712,
   "end_elevation_m": 375.4894189944576,
   "start_xy": [
    589631.9861709436,
    4496814.445658694
   ],
   "end_xy": [
    589651.9599646563,
    4496815.469164787
   ]
  },
  "max_25m": {
   "gradient_pct": 20.537624575673817,
   "start_distance_m": 487.0,
   "end_distance_m": 512.0,
   "midpoint_distance_m": 499.5,
   "start_elevation_m": 372.1330918008094,
   "end_elevation_m": 377.26749794472784,
   "start_xy": [
    589635.9809296861,
    4496814.650359913
   ],
   "end_xy": [
    589660.9481718269,
    4496815.929742529
   ]
  },
  "max_50m": {
   "gradient_pct": 19.849294807251113,
   "start_distance_m": 477.0,
   "end_distance_m": 527.0,
   "midpoint_distance_m": 502.0,
   "start_elevation_m": 370.17584532906227,
   "end_elevation_m": 380.1004927326878,
   "start_xy": [
    589625.9940328298,
    4496814.138606866
   ],
   "end_xy": [
    589675.9285171115,
    4496816.697372099
   ]
  },
  "max_100m": {
   "gradient_pct": 18.131844220223968,
   "start_distance_m": 452.0,
   "end_distance_m": 552.0,
   "midpoint_distance_m": 502.0,
   "start_elevation_m": 366.08140652782635,
   "end_elevation_m": 384.2132507480503,
   "start_xy": [
    589601.0267906889,
    4496812.85922425
   ],
   "end_xy": [
    589700.9018910632,
    4496817.826239203
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -2.835527428142086,
   "start_distance_m": 2.0,
   "end_distance_m": 7.0,
   "midpoint_distance_m": 4.5,
   "start_elevation_m": 339.00005828085125,
   "end_elevation_m": 338.85828190944414,
   "start_xy": [
    589210.8626316894,
    4496910.697126186
   ],
   "end_xy": [
    589215.4742109127,
    4496908.764941654
   ]
  },
  "min_10m": {
   "gradient_pct": -1.5104457261207926,
   "start_distance_m": 348.0,
   "end_distance_m": 358.0,
   "midpoint_distance_m": 353.0,
   "start_elevation_m": 360.65281744316513,
   "end_elevation_m": 360.50177287055305,
   "start_xy": [
    589497.1197482068,
    4496808.510561152
   ],
   "end_xy": [
    589507.1126328072,
    4496808.887731355
   ]
  },
  "min_20m": {
   "gradient_pct": -1.4161580443581556,
   "start_distance_m": 343.0,
   "end_distance_m": 363.0,
   "midpoint_distance_m": 353.0,
   "start_elevation_m": 360.7215014422739,
   "end_elevation_m": 360.4382698334023,
   "start_xy": [
    589492.1233059065,
    4496808.321976052
   ],
   "end_xy": [
    589512.1090751075,
    4496809.076316455
   ]
  },
  "min_25m": {
   "gradient_pct": -1.3904112731827354,
   "start_distance_m": 339.0,
   "end_distance_m": 364.0,
   "midpoint_distance_m": 351.5,
   "start_elevation_m": 360.77347154113124,
   "end_elevation_m": 360.42586872283556,
   "start_xy": [
    589488.1261520664,
    4496808.17110797
   ],
   "end_xy": [
    589513.1083635676,
    4496809.1140334755
   ]
  },
  "min_50m": {
   "gradient_pct": -1.114222350372529,
   "start_distance_m": 325.0,
   "end_distance_m": 375.0,
   "midpoint_distance_m": 350.0,
   "start_elevation_m": 360.8602593740475,
   "end_elevation_m": 360.3031481988612,
   "start_xy": [
    589474.1361136257,
    4496807.643069687
   ],
   "end_xy": [
    589524.1005366282,
    4496809.528920698
   ]
  },
  "min_100m": {
   "gradient_pct": -0.8108677607773416,
   "start_distance_m": 276.0,
   "end_distance_m": 376.0,
   "midpoint_distance_m": 326.0,
   "start_elevation_m": 361.1157310573793,
   "end_elevation_m": 360.304863296602,
   "start_xy": [
    589425.1709790833,
    4496805.794935697
   ],
   "end_xy": [
    589525.0998250882,
    4496809.566637718
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 23.816585604424745,
   "start_distance_m": 490.0,
   "end_distance_m": 492.0,
   "midpoint_distance_m": 491.0,
   "start_elevation_m": 372.76539300033005,
   "end_elevation_m": 373.24172471241855,
   "start_xy": [
    589638.976998743,
    4496814.803885827
   ],
   "end_xy": [
    589640.9743781142,
    4496814.906236436
   ]
  },
  "max_3m": {
   "gradient_pct": 23.41096150171514,
   "start_distance_m": 489.0,
   "end_distance_m": 492.0,
   "midpoint_distance_m": 490.5,
   "start_elevation_m": 372.5393958673671,
   "end_elevation_m": 373.24172471241855,
   "start_xy": [
    589637.9783090573,
    4496814.752710522
   ],
   "end_xy": [
    589640.9743781142,
    4496814.906236436
   ]
  }
 },
 "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_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_x58y450_PA_WesternPA_2019_D20.tif"
  ],
  "calculated_at": "2026-09-07T15:19:13+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": [
   "x58y450"
  ],
  "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": "Richland",
  "county": "Pennsylvania"
 }
}