{
 "ocl_version": "0.1.0",
 "name": "Wildwood Drive",
 "slug": "wildwood-drive",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 35.26502614303979,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 538.0,
   "end_distance_m": 540.0,
   "start_elevation_m": 218.9353611895824,
   "end_elevation_m": 219.6406617124432,
   "min_gradient_pct": -21.388064944154905
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 33.64622066400216,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 525.0,
   "end_distance_m": 528.0,
   "start_elevation_m": 215.3434178264381,
   "end_elevation_m": 216.35280444635816,
   "min_gradient_pct": -20.16448137456071
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 31.781891103913154,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 523.0,
   "end_distance_m": 528.0,
   "start_elevation_m": 214.7637098911625,
   "end_elevation_m": 216.35280444635816,
   "min_gradient_pct": -17.945103602509107
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 29.14798157086409,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 523.0,
   "end_distance_m": 533.0,
   "start_elevation_m": 214.7637098911625,
   "end_elevation_m": 217.67850804824891,
   "min_gradient_pct": -14.019027391263705
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 27.568009195028083,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 520.0,
   "end_distance_m": 540.0,
   "start_elevation_m": 214.1270598734376,
   "end_elevation_m": 219.6406617124432,
   "min_gradient_pct": -8.20054636629962
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 25.922191505882097,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 520.0,
   "end_distance_m": 545.0,
   "start_elevation_m": 214.1270598734376,
   "end_elevation_m": 220.6076077499081,
   "min_gradient_pct": -7.440370876695056
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.131787627544213,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 490.0,
   "end_distance_m": 540.0,
   "start_elevation_m": 210.0747678986711,
   "end_elevation_m": 219.6406617124432,
   "min_gradient_pct": -4.1439811919262866
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 16.518999943883813,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 449.0,
   "end_distance_m": 549.0,
   "start_elevation_m": 204.72305764656858,
   "end_elevation_m": 221.2420575904524,
   "min_gradient_pct": -0.6364942697379661
  }
 ],
 "shape": {
  "ascent_concentration": 0.464,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 94.0,
  "shape_class": "stepped"
 },
 "length_m": 587.6023239741845,
 "start_elevation_m": 180.25993980535787,
 "end_elevation_m": 225.5703827576065,
 "endpoint_gain_m": 45.31044295224862,
 "overall_gradient_pct": 7.711072795933883,
 "accumulated_ascent_m": 51.97300263645923,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 31.781891103913154,
   "start_distance_m": 523.0,
   "end_distance_m": 528.0,
   "midpoint_distance_m": 525.5,
   "start_elevation_m": 214.7637098911625,
   "end_elevation_m": 216.35280444635816,
   "start_xy": [
    384424.02583585115,
    4918154.24363058
   ],
   "end_xy": [
    384428.9050073941,
    4918155.336189527
   ]
  },
  "max_10m": {
   "gradient_pct": 29.14798157086409,
   "start_distance_m": 523.0,
   "end_distance_m": 533.0,
   "midpoint_distance_m": 528.0,
   "start_elevation_m": 214.7637098911625,
   "end_elevation_m": 217.67850804824891,
   "start_xy": [
    384424.02583585115,
    4918154.24363058
   ],
   "end_xy": [
    384433.7841789371,
    4918156.428748475
   ]
  },
  "max_20m": {
   "gradient_pct": 27.568009195028083,
   "start_distance_m": 520.0,
   "end_distance_m": 540.0,
   "midpoint_distance_m": 530.0,
   "start_elevation_m": 214.1270598734376,
   "end_elevation_m": 219.6406617124432,
   "start_xy": [
    384421.09833292535,
    4918153.5880952105
   ],
   "end_xy": [
    384440.6150190972,
    4918157.958331002
   ]
  },
  "max_25m": {
   "gradient_pct": 25.922191505882097,
   "start_distance_m": 520.0,
   "end_distance_m": 545.0,
   "midpoint_distance_m": 532.5,
   "start_elevation_m": 214.1270598734376,
   "end_elevation_m": 220.6076077499081,
   "start_xy": [
    384421.09833292535,
    4918153.5880952105
   ],
   "end_xy": [
    384445.49419064017,
    4918159.050889949
   ]
  },
  "max_50m": {
   "gradient_pct": 19.131787627544213,
   "start_distance_m": 490.0,
   "end_distance_m": 540.0,
   "midpoint_distance_m": 515.0,
   "start_elevation_m": 210.0747678986711,
   "end_elevation_m": 219.6406617124432,
   "start_xy": [
    384393.7715471436,
    4918141.54866955
   ],
   "end_xy": [
    384440.6150190972,
    4918157.958331002
   ]
  },
  "max_100m": {
   "gradient_pct": 16.518999943883813,
   "start_distance_m": 449.0,
   "end_distance_m": 549.0,
   "midpoint_distance_m": 499.0,
   "start_elevation_m": 204.72305764656858,
   "end_elevation_m": 221.2420575904524,
   "start_xy": [
    384357.07733081596,
    4918123.258385569
   ],
   "end_xy": [
    384449.39752787456,
    4918159.924937108
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -17.945103602509107,
   "start_distance_m": 220.0,
   "end_distance_m": 225.0,
   "midpoint_distance_m": 222.5,
   "start_elevation_m": 185.55129789464988,
   "end_elevation_m": 184.65404271452442,
   "start_xy": [
    384154.64728930086,
    4918071.354528509
   ],
   "end_xy": [
    384158.96780254296,
    4918068.837950411
   ]
  },
  "min_10m": {
   "gradient_pct": -14.019027391263705,
   "start_distance_m": 218.0,
   "end_distance_m": 228.0,
   "midpoint_distance_m": 223.0,
   "start_elevation_m": 185.8901434739649,
   "end_elevation_m": 184.48824073483854,
   "start_xy": [
    384152.919084004,
    4918072.361159748
   ],
   "end_xy": [
    384161.56011048827,
    4918067.328003552
   ]
  },
  "min_20m": {
   "gradient_pct": -8.20054636629962,
   "start_distance_m": 217.0,
   "end_distance_m": 237.0,
   "midpoint_distance_m": 227.0,
   "start_elevation_m": 185.86457569909982,
   "end_elevation_m": 184.2244664258399,
   "start_xy": [
    384152.0549813556,
    4918072.8644753685
   ],
   "end_xy": [
    384169.27267140074,
    4918062.691469116
   ]
  },
  "min_25m": {
   "gradient_pct": -7.440370876695056,
   "start_distance_m": 218.0,
   "end_distance_m": 243.0,
   "midpoint_distance_m": 230.5,
   "start_elevation_m": 185.8901434739649,
   "end_elevation_m": 184.03005075479115,
   "start_xy": [
    384152.919084004,
    4918072.361159748
   ],
   "end_xy": [
    384174.3620006652,
    4918059.513619586
   ]
  },
  "min_50m": {
   "gradient_pct": -4.1439811919262866,
   "start_distance_m": 213.0,
   "end_distance_m": 263.0,
   "midpoint_distance_m": 238.0,
   "start_elevation_m": 185.79158929633218,
   "end_elevation_m": 183.71959870036903,
   "start_xy": [
    384148.5985707619,
    4918074.877737847
   ],
   "end_xy": [
    384191.9100370523,
    4918050.50585897
   ]
  },
  "min_100m": {
   "gradient_pct": -0.6364942697379661,
   "start_distance_m": 60.0,
   "end_distance_m": 160.0,
   "midpoint_distance_m": 110.0,
   "start_elevation_m": 180.4872055366077,
   "end_elevation_m": 179.85071126686972,
   "start_xy": [
    384002.89302119694,
    4918060.288136285
   ],
   "end_xy": [
    384100.4930565251,
    4918082.065030093
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 35.26502614303979,
   "start_distance_m": 538.0,
   "end_distance_m": 540.0,
   "midpoint_distance_m": 539.0,
   "start_elevation_m": 218.9353611895824,
   "end_elevation_m": 219.6406617124432,
   "start_xy": [
    384438.66335048,
    4918157.521307423
   ],
   "end_xy": [
    384440.6150190972,
    4918157.958331002
   ]
  },
  "max_3m": {
   "gradient_pct": 33.64622066400216,
   "start_distance_m": 525.0,
   "end_distance_m": 528.0,
   "midpoint_distance_m": 526.5,
   "start_elevation_m": 215.3434178264381,
   "end_elevation_m": 216.35280444635816,
   "start_xy": [
    384425.97750446835,
    4918154.680654159
   ],
   "end_xy": [
    384428.9050073941,
    4918155.336189527
   ]
  }
 },
 "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:26919",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/usa/me/USGS_1M_19_x38y492_ME_WesternMtns_B24.tif"
  ],
  "calculated_at": "2026-08-24T20:43:18+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/maine-2026-08-22.osm.pbf",
  "osm_snapshot": "2026-08-21T20:21:11Z",
  "run_id": "redo-me-1-260824",
  "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, ME_WesternMtns_B24 (collected 2024)",
  "elevation_tile_ids": [
   "x38y492"
  ],
  "climb_origin": "discovered",
  "notes": "Coarse pass: max 14.9% over 200 m (Terrain 50), gain 45.6 m over 588 m way. KEPT at seed extent: no ascending continuation (min_avg=2.0%). ADOPTED (NE wave 1, 2026-08-25): clean-steep. Wales dials per PRODUCTION 'US ADOPTION DIALS'.",
  "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.html"
 },
 "area": {
  "place": "Sumner",
  "county": "Maine"
 }
}