{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (47.1415, -68.4595)",
 "slug": "discovered-lane-47-1415-68-4595",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 34.74287360819943,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 163.0,
   "end_distance_m": 165.0,
   "start_elevation_m": 240.79245060399327,
   "end_elevation_m": 241.48730807615726,
   "min_gradient_pct": -14.886346598061095
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 34.28996435498372,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 163.0,
   "end_distance_m": 166.0,
   "start_elevation_m": 240.79245060399327,
   "end_elevation_m": 241.82114953464279,
   "min_gradient_pct": -14.612661293394543
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 32.55152876354771,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 162.0,
   "end_distance_m": 167.0,
   "start_elevation_m": 240.49213460476088,
   "end_elevation_m": 242.11971104293826,
   "min_gradient_pct": -14.116358193092537
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 29.079140035835565,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 161.0,
   "end_distance_m": 171.0,
   "start_elevation_m": 240.24049860490484,
   "end_elevation_m": 243.1484126084884,
   "min_gradient_pct": -13.721815629706384
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 23.566014205596417,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 152.0,
   "end_distance_m": 172.0,
   "start_elevation_m": 238.61544561849004,
   "end_elevation_m": 243.32864845960933,
   "min_gradient_pct": -13.659125430353924
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 22.223452989847146,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 147.0,
   "end_distance_m": 172.0,
   "start_elevation_m": 237.77278521214754,
   "end_elevation_m": 243.32864845960933,
   "min_gradient_pct": -13.47672812294104
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 17.557682778632227,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 123.0,
   "end_distance_m": 173.0,
   "start_elevation_m": 234.68259350035524,
   "end_elevation_m": 243.46143488967135,
   "min_gradient_pct": -11.587815984601889
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 13.447398746270691,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 74.0,
   "end_distance_m": 174.0,
   "start_elevation_m": 230.09739968438836,
   "end_elevation_m": 243.54479843065906,
   "min_gradient_pct": -8.0079256065996
  }
 ],
 "shape": {
  "ascent_concentration": 0.505,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 83.0,
  "shape_class": "stepped"
 },
 "length_m": 1636.0894558889981,
 "start_elevation_m": 225.62671964501624,
 "end_elevation_m": 265.60345239110245,
 "endpoint_gain_m": 39.97673274608621,
 "overall_gradient_pct": 2.443431965299486,
 "accumulated_ascent_m": 65.20705078117595,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 32.55152876354771,
   "start_distance_m": 162.0,
   "end_distance_m": 167.0,
   "midpoint_distance_m": 164.5,
   "start_elevation_m": 240.49213460476088,
   "end_elevation_m": 242.11971104293826,
   "start_xy": [
    540971.5552355007,
    5221560.138112769
   ],
   "end_xy": [
    540969.1613000432,
    5221555.752201542
   ]
  },
  "max_10m": {
   "gradient_pct": 29.079140035835565,
   "start_distance_m": 161.0,
   "end_distance_m": 171.0,
   "midpoint_distance_m": 166.0,
   "start_elevation_m": 240.24049860490484,
   "end_elevation_m": 243.1484126084884,
   "start_xy": [
    540972.0472309159,
    5221561.0087105585
   ],
   "end_xy": [
    540967.5649318937,
    5221552.084558058
   ]
  },
  "max_20m": {
   "gradient_pct": 23.566014205596417,
   "start_distance_m": 152.0,
   "end_distance_m": 172.0,
   "midpoint_distance_m": 162.0,
   "start_elevation_m": 238.61544561849004,
   "end_elevation_m": 243.32864845960933,
   "start_xy": [
    540976.4751896536,
    5221568.844090666
   ],
   "end_xy": [
    540967.1658398564,
    5221551.167647187
   ]
  },
  "max_25m": {
   "gradient_pct": 22.223452989847146,
   "start_distance_m": 147.0,
   "end_distance_m": 172.0,
   "midpoint_distance_m": 159.5,
   "start_elevation_m": 237.77278521214754,
   "end_elevation_m": 243.32864845960933,
   "start_xy": [
    540978.93516673,
    5221573.197079614
   ],
   "end_xy": [
    540967.1658398564,
    5221551.167647187
   ]
  },
  "max_50m": {
   "gradient_pct": 17.557682778632227,
   "start_distance_m": 123.0,
   "end_distance_m": 173.0,
   "midpoint_distance_m": 148.0,
   "start_elevation_m": 234.68259350035524,
   "end_elevation_m": 243.46143488967135,
   "start_xy": [
    540993.774308095,
    5221592.009744264
   ],
   "end_xy": [
    540966.766747819,
    5221550.250736315
   ]
  },
  "max_100m": {
   "gradient_pct": 13.447398746270691,
   "start_distance_m": 74.0,
   "end_distance_m": 174.0,
   "midpoint_distance_m": 124.0,
   "start_elevation_m": 230.09739968438836,
   "end_elevation_m": 243.54479843065906,
   "start_xy": [
    541026.4382368907,
    5221628.501786571
   ],
   "end_xy": [
    540966.408951633,
    5221549.318393793
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -14.116358193092537,
   "start_distance_m": 1056.0,
   "end_distance_m": 1061.0,
   "midpoint_distance_m": 1058.5,
   "start_elevation_m": 271.17107605840016,
   "end_elevation_m": 270.46525814874553,
   "start_xy": [
    540747.9316849591,
    5220839.865213526
   ],
   "end_xy": [
    540747.159934105,
    5220834.925132493
   ]
  },
  "min_10m": {
   "gradient_pct": -13.721815629706384,
   "start_distance_m": 1059.0,
   "end_distance_m": 1069.0,
   "midpoint_distance_m": 1064.0,
   "start_elevation_m": 270.76298508070676,
   "end_elevation_m": 269.3908035177361,
   "start_xy": [
    540747.4686344466,
    5220836.901164906
   ],
   "end_xy": [
    540746.4188631348,
    5220826.961451191
   ]
  },
  "min_20m": {
   "gradient_pct": -13.659125430353924,
   "start_distance_m": 1054.0,
   "end_distance_m": 1074.0,
   "midpoint_distance_m": 1064.0,
   "start_elevation_m": 271.44556476228604,
   "end_elevation_m": 268.71373967621525,
   "start_xy": [
    540748.2403853006,
    5220841.84124594
   ],
   "end_xy": [
    540746.3062680142,
    5220821.96560736
   ]
  },
  "min_25m": {
   "gradient_pct": -13.47672812294104,
   "start_distance_m": 1053.0,
   "end_distance_m": 1078.0,
   "midpoint_distance_m": 1065.5,
   "start_elevation_m": 271.5760941699325,
   "end_elevation_m": 268.20691213919724,
   "start_xy": [
    540748.4944077886,
    5220842.807751587
   ],
   "end_xy": [
    540746.2899672318,
    5220817.965640575
   ]
  },
  "min_50m": {
   "gradient_pct": -11.587815984601889,
   "start_distance_m": 1043.0,
   "end_distance_m": 1093.0,
   "midpoint_distance_m": 1068.0,
   "start_elevation_m": 272.5401206956889,
   "end_elevation_m": 266.746212703388,
   "start_xy": [
    540751.5274264339,
    5220852.324873638
   ],
   "end_xy": [
    540746.2288392975,
    5220802.96576513
   ]
  },
  "min_100m": {
   "gradient_pct": -8.0079256065996,
   "start_distance_m": 1037.0,
   "end_distance_m": 1137.0,
   "midpoint_distance_m": 1087.0,
   "start_elevation_m": 272.8656931336097,
   "end_elevation_m": 264.8577675270101,
   "start_xy": [
    540753.7775206054,
    5220857.883205897
   ],
   "end_xy": [
    540745.5639435882,
    5220758.978455305
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 34.74287360819943,
   "start_distance_m": 163.0,
   "end_distance_m": 165.0,
   "midpoint_distance_m": 164.0,
   "start_elevation_m": 240.79245060399327,
   "end_elevation_m": 241.48730807615726,
   "start_xy": [
    540971.0632400854,
    5221559.2675149795
   ],
   "end_xy": [
    540970.0792492548,
    5221557.5263194
   ]
  },
  "max_3m": {
   "gradient_pct": 34.28996435498372,
   "start_distance_m": 163.0,
   "end_distance_m": 166.0,
   "midpoint_distance_m": 164.5,
   "start_elevation_m": 240.79245060399327,
   "end_elevation_m": 241.82114953464279,
   "start_xy": [
    540971.0632400854,
    5221559.2675149795
   ],
   "end_xy": [
    540969.5872538395,
    5221556.65572161
   ]
  }
 },
 "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"
  ],
  "suggested_summit_cut_m": 964.0,
  "trailing_descent_m": 8.9
 },
 "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_x54y523_ME_CrownofMaine_2018_A18.tif"
  ],
  "calculated_at": "2026-08-24T20:58:44+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-3-260824",
  "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_CrownofMaine_2018_A18 (collected 2018)",
  "elevation_tile_ids": [
   "x54y523"
  ],
  "climb_origin": "discovered",
  "notes": "Coarse pass: max 9.9% over 200 m (Terrain 50), gain 40.0 m over 1636 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": "New Canada",
  "county": "Maine"
 }
}