{
 "ocl_version": "0.1.0",
 "name": "Morningside Lane",
 "slug": "morningside-lane",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 29.24533108880709,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 587.0,
   "end_distance_m": 589.0,
   "start_elevation_m": 37.895838993771676,
   "end_elevation_m": 38.48074561554782,
   "min_gradient_pct": -13.279384883329204
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 28.15473946598838,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 578.0,
   "end_distance_m": 581.0,
   "start_elevation_m": 35.840437696548825,
   "end_elevation_m": 36.68507988052848,
   "min_gradient_pct": -9.738172324069438
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 25.967570319182016,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 576.0,
   "end_distance_m": 581.0,
   "start_elevation_m": 35.386701364569376,
   "end_elevation_m": 36.68507988052848,
   "min_gradient_pct": -8.124081461644437
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 23.802481085816254,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 579.0,
   "end_distance_m": 589.0,
   "start_elevation_m": 36.10049750696619,
   "end_elevation_m": 38.48074561554782,
   "min_gradient_pct": -6.402779579040363
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 23.353790969811392,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 574.0,
   "end_distance_m": 594.0,
   "start_elevation_m": 34.912566299783336,
   "end_elevation_m": 39.583324493745614,
   "min_gradient_pct": -4.133507557420337
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 22.07416282125223,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 574.0,
   "end_distance_m": 599.0,
   "start_elevation_m": 34.912566299783336,
   "end_elevation_m": 40.43110700509639,
   "min_gradient_pct": -3.736845408553961
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.420527190532056,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 567.0,
   "end_distance_m": 617.0,
   "start_elevation_m": 33.77034487838186,
   "end_elevation_m": 43.48060847364789,
   "min_gradient_pct": -1.8508337598299391
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.327031406412257,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 517.0,
   "end_distance_m": 617.0,
   "start_elevation_m": 26.153577067235634,
   "end_elevation_m": 43.48060847364789,
   "min_gradient_pct": -0.5709668471103555
  }
 ],
 "shape": {
  "ascent_concentration": 0.456,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 114.0,
  "shape_class": "stepped"
 },
 "length_m": 1398.402527334262,
 "start_elevation_m": 10.984045266150037,
 "end_elevation_m": 83.82299392700926,
 "endpoint_gain_m": 72.83894866085923,
 "overall_gradient_pct": 5.208725473323494,
 "accumulated_ascent_m": 79.82641768344276,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 25.967570319182016,
   "start_distance_m": 576.0,
   "end_distance_m": 581.0,
   "midpoint_distance_m": 578.5,
   "start_elevation_m": 35.386701364569376,
   "end_elevation_m": 36.68507988052848,
   "start_xy": [
    522938.91106333194,
    4935979.968685999
   ],
   "end_xy": [
    522933.9471586855,
    4935980.568394812
   ]
  },
  "max_10m": {
   "gradient_pct": 23.802481085816254,
   "start_distance_m": 579.0,
   "end_distance_m": 589.0,
   "midpoint_distance_m": 584.0,
   "start_elevation_m": 36.10049750696619,
   "end_elevation_m": 38.48074561554782,
   "start_xy": [
    522935.93272054405,
    4935980.3285112865
   ],
   "end_xy": [
    522926.00491125113,
    4935981.527928913
   ]
  },
  "max_20m": {
   "gradient_pct": 23.353790969811392,
   "start_distance_m": 574.0,
   "end_distance_m": 594.0,
   "midpoint_distance_m": 584.0,
   "start_elevation_m": 34.912566299783336,
   "end_elevation_m": 39.583324493745614,
   "start_xy": [
    522940.8966251905,
    4935979.728802473
   ],
   "end_xy": [
    522921.0410066047,
    4935982.127637726
   ]
  },
  "max_25m": {
   "gradient_pct": 22.07416282125223,
   "start_distance_m": 574.0,
   "end_distance_m": 599.0,
   "midpoint_distance_m": 586.5,
   "start_elevation_m": 34.912566299783336,
   "end_elevation_m": 40.43110700509639,
   "start_xy": [
    522940.8966251905,
    4935979.728802473
   ],
   "end_xy": [
    522916.0771019582,
    4935982.7273465395
   ]
  },
  "max_50m": {
   "gradient_pct": 19.420527190532056,
   "start_distance_m": 567.0,
   "end_distance_m": 617.0,
   "midpoint_distance_m": 592.0,
   "start_elevation_m": 33.77034487838186,
   "end_elevation_m": 43.48060847364789,
   "start_xy": [
    522947.8460916956,
    4935978.889210134
   ],
   "end_xy": [
    522898.20704523096,
    4935984.886298268
   ]
  },
  "max_100m": {
   "gradient_pct": 17.327031406412257,
   "start_distance_m": 517.0,
   "end_distance_m": 617.0,
   "midpoint_distance_m": 567.0,
   "start_elevation_m": 26.153577067235634,
   "end_elevation_m": 43.48060847364789,
   "start_xy": [
    522995.9757274909,
    4935966.173261026
   ],
   "end_xy": [
    522898.20704523096,
    4935984.886298268
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -8.124081461644437,
   "start_distance_m": 793.0,
   "end_distance_m": 798.0,
   "midpoint_distance_m": 795.5,
   "start_elevation_m": 58.97408184118299,
   "end_elevation_m": 58.56787776810077,
   "start_xy": [
    522764.2119799451,
    4936024.693111684
   ],
   "end_xy": [
    522760.3830483858,
    4936027.908587251
   ]
  },
  "min_10m": {
   "gradient_pct": -6.402779579040363,
   "start_distance_m": 59.0,
   "end_distance_m": 69.0,
   "midpoint_distance_m": 64.0,
   "start_elevation_m": 12.153388252278166,
   "end_elevation_m": 11.51311029437413,
   "start_xy": [
    523226.040408136,
    4935618.740549994
   ],
   "end_xy": [
    523218.5583139287,
    4935624.733542618
   ]
  },
  "min_20m": {
   "gradient_pct": -4.133507557420337,
   "start_distance_m": 834.0,
   "end_distance_m": 854.0,
   "midpoint_distance_m": 844.0,
   "start_elevation_m": 59.341232600083124,
   "end_elevation_m": 58.51453108859906,
   "start_xy": [
    522732.81474115903,
    4936051.0600113245
   ],
   "end_xy": [
    522717.49901492195,
    4936063.9219135875
   ]
  },
  "min_25m": {
   "gradient_pct": -3.736845408553961,
   "start_distance_m": 835.0,
   "end_distance_m": 860.0,
   "midpoint_distance_m": 847.5,
   "start_elevation_m": 59.32022672773412,
   "end_elevation_m": 58.38601537559563,
   "start_xy": [
    522732.0489548472,
    4936051.703106438
   ],
   "end_xy": [
    522712.4245966028,
    4936067.066440631
   ]
  },
  "min_50m": {
   "gradient_pct": -1.8508337598299391,
   "start_distance_m": 834.0,
   "end_distance_m": 884.0,
   "midpoint_distance_m": 859.0,
   "start_elevation_m": 59.341232600083124,
   "end_elevation_m": 58.415815720168155,
   "start_xy": [
    522732.81474115903,
    4936051.0600113245
   ],
   "end_xy": [
    522690.40399944445,
    4936075.730345476
   ]
  },
  "min_100m": {
   "gradient_pct": -0.5709668471103555,
   "start_distance_m": 792.0,
   "end_distance_m": 892.0,
   "midpoint_distance_m": 842.0,
   "start_elevation_m": 58.98046721443269,
   "end_elevation_m": 58.40950036732234,
   "start_xy": [
    522764.9777662569,
    4936024.050016572
   ],
   "end_xy": [
    522682.4608524577,
    4936076.682404269
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 29.24533108880709,
   "start_distance_m": 587.0,
   "end_distance_m": 589.0,
   "midpoint_distance_m": 588.0,
   "start_elevation_m": 37.895838993771676,
   "end_elevation_m": 38.48074561554782,
   "start_xy": [
    522927.9904731097,
    4935981.288045388
   ],
   "end_xy": [
    522926.00491125113,
    4935981.527928913
   ]
  },
  "max_3m": {
   "gradient_pct": 28.15473946598838,
   "start_distance_m": 578.0,
   "end_distance_m": 581.0,
   "midpoint_distance_m": 579.5,
   "start_elevation_m": 35.840437696548825,
   "end_elevation_m": 36.68507988052848,
   "start_xy": [
    522936.92550147336,
    4935980.208569524
   ],
   "end_xy": [
    522933.9471586855,
    4935980.568394812
   ]
  }
 },
 "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": []
 },
 "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_x52y494_ME_MidCentral_B23.tif"
  ],
  "calculated_at": "2026-08-24T20:46:04+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_MidCentral_B23 (collected 2023)",
  "elevation_tile_ids": [
   "x52y494"
  ],
  "climb_origin": "discovered",
  "notes": "Coarse pass: max 14.4% over 200 m (Terrain 50), gain 72.7 m over 1398 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": "Orland",
  "county": "Maine"
 }
}