{
 "ocl_version": "0.1.0",
 "name": "Lazarus Lane",
 "slug": "lazarus-lane",
 "confidence": "U",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 44.88067001107208,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 53.0,
   "end_distance_m": 55.0,
   "start_elevation_m": 25.445050601259673,
   "end_elevation_m": 26.342664001481115,
   "min_gradient_pct": -17.708750276919716
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 42.34469958240581,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 53.0,
   "end_distance_m": 56.0,
   "start_elevation_m": 25.445050601259673,
   "end_elevation_m": 26.715391588731848,
   "min_gradient_pct": -14.644077826406013
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 37.55686296921617,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 52.0,
   "end_distance_m": 57.0,
   "start_elevation_m": 25.151439861655987,
   "end_elevation_m": 27.029283010116796,
   "min_gradient_pct": -9.616586658654569
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 28.845993473228013,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 48.0,
   "end_distance_m": 58.0,
   "start_elevation_m": 24.27630910760585,
   "end_elevation_m": 27.160908454928652,
   "min_gradient_pct": -6.370830919489663
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 25.599506808470736,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 448.0,
   "end_distance_m": 468.0,
   "start_elevation_m": 68.86046961360935,
   "end_elevation_m": 73.9803709753035,
   "min_gradient_pct": -3.8382407388198203
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 24.67943997030966,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 447.0,
   "end_distance_m": 472.0,
   "start_elevation_m": 68.63617212471961,
   "end_elevation_m": 74.80603211729702,
   "min_gradient_pct": -2.743795260864715
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 22.140533816755177,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 446.0,
   "end_distance_m": 496.0,
   "start_elevation_m": 68.46214092348762,
   "end_elevation_m": 79.53240783186521,
   "min_gradient_pct": 2.027391795024613
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 20.133038942308268,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 396.0,
   "end_distance_m": 496.0,
   "start_elevation_m": 59.399368889556946,
   "end_elevation_m": 79.53240783186521,
   "min_gradient_pct": 5.806514765746512
  }
 ],
 "shape": {
  "ascent_concentration": 0.381,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 160.0,
  "shape_class": "sustained"
 },
 "length_m": 606.3709669516949,
 "start_elevation_m": 19.027126238267645,
 "end_elevation_m": 86.5674163015269,
 "endpoint_gain_m": 67.54029006325926,
 "overall_gradient_pct": 11.138443913763387,
 "accumulated_ascent_m": 69.59305015957084,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 37.55686296921617,
   "start_distance_m": 52.0,
   "end_distance_m": 57.0,
   "midpoint_distance_m": 54.5,
   "start_elevation_m": 25.151439861655987,
   "end_elevation_m": 27.029283010116796,
   "start_xy": [
    459304.4060584378,
    4886599.544961514
   ],
   "end_xy": [
    459299.8301025184,
    4886597.52986166
   ]
  },
  "max_10m": {
   "gradient_pct": 28.845993473228013,
   "start_distance_m": 48.0,
   "end_distance_m": 58.0,
   "midpoint_distance_m": 53.0,
   "start_elevation_m": 24.27630910760585,
   "end_elevation_m": 27.160908454928652,
   "start_xy": [
    459308.0668231734,
    4886601.157041398
   ],
   "end_xy": [
    459298.91491133446,
    4886597.1268416885
   ]
  },
  "max_20m": {
   "gradient_pct": 25.599506808470736,
   "start_distance_m": 448.0,
   "end_distance_m": 468.0,
   "midpoint_distance_m": 458.0,
   "start_elevation_m": 68.86046961360935,
   "end_elevation_m": 73.9803709753035,
   "start_xy": [
    459002.8058642549,
    4886748.806965671
   ],
   "end_xy": [
    458986.8431688643,
    4886760.856544745
   ]
  },
  "max_25m": {
   "gradient_pct": 24.67943997030966,
   "start_distance_m": 447.0,
   "end_distance_m": 472.0,
   "midpoint_distance_m": 459.5,
   "start_elevation_m": 68.63617212471961,
   "end_elevation_m": 74.80603211729702,
   "start_xy": [
    459003.60399902443,
    4886748.2044867175
   ],
   "end_xy": [
    458983.57176447613,
    4886763.091652748
   ]
  },
  "max_50m": {
   "gradient_pct": 22.140533816755177,
   "start_distance_m": 446.0,
   "end_distance_m": 496.0,
   "midpoint_distance_m": 471.0,
   "start_elevation_m": 68.46214092348762,
   "end_elevation_m": 79.53240783186521,
   "start_xy": [
    459004.402133794,
    4886747.602007763
   ],
   "end_xy": [
    458960.0550594012,
    4886767.8837903105
   ]
  },
  "max_100m": {
   "gradient_pct": 20.133038942308268,
   "start_distance_m": 396.0,
   "end_distance_m": 496.0,
   "midpoint_distance_m": 446.0,
   "start_elevation_m": 59.399368889556946,
   "end_elevation_m": 79.53240783186521,
   "start_xy": [
    459048.5690526525,
    4886724.42178197
   ],
   "end_xy": [
    458960.0550594012,
    4886767.8837903105
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -9.616586658654569,
   "start_distance_m": 524.0,
   "end_distance_m": 529.0,
   "midpoint_distance_m": 526.5,
   "start_elevation_m": 82.8089193407968,
   "end_elevation_m": 82.32809000786408,
   "start_xy": [
    458932.6189034804,
    4886773.474617467
   ],
   "end_xy": [
    458927.71958992316,
    4886774.472979459
   ]
  },
  "min_10m": {
   "gradient_pct": -6.370830919489663,
   "start_distance_m": 582.0,
   "end_distance_m": 592.0,
   "midpoint_distance_m": 587.0,
   "start_elevation_m": 87.18851314913107,
   "end_elevation_m": 86.5514300571821,
   "start_xy": [
    458884.0570892993,
    4886757.560063887
   ],
   "end_xy": [
    458874.7937602053,
    4886753.992965949
   ]
  },
  "min_20m": {
   "gradient_pct": -3.8382407388198203,
   "start_distance_m": 582.0,
   "end_distance_m": 602.0,
   "midpoint_distance_m": 592.0,
   "start_elevation_m": 87.18851314913107,
   "end_elevation_m": 86.4208650013671,
   "start_xy": [
    458884.0570892993,
    4886757.560063887
   ],
   "end_xy": [
    458865.3422318211,
    4886750.726681944
   ]
  },
  "min_25m": {
   "gradient_pct": -2.743795260864715,
   "start_distance_m": 578.0,
   "end_distance_m": 603.0,
   "midpoint_distance_m": 590.5,
   "start_elevation_m": 87.10493593850276,
   "end_elevation_m": 86.41898712328658,
   "start_xy": [
    458886.8855807043,
    4886760.38842673
   ],
   "end_xy": [
    458864.39707898267,
    4886750.400053543
   ]
  },
  "min_50m": {
   "gradient_pct": 2.027391795024613,
   "start_distance_m": 556.0,
   "end_distance_m": 606.0,
   "midpoint_distance_m": 581.0,
   "start_elevation_m": 85.53946956254157,
   "end_elevation_m": 86.55316546005388,
   "start_xy": [
    458902.4422834317,
    4886775.944422367
   ],
   "end_xy": [
    458861.56162046734,
    4886749.420168342
   ]
  },
  "min_100m": {
   "gradient_pct": 5.806514765746512,
   "start_distance_m": 506.0,
   "end_distance_m": 606.0,
   "midpoint_distance_m": 556.0,
   "start_elevation_m": 80.74665069430736,
   "end_elevation_m": 86.55316546005388,
   "start_xy": [
    458950.25643228664,
    4886769.880514295
   ],
   "end_xy": [
    458861.56162046734,
    4886749.420168342
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 44.88067001107208,
   "start_distance_m": 53.0,
   "end_distance_m": 55.0,
   "midpoint_distance_m": 54.0,
   "start_elevation_m": 25.445050601259673,
   "end_elevation_m": 26.342664001481115,
   "start_xy": [
    459303.4908672539,
    4886599.141941544
   ],
   "end_xy": [
    459301.66048488615,
    4886598.335901601
   ]
  },
  "max_3m": {
   "gradient_pct": 42.34469958240581,
   "start_distance_m": 53.0,
   "end_distance_m": 56.0,
   "midpoint_distance_m": 54.5,
   "start_elevation_m": 25.445050601259673,
   "end_elevation_m": 26.715391588731848,
   "start_xy": [
    459303.4908672539,
    4886599.141941544
   ],
   "end_xy": [
    459300.74529370223,
    4886597.932881631
   ]
  }
 },
 "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": [
   "short_window_divergence"
  ],
  "extent": [
   "may_start_earlier"
  ]
 },
 "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_x45y489_ME_SouthCoastal_2020_A20.tif"
  ],
  "calculated_at": "2026-08-24T20:40:58+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_SouthCoastal_2020_A20 (collected 2020)",
  "elevation_tile_ids": [
   "x45y489"
  ],
  "climb_origin": "discovered",
  "notes": "Coarse pass: max 15.5% over 200 m (Terrain 50), gain 67.0 m over 606 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": "Jefferson",
  "county": "Maine"
 }
}