{
 "ocl_version": "0.1.0",
 "name": "Dean Road",
 "slug": "dean-road",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 38.30877948263094,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 249.0,
   "end_distance_m": 251.0,
   "start_elevation_m": 265.7856602432625,
   "end_elevation_m": 266.5518358329151,
   "min_gradient_pct": -19.64146254588286
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 37.181605446166564,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 249.0,
   "end_distance_m": 252.0,
   "start_elevation_m": 265.7856602432625,
   "end_elevation_m": 266.9011084066475,
   "min_gradient_pct": -17.23444476414026
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 33.808218439234,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 247.0,
   "end_distance_m": 252.0,
   "start_elevation_m": 265.2106974846858,
   "end_elevation_m": 266.9011084066475,
   "min_gradient_pct": -7.7915380066315265
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 27.633772157691965,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 246.0,
   "end_distance_m": 256.0,
   "start_elevation_m": 264.9637158603556,
   "end_elevation_m": 267.7270930761248,
   "min_gradient_pct": -3.86325359494208
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 22.79488190266818,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 235.0,
   "end_distance_m": 255.0,
   "start_elevation_m": 263.00305579568544,
   "end_elevation_m": 267.5620321762191,
   "min_gradient_pct": -1.2950124483467107
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 22.320506181588144,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 228.0,
   "end_distance_m": 253.0,
   "start_elevation_m": 261.556574291889,
   "end_elevation_m": 267.136700837286,
   "min_gradient_pct": -0.5585109968760662
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 18.91322791759694,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 206.0,
   "end_distance_m": 256.0,
   "start_elevation_m": 258.2704791173263,
   "end_elevation_m": 267.7270930761248,
   "min_gradient_pct": 0.8150050001737554
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 15.849234300515377,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 215.0,
   "end_distance_m": 315.0,
   "start_elevation_m": 259.29280580319437,
   "end_elevation_m": 275.14204010370975,
   "min_gradient_pct": 1.4310467425493698
  }
 ],
 "shape": {
  "ascent_concentration": 0.468,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 68.0,
  "shape_class": "stepped"
 },
 "length_m": 837.000000000159,
 "start_elevation_m": 243.7239258881843,
 "end_elevation_m": 306.2778343136332,
 "endpoint_gain_m": 62.553908425448896,
 "overall_gradient_pct": 7.47358523601398,
 "accumulated_ascent_m": 65.03326861035771,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 33.808218439234,
   "start_distance_m": 247.0,
   "end_distance_m": 252.0,
   "midpoint_distance_m": 249.5,
   "start_elevation_m": 265.2106974846858,
   "end_elevation_m": 266.9011084066475,
   "start_xy": [
    401258.22286292753,
    4947756.447573895
   ],
   "end_xy": [
    401253.26259656204,
    4947755.818481227
   ]
  },
  "max_10m": {
   "gradient_pct": 27.633772157691965,
   "start_distance_m": 246.0,
   "end_distance_m": 256.0,
   "midpoint_distance_m": 251.0,
   "start_elevation_m": 264.9637158603556,
   "end_elevation_m": 267.7270930761248,
   "start_xy": [
    401259.2149162006,
    4947756.573392428
   ],
   "end_xy": [
    401249.30378010205,
    4947755.248280307
   ]
  },
  "max_20m": {
   "gradient_pct": 22.79488190266818,
   "start_distance_m": 235.0,
   "end_distance_m": 255.0,
   "midpoint_distance_m": 245.0,
   "start_elevation_m": 263.00305579568544,
   "end_elevation_m": 267.5620321762191,
   "start_xy": [
    401270.1275022047,
    4947757.957396295
   ],
   "end_xy": [
    401250.29212479043,
    4947755.400512949
   ]
  },
  "max_25m": {
   "gradient_pct": 22.320506181588144,
   "start_distance_m": 228.0,
   "end_distance_m": 253.0,
   "midpoint_distance_m": 240.5,
   "start_elevation_m": 261.556574291889,
   "end_elevation_m": 267.136700837286,
   "start_xy": [
    401277.0718751163,
    4947758.838126029
   ],
   "end_xy": [
    401252.27054328896,
    4947755.6926626945
   ]
  },
  "max_50m": {
   "gradient_pct": 18.91322791759694,
   "start_distance_m": 206.0,
   "end_distance_m": 256.0,
   "midpoint_distance_m": 231.0,
   "start_elevation_m": 258.2704791173263,
   "end_elevation_m": 267.7270930761248,
   "start_xy": [
    401298.8970471244,
    4947761.606133764
   ],
   "end_xy": [
    401249.30378010205,
    4947755.248280307
   ]
  },
  "max_100m": {
   "gradient_pct": 15.849234300515377,
   "start_distance_m": 215.0,
   "end_distance_m": 315.0,
   "midpoint_distance_m": 265.0,
   "start_elevation_m": 259.29280580319437,
   "end_elevation_m": 275.14204010370975,
   "start_xy": [
    401289.96856766654,
    4947760.473766963
   ],
   "end_xy": [
    401193.43455418386,
    4947738.0898297
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -7.7915380066315265,
   "start_distance_m": 617.0,
   "end_distance_m": 622.0,
   "midpoint_distance_m": 619.5,
   "start_elevation_m": 299.9131233404407,
   "end_elevation_m": 299.5235464401091,
   "start_xy": [
    400971.4609402412,
    4947535.030191349
   ],
   "end_xy": [
    400967.98539038055,
    4947531.435674251
   ]
  },
  "min_10m": {
   "gradient_pct": -3.86325359494208,
   "start_distance_m": 616.0,
   "end_distance_m": 626.0,
   "midpoint_distance_m": 621.0,
   "start_elevation_m": 299.9564173221469,
   "end_elevation_m": 299.57009196265267,
   "start_xy": [
    400972.1560502133,
    4947535.749094768
   ],
   "end_xy": [
    400965.204950492,
    4947528.560060573
   ]
  },
  "min_20m": {
   "gradient_pct": -1.2950124483467107,
   "start_distance_m": 615.0,
   "end_distance_m": 635.0,
   "midpoint_distance_m": 625.0,
   "start_elevation_m": 299.94441217331337,
   "end_elevation_m": 299.685409683644,
   "start_xy": [
    400972.85116018547,
    4947536.467998188
   ],
   "end_xy": [
    400958.94896074285,
    4947522.089929797
   ]
  },
  "min_25m": {
   "gradient_pct": -0.5585109968760662,
   "start_distance_m": 615.0,
   "end_distance_m": 640.0,
   "midpoint_distance_m": 627.5,
   "start_elevation_m": 299.94441217331337,
   "end_elevation_m": 299.80478442409435,
   "start_xy": [
    400972.85116018547,
    4947536.467998188
   ],
   "end_xy": [
    400955.47341088223,
    4947518.495412699
   ]
  },
  "min_50m": {
   "gradient_pct": 0.8150050001737554,
   "start_distance_m": 617.0,
   "end_distance_m": 667.0,
   "midpoint_distance_m": 642.0,
   "start_elevation_m": 299.9131233404407,
   "end_elevation_m": 300.32062584052755,
   "start_xy": [
    400971.4609402412,
    4947535.030191349
   ],
   "end_xy": [
    400931.3256722839,
    4947506.477499164
   ]
  },
  "min_100m": {
   "gradient_pct": 1.4310467425493698,
   "start_distance_m": 603.0,
   "end_distance_m": 703.0,
   "midpoint_distance_m": 653.0,
   "start_elevation_m": 299.65377869042345,
   "end_elevation_m": 301.0848254329728,
   "start_xy": [
    400981.192479851,
    4947545.094839223
   ],
   "end_xy": [
    400899.0037054431,
    4947490.625355475
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 38.30877948263094,
   "start_distance_m": 249.0,
   "end_distance_m": 251.0,
   "midpoint_distance_m": 250.0,
   "start_elevation_m": 265.7856602432625,
   "end_elevation_m": 266.5518358329151,
   "start_xy": [
    401256.2387563813,
    4947756.195936828
   ],
   "end_xy": [
    401254.2546498352,
    4947755.944299761
   ]
  },
  "max_3m": {
   "gradient_pct": 37.181605446166564,
   "start_distance_m": 249.0,
   "end_distance_m": 252.0,
   "midpoint_distance_m": 250.5,
   "start_elevation_m": 265.7856602432625,
   "end_elevation_m": 266.9011084066475,
   "start_xy": [
    401256.2387563813,
    4947756.195936828
   ],
   "end_xy": [
    401253.26259656204,
    4947755.818481227
   ]
  }
 },
 "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_x40y495_ME_WesternMtns_B24.tif"
  ],
  "calculated_at": "2026-09-05T00:12:13+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": "hunt-wave2-260905",
  "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": [
   "x40y495"
  ],
  "route_summit_trim_m": 1913.1,
  "route_summit_trim_loss_m": 61.2,
  "climb_origin": "discovered",
  "canopy_check": "unavailable \u2014 EPT corridor failed: USGS_LPC_ME_NRCS_Lot4_2013_LAS_2015: no corridor points fetched; ME_SouthCentral_1_B22: no corridor points fetched",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Temple",
  "county": "Maine"
 }
}