{
 "ocl_version": "0.1.0",
 "name": "Grover Road",
 "slug": "grover-road",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 43.95810960298547,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 3070.0,
   "end_distance_m": 3072.0,
   "start_elevation_m": 236.37933649002076,
   "end_elevation_m": 237.25849868208047,
   "min_gradient_pct": -28.35047934437256
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 41.31656528663162,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 3061.0,
   "end_distance_m": 3064.0,
   "start_elevation_m": 234.007765801829,
   "end_elevation_m": 235.24726276042796,
   "min_gradient_pct": -25.524216804862476
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 33.37306642005501,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 3068.0,
   "end_distance_m": 3073.0,
   "start_elevation_m": 235.8443237755499,
   "end_elevation_m": 237.51297709655265,
   "min_gradient_pct": -17.834195807466244
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 28.5610779723595,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 3062.0,
   "end_distance_m": 3072.0,
   "start_elevation_m": 234.40239088484452,
   "end_elevation_m": 237.25849868208047,
   "min_gradient_pct": -13.082172871769728
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 22.455202309139963,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 3281.0,
   "end_distance_m": 3301.0,
   "start_elevation_m": 265.9793977665934,
   "end_elevation_m": 270.4704382284214,
   "min_gradient_pct": -10.999144215360559
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.24102375316147,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 3277.0,
   "end_distance_m": 3302.0,
   "start_elevation_m": 265.53376023774155,
   "end_elevation_m": 270.5940161760319,
   "min_gradient_pct": -10.642254453522469
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 17.599076066683665,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 3169.0,
   "end_distance_m": 3219.0,
   "start_elevation_m": 250.9878957246164,
   "end_elevation_m": 259.78743375795824,
   "min_gradient_pct": -9.063135465901325
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.093337104940247,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 3120.0,
   "end_distance_m": 3220.0,
   "start_elevation_m": 242.7872203908281,
   "end_elevation_m": 259.88055749576836,
   "min_gradient_pct": -6.40086063102919
  }
 ],
 "shape": {
  "ascent_concentration": 0.393,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 141.0,
  "shape_class": "sustained"
 },
 "length_m": 3336.366563588892,
 "start_elevation_m": 154.30034793716487,
 "end_elevation_m": 273.7400533178862,
 "endpoint_gain_m": 119.4397053807213,
 "overall_gradient_pct": 3.5799335326104385,
 "accumulated_ascent_m": 163.26798096328272,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 33.37306642005501,
   "start_distance_m": 3068.0,
   "end_distance_m": 3073.0,
   "midpoint_distance_m": 3070.5,
   "start_elevation_m": 235.8443237755499,
   "end_elevation_m": 237.51297709655265,
   "start_xy": [
    360393.6584647004,
    4893920.467206353
   ],
   "end_xy": [
    360389.56842205056,
    4893923.343236334
   ]
  },
  "max_10m": {
   "gradient_pct": 28.5610779723595,
   "start_distance_m": 3062.0,
   "end_distance_m": 3072.0,
   "midpoint_distance_m": 3067.0,
   "start_elevation_m": 234.40239088484452,
   "end_elevation_m": 237.25849868208047,
   "start_xy": [
    360398.5669406013,
    4893917.01657476
   ],
   "end_xy": [
    360390.3865247288,
    4893922.768164158
   ]
  },
  "max_20m": {
   "gradient_pct": 22.455202309139963,
   "start_distance_m": 3281.0,
   "end_distance_m": 3301.0,
   "midpoint_distance_m": 3291.0,
   "start_elevation_m": 265.9793977665934,
   "end_elevation_m": 270.4704382284214,
   "start_xy": [
    360219.4151527688,
    4894042.975425621
   ],
   "end_xy": [
    360203.0541808545,
    4894054.478405879
   ]
  },
  "max_25m": {
   "gradient_pct": 20.24102375316147,
   "start_distance_m": 3277.0,
   "end_distance_m": 3302.0,
   "midpoint_distance_m": 3289.5,
   "start_elevation_m": 265.53376023774155,
   "end_elevation_m": 270.5940161760319,
   "start_xy": [
    360222.6875634819,
    4894040.675136916
   ],
   "end_xy": [
    360202.2362610284,
    4894055.053737956
   ]
  },
  "max_50m": {
   "gradient_pct": 17.599076066683665,
   "start_distance_m": 3169.0,
   "end_distance_m": 3219.0,
   "midpoint_distance_m": 3194.0,
   "start_elevation_m": 250.9878957246164,
   "end_elevation_m": 259.78743375795824,
   "start_xy": [
    360311.0363029962,
    4893978.558320021
   ],
   "end_xy": [
    360270.1339861365,
    4894007.315931522
   ]
  },
  "max_100m": {
   "gradient_pct": 17.093337104940247,
   "start_distance_m": 3120.0,
   "end_distance_m": 3220.0,
   "midpoint_distance_m": 3170.0,
   "start_elevation_m": 242.7872203908281,
   "end_elevation_m": 259.88055749576836,
   "start_xy": [
    360351.12022983073,
    4893950.3753714515
   ],
   "end_xy": [
    360269.31617118954,
    4894007.891412672
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -17.834195807466244,
   "start_distance_m": 2735.0,
   "end_distance_m": 2740.0,
   "midpoint_distance_m": 2737.5,
   "start_elevation_m": 226.19269725301132,
   "end_elevation_m": 225.300987462638,
   "start_xy": [
    360684.4204559559,
    4893765.95834667
   ],
   "end_xy": [
    360679.57640378526,
    4893767.197360022
   ]
  },
  "min_10m": {
   "gradient_pct": -13.082172871769728,
   "start_distance_m": 2734.0,
   "end_distance_m": 2744.0,
   "midpoint_distance_m": 2739.0,
   "start_elevation_m": 226.22470444902078,
   "end_elevation_m": 224.9164871618438,
   "start_xy": [
    360685.38919286086,
    4893765.710256374
   ],
   "end_xy": [
    360675.70108852617,
    4893768.188283105
   ]
  },
  "min_20m": {
   "gradient_pct": -10.999144215360559,
   "start_distance_m": 2459.0,
   "end_distance_m": 2479.0,
   "midpoint_distance_m": 2469.0,
   "start_elevation_m": 235.27475841475317,
   "end_elevation_m": 233.07492957168105,
   "start_xy": [
    360953.87431229133,
    4893805.34692487
   ],
   "end_xy": [
    360934.47931209893,
    4893800.464924822
   ]
  },
  "min_25m": {
   "gradient_pct": -10.642254453522469,
   "start_distance_m": 2454.0,
   "end_distance_m": 2479.0,
   "midpoint_distance_m": 2466.5,
   "start_elevation_m": 235.73549318506167,
   "end_elevation_m": 233.07492957168105,
   "start_xy": [
    360958.7229365419,
    4893806.567924243
   ],
   "end_xy": [
    360934.47931209893,
    4893800.464924822
   ]
  },
  "min_50m": {
   "gradient_pct": -9.063135465901325,
   "start_distance_m": 2451.0,
   "end_distance_m": 2501.0,
   "midpoint_distance_m": 2476.0,
   "start_elevation_m": 236.03304184141035,
   "end_elevation_m": 231.5014741084597,
   "start_xy": [
    360961.6322650567,
    4893807.299912976
   ],
   "end_xy": [
    360913.14477200375,
    4893795.094882854
   ]
  },
  "min_100m": {
   "gradient_pct": -6.40086063102919,
   "start_distance_m": 2423.0,
   "end_distance_m": 2523.0,
   "midpoint_distance_m": 2473.0,
   "start_elevation_m": 236.87441085183565,
   "end_elevation_m": 230.47355022080646,
   "start_xy": [
    360988.7853065708,
    4893814.134550164
   ],
   "end_xy": [
    360891.8101943631,
    4893789.724989098
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 43.95810960298547,
   "start_distance_m": 3070.0,
   "end_distance_m": 3072.0,
   "midpoint_distance_m": 3071.0,
   "start_elevation_m": 236.37933649002076,
   "end_elevation_m": 237.25849868208047,
   "start_xy": [
    360392.02225934376,
    4893921.617350706
   ],
   "end_xy": [
    360390.3865247288,
    4893922.768164158
   ]
  },
  "max_3m": {
   "gradient_pct": 41.31656528663162,
   "start_distance_m": 3061.0,
   "end_distance_m": 3064.0,
   "midpoint_distance_m": 3062.5,
   "start_elevation_m": 234.007765801829,
   "end_elevation_m": 235.24726276042796,
   "start_xy": [
    360399.3850432798,
    4893916.441502584
   ],
   "end_xy": [
    360396.9309182941,
    4893918.166979294
   ]
  }
 },
 "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_x36y490_ME_WesternMtns_B24.tif"
  ],
  "calculated_at": "2026-09-03T17:13:23+00:00",
  "road_source": "/mnt/HC_Volume_106727764/site-corpus-fresh/us/grover-road/grover-road.geojson",
  "run_id": "canopy-all-260903",
  "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": [
   "x36y490"
  ],
  "climb_origin": "discovered",
  "canopy_check": "unavailable \u2014 EPT corridor failed: NH_Umbagog_2016: no corridor points fetched; 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.html"
 },
 "area": {
  "place": "Waterford",
  "county": "Maine"
 }
}