{
 "ocl_version": "0.1.0",
 "name": "Mont View Drive",
 "slug": "mont-view-drive",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 22.514341663637083,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 187.0,
   "end_distance_m": 189.0,
   "start_elevation_m": 244.4648696004058,
   "end_elevation_m": 244.91515643367853,
   "min_gradient_pct": -6.997046791661887
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 21.58581215452197,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 186.0,
   "end_distance_m": 189.0,
   "start_elevation_m": 244.26758206904287,
   "end_elevation_m": 244.91515643367853,
   "min_gradient_pct": -6.255617974767347
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 21.234341771771597,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 187.0,
   "end_distance_m": 192.0,
   "start_elevation_m": 244.4648696004058,
   "end_elevation_m": 245.52658668899437,
   "min_gradient_pct": -5.747847023695272
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 20.518330537548763,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 202.0,
   "end_distance_m": 212.0,
   "start_elevation_m": 247.48038722311153,
   "end_elevation_m": 249.5322202768664,
   "min_gradient_pct": -5.380220870608525
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.24313313465072,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 184.0,
   "end_distance_m": 204.0,
   "start_elevation_m": 243.85801597946738,
   "end_elevation_m": 247.90664260639753,
   "min_gradient_pct": -4.67180731325783
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.314150739105116,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 184.0,
   "end_distance_m": 209.0,
   "start_elevation_m": 243.85801597946738,
   "end_elevation_m": 248.93655366424366,
   "min_gradient_pct": -4.0524178597679565
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.432185250266514,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 176.0,
   "end_distance_m": 226.0,
   "start_elevation_m": 242.39649192321957,
   "end_elevation_m": 252.11258454835283,
   "min_gradient_pct": -2.110869634510209
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.27801960080609,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 163.0,
   "end_distance_m": 263.0,
   "start_elevation_m": 240.5330955056778,
   "end_elevation_m": 257.8111151064839,
   "min_gradient_pct": -1.0144042046460129
  }
 ],
 "shape": {
  "ascent_concentration": 0.335,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 138.0,
  "shape_class": "sustained"
 },
 "length_m": 962.6640071209108,
 "start_elevation_m": 239.7481187299707,
 "end_elevation_m": 318.50056826610285,
 "endpoint_gain_m": 78.75244953613213,
 "overall_gradient_pct": 8.180678715896024,
 "accumulated_ascent_m": 80.82738685592653,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 21.234341771771597,
   "start_distance_m": 187.0,
   "end_distance_m": 192.0,
   "midpoint_distance_m": 189.5,
   "start_elevation_m": 244.4648696004058,
   "end_elevation_m": 245.52658668899437,
   "start_xy": [
    263261.0943604331,
    4889394.457395236
   ],
   "end_xy": [
    263256.36718771653,
    4889396.08645482
   ]
  },
  "max_10m": {
   "gradient_pct": 20.518330537548763,
   "start_distance_m": 202.0,
   "end_distance_m": 212.0,
   "midpoint_distance_m": 207.0,
   "start_elevation_m": 247.48038722311153,
   "end_elevation_m": 249.5322202768664,
   "start_xy": [
    263246.9128352108,
    4889399.344553442
   ],
   "end_xy": [
    263237.61868276895,
    4889402.97727779
   ]
  },
  "max_20m": {
   "gradient_pct": 20.24313313465072,
   "start_distance_m": 184.0,
   "end_distance_m": 204.0,
   "midpoint_distance_m": 194.0,
   "start_elevation_m": 243.85801597946738,
   "end_elevation_m": 247.90664260639753,
   "start_xy": [
    263263.9308701449,
    4889393.480558491
   ],
   "end_xy": [
    263245.02176568535,
    4889399.995594489
   ]
  },
  "max_25m": {
   "gradient_pct": 20.314150739105116,
   "start_distance_m": 184.0,
   "end_distance_m": 209.0,
   "midpoint_distance_m": 196.5,
   "start_elevation_m": 243.85801597946738,
   "end_elevation_m": 248.93655366424366,
   "start_xy": [
    263263.9308701449,
    4889393.480558491
   ],
   "end_xy": [
    263240.2950090709,
    4889401.625671787
   ]
  },
  "max_50m": {
   "gradient_pct": 19.432185250266514,
   "start_distance_m": 176.0,
   "end_distance_m": 226.0,
   "midpoint_distance_m": 201.0,
   "start_elevation_m": 242.39649192321957,
   "end_elevation_m": 252.11258454835283,
   "start_xy": [
    263271.4944498984,
    4889390.874364373
   ],
   "end_xy": [
    263225.27638361073,
    4889409.585427365
   ]
  },
  "max_100m": {
   "gradient_pct": 17.27801960080609,
   "start_distance_m": 163.0,
   "end_distance_m": 263.0,
   "midpoint_distance_m": 213.0,
   "start_elevation_m": 240.5330955056778,
   "end_elevation_m": 257.8111151064839,
   "start_xy": [
    263283.58362889104,
    4889386.098178258
   ],
   "end_xy": [
    263195.83571636165,
    4889431.924386372
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -5.747847023695272,
   "start_distance_m": 107.0,
   "end_distance_m": 112.0,
   "midpoint_distance_m": 109.5,
   "start_elevation_m": 239.71877446624742,
   "end_elevation_m": 239.43138211506266,
   "start_xy": [
    263337.1716820895,
    4889384.364789674
   ],
   "end_xy": [
    263332.9804885114,
    4889381.671951631
   ]
  },
  "min_10m": {
   "gradient_pct": -5.380220870608525,
   "start_distance_m": 103.0,
   "end_distance_m": 113.0,
   "midpoint_distance_m": 108.0,
   "start_elevation_m": 239.89987046702058,
   "end_elevation_m": 239.36184837995972,
   "start_xy": [
    263340.07559064333,
    4889387.115664411
   ],
   "end_xy": [
    263332.1167096104,
    4889381.168080606
   ]
  },
  "min_20m": {
   "gradient_pct": -4.67180731325783,
   "start_distance_m": 101.0,
   "end_distance_m": 121.0,
   "midpoint_distance_m": 111.0,
   "start_elevation_m": 240.00267748528887,
   "end_elevation_m": 239.0683160226373,
   "start_xy": [
    263341.514556116,
    4889388.504563597
   ],
   "end_xy": [
    263324.5792896719,
    4889378.566733584
   ]
  },
  "min_25m": {
   "gradient_pct": -4.0524178597679565,
   "start_distance_m": 97.0,
   "end_distance_m": 122.0,
   "midpoint_distance_m": 109.5,
   "start_elevation_m": 240.07159597881122,
   "end_elevation_m": 239.05849151386923,
   "start_xy": [
    263343.67683402746,
    4889391.869741991
   ],
   "end_xy": [
    263323.5835273937,
    4889378.474769069
   ]
  },
  "min_50m": {
   "gradient_pct": -2.110869634510209,
   "start_distance_m": 89.0,
   "end_distance_m": 139.0,
   "midpoint_distance_m": 114.0,
   "start_elevation_m": 240.0737021673694,
   "end_elevation_m": 239.0182673501143,
   "start_xy": [
    263348.00117596186,
    4889398.6002738625
   ],
   "end_xy": [
    263306.77174442436,
    4889380.038416935
   ]
  },
  "min_100m": {
   "gradient_pct": -1.0144042046460129,
   "start_distance_m": 35.0,
   "end_distance_m": 135.0,
   "midpoint_distance_m": 85.0,
   "start_elevation_m": 240.03095707403935,
   "end_elevation_m": 239.01655286939334,
   "start_xy": [
    263376.4679020165,
    4889444.475832886
   ],
   "end_xy": [
    263310.71557641117,
    4889379.37044294
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 22.514341663637083,
   "start_distance_m": 187.0,
   "end_distance_m": 189.0,
   "midpoint_distance_m": 188.0,
   "start_elevation_m": 244.4648696004058,
   "end_elevation_m": 244.91515643367853,
   "start_xy": [
    263261.0943604331,
    4889394.457395236
   ],
   "end_xy": [
    263259.2035932317,
    4889395.109314928
   ]
  },
  "max_3m": {
   "gradient_pct": 21.58581215452197,
   "start_distance_m": 186.0,
   "end_distance_m": 189.0,
   "midpoint_distance_m": 187.5,
   "start_elevation_m": 244.26758206904287,
   "end_elevation_m": 244.91515643367853,
   "start_xy": [
    263262.04009779886,
    4889394.13246323
   ],
   "end_xy": [
    263259.2035932317,
    4889395.109314928
   ]
  }
 },
 "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": {
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.174,
   "obstruction_max_height_m": 27.97,
   "flagged_windows_m": [
    50,
    100
   ]
  },
  "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/nh/USGS_one_meter_x26y489_NH_CT_RiverNorthL6_2015.tif"
  ],
  "calculated_at": "2026-09-03T19:02:46+00:00",
  "road_source": "/mnt/HC_Volume_106727764/site-corpus-fresh/us/mont-view-drive/mont-view-drive.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, NH_CT_RiverNorthL6_2015 (collected 2015)",
  "elevation_tile_ids": [
   "x26y489"
  ],
  "climb_origin": "discovered",
  "canopy_source": {
   "kind": "ept_corridor_max_return",
   "ept_source": "https://usgs-lidar-public.s3-us-west-2.amazonaws.com/USGS_LPC_CT_River_Lot6_Winnipesaulee_2015_LAS_2017",
   "ept_crs": "EPSG:3857",
   "station_coverage": 0.973,
   "cell_ground_m": 1.0,
   "nodes_failed": 0
  },
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing.html"
 },
 "area": {
  "place": "Haverhill",
  "county": "New Hampshire"
 }
}