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Route 6 Cutoff

7115.8 m · net rise 251.5 m · total ascent 284.2 m · overall 3.5% · confidence: good · Northeast Somerset · Maine ·

Shape: sustained — 32% of the climbing sits in a quarter of the distance; longest continuous stretch at 10%+ is 19 m.

Found purely from mapping and LiDAR data, and not yet matched against books, race records or lists — it may be well known to locals under a name we've never heard. It was cross-checked against the OS road network, surface models and map tags, but a discovery can still be an artifact of the terrain model or the map. Treat it as a well-evidenced hypothesis until someone has ridden it. If you know this road, tell us what you found — photographs, corrections and local knowledge all welcome; the map links below let you scout it first.

Gradient ladder what do windows mean?

WindowMaximumLocated at
2 m (diagnostic)29%3287–3289 munder overhead cover terrain reads 87.4% at 2365–2367 m across a structure — excluded
3 m (diagnostic)21%3287–3290 munder overhead cover terrain reads 75.9% at 2365–2368 m across a structure — excluded
5 m14%3287–3292 munder overhead cover terrain reads 62.1% at 2365–2370 m across a structure — excluded
10 m10%4645–4655 munder overhead cover terrain reads 40.9% at 2364–2374 m across a structure — excluded
20 m9.8%2831–2851 munder overhead cover terrain reads 22.4% at 2363–2383 m across a structure — excluded
25 m9.8%2826–2851 munder overhead cover terrain reads 18.7% at 2363–2388 m across a structure — excluded
50 m9.4%2813–2863 munder overhead cover terrain reads 12.1% at 2364–2414 m across a structure — excluded
100 m9.0%2765–2865 m

Map

Check this route yourself: Google Maps route via their router · Street View at the base where coverage exists · geojson.io our exact measured line · OpenTopoMap

This climb's data: OCL JSON — the full gradient ladder, quality flags and provenance in the OpenClimb Ladder format.

Measured, not vetted. This page records what the laser record shows about the road's shape — nothing more. Nobody has necessarily ridden or inspected this road for the survey, and a page here is not a recommendation and no guarantee that the road is open, surfaced, rideable or safe. Gates, private sections, missing rights of way and hazards do not show up in elevation data. Check access and conditions on the ground and make your own judgment.

Ridden it, or know better? Submit data for this climb no account needed ·

  © OpenStreetMap contributors · topo tiles © OpenTopoMap (CC-BY-SA) · vector tiles OpenFreeMap

Route 6 Cutoff LiDAR hillshade map with contours

Profile

Route 6 Cutoff elevation profile Route 6 Cutoff rolling gradient profile

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_x40y505_ME_WesternMtns_B24.tif",
    "data/cache/usa/me/USGS_1M_19_x41y505_ME_WesternMtns_B24.tif",
    "data/cache/usa/me/USGS_1M_19_x41y506_ME_WesternMtns_B24.tif"
  ],
  "calculated_at": "2026-08-24T21:03:12+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-5-260824",
  "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_WesternMtns_B24 (collected 2024)",
  "elevation_tile_ids": [
    "x40y505",
    "x41y505",
    "x41y506"
  ],
  "climb_origin": "discovered",
  "notes": "Coarse pass: max 8.1% over 200 m (Terrain 50), gain 185.4 m over 5347 m way. EXTENDED by graph walk: +0 segment(s) at base, +1 at top (stop: base=no_descending_continuation, top=no_ascending_continuation; min_avg=2.0%). Review before adopting. ADOPTED (NE wave 1, 2026-08-25): big-gain. 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"
}