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  "calculated_at": "2026-08-24T23:03:34+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
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  "osm_snapshot": "2026-08-21T20:21:11Z",
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  "elevation_provider": "USGS 3DEP (The National Map)",
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  "notes": "Coarse pass: max 15.2% over 200 m (Terrain 50), gain 31.9 m over 366 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 EPT corridor failed: VT_Statewide_2_A23: no EPT nodes intersect the corridor; VT_Statewide_1_A23: no EPT nodes intersect the corridor",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing.html"
 },
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  "county": "Vermont"
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}