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  "calculated_at": "2026-08-22T08:45:32+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
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  "osm_timestamps": {
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  "osm_pbf_path": "data/cache/pbf/vermont-260821.osm.pbf",
  "osm_snapshot": "2026-08-21T20:21:11Z",
  "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, VT_Statewide_A23 (collected 2023)",
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  "notes": "VT-73 Brandon Mountain Road from the Rochester valley \u2014 REBUILT 2026-08-22: the founding seed (ways 1314047808/09) was actually the west side's final ramp (started 1,017 m WEST of GNIS 'Brandon Gap'); this entry now follows the true east approach (single 8 km asphalt way per VTrans, GNIS-anchored at the gap). Valley-flat base likely \u2014 check suggested base cut after batch.",
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  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing.html"
 },
 "area": {
  "place": "Vermont",
  "county": ""
 }
}