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  "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, MA_Western_B24 (collected 2023-24)",
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  "structure_own_ways": "none \u2014 the route carried no way list and no mapped way runs along it; own decks unmasked",
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   "why": "valley-crossing extent re-measure 2026-09-22: low-to-summit (416.0 m -> 1981.0 m)",
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  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
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  "county": "Massachusetts"
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}