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  "road_source": "OpenStreetMap (local PBF extract)",
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  "elevation_provider": "Environment Agency",
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  "notes": "Coarse pass: max 9.9% over 200 m (Terrain 50), gain 31.3 m over 623 m way. EXTENDED by graph walk: +5 segment(s) at base, +4 at top (stop: base=no_descending_continuation, top=no_ascending_continuation; min_avg=2.0%). Review before adopting. DEDUPE: absorbed 4 overlapping proposal(s): discovered-lane-51-2212-3-8363, lynmouth-hill, lynmouth-hill-2, station-hill ADOPTED (England launch slice 2026-08-16): endurance."
 },
 "area": {
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  "county": "Devon"
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}