{"id": "7bf1e25f-9353-4d03-b08a-936fe55d8a25", "slug": "cartwright-tunnel", "name": "Cartwright Tunnel", "states": ["ND"], "length_km": 0.45, "rail_km": 0.45, "surface": "dirt", "status": "unknown", "kind": "rail", "managing_org": null, "operator": null, "website": null, "osm_relation_id": null, "description": null, "osm_description": null, "wikipedia": null, "wikidata": null, "last_verified": null, "confidence": null, "refs": [{"url": "https://www.openstreetmap.org/", "kind": "osm", "title": "OpenStreetMap ways for this trail", "license": "ODbL", "accessed": "2026-10-12", "publisher": "OpenStreetMap contributors"}], "cite": {"name": [1], "rail_km": [1], "surface": [1], "geometry": [1], "length_km": [1]}, "trailheads": null, "facts": null, "photos": null, "geometry": {"type": "LineString", "coordinates": [[-103.956708, 47.858565], [-103.9573359, 47.8587465], [-103.9579809, 47.8589052], [-103.9587119, 47.8590505], [-103.9594345, 47.8591443], [-103.96007, 47.8592134], [-103.9607343, 47.8592416], [-103.961293, 47.8592274], [-103.9617233, 47.8592086], [-103.9620915, 47.8591781], [-103.9625133, 47.8591293]]}}