{"id": "88e4ca49-27c3-4fdf-b855-eb1c34dd597b", "slug": "black-marsh-trail", "name": "Black Marsh Trail", "states": ["MD"], "length_km": 1.02, "rail_km": 1.02, "surface": "crushed_stone", "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": [{"lat": 39.22043, "lon": -76.43066, "osm": "way/83229190", "name": null, "water": false, "parking": true, "restrooms": false}], "facts": null, "photos": null, "geometry": {"type": "LineString", "coordinates": [[-76.4195418, 39.218736], [-76.4197661, 39.2191128], [-76.4200652, 39.2195066], [-76.4204524, 39.2199169], [-76.4207373, 39.2201364], [-76.4209288, 39.22028], [-76.4214724, 39.2206051], [-76.4218748, 39.2207838], [-76.4220609, 39.2208559], [-76.4221043, 39.2208727], [-76.4223897, 39.2209833], [-76.422658, 39.221062], [-76.4231408, 39.2211495], [-76.4236591, 39.2212177], [-76.4237094, 39.2212243], [-76.4241278, 39.2212493], [-76.4245892, 39.2212576], [-76.4254881, 39.2212126], [-76.4255869, 39.2212077], [-76.4281141, 39.2211141], [-76.4284105, 39.2210933], [-76.4288111, 39.2210725], [-76.429073, 39.2210653], [-76.4298379, 39.2210396], [-76.4298804, 39.2210388], [-76.4300046, 39.221032]]}}