{"id": "736a178b-c8c6-4ee3-a363-70f2947b70db", "slug": "old-stone-arch-nature-trail", "name": "Old Stone Arch Nature Trail", "states": ["IA"], "length_km": 6.22, "rail_km": 4.7, "surface": "paved", "status": "unknown", "kind": "greenway", "managing_org": null, "operator": null, "website": null, "osm_relation_id": 15972419, "description": null, "osm_description": null, "wikipedia": null, "wikidata": null, "last_verified": null, "confidence": null, "refs": [{"url": "https://www.openstreetmap.org/relation/15972419", "kind": "osm", "title": "OpenStreetMap relation 15972419", "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": "MultiLineString", "coordinates": [[[-95.4518601, 41.5001233], [-95.4519684, 41.5000611], [-95.4520781, 41.5000169], [-95.4528825, 41.4998252], [-95.4534464, 41.4996851], [-95.4542593, 41.4994544], [-95.4544013, 41.4994302], [-95.4546741, 41.499426], [-95.4552676, 41.4994534], [-95.4568483, 41.4995987], [-95.4570199, 41.4995903], [-95.4576471, 41.4995061], [-95.4584515, 41.4994407], [-95.4587637, 41.4994429], [-95.4589493, 41.4994808], [-95.4590393, 41.4995503], [-95.459059, 41.4996135], [-95.4590478, 41.499674], [-95.4590323, 41.4997182], [-95.4589957, 41.4997759], [-95.4582992, 41.5006086], [-95.4576349, 41.5014278], [-95.4571974, 41.502113], [-95.4567837, 41.5027713], [-95.4566365, 41.5029888], [-95.4565093, 41.503245], [-95.4563342, 41.5037216], [-95.4562507, 41.5038884], [-95.4561234, 41.5040791], [-95.4559802, 41.5043353], [-95.4558609, 41.5045378], [-95.4557434, 41.5046894], [-95.4556805, 41.5048489], [-95.4556077, 41.5052358], [-95.4554586, 41.5057706], [-95.4553922, 41.5060541], [-95.4552159, 41.506456], [-95.4547791, 41.5075802], [-95.4545052, 41.508224], [-95.4539609, 41.5096675], [-95.4533196, 41.5113056], [-95.4527788, 41.5125179], [-95.4527094, 41.5126971], [-95.4526193, 41.5128866], [-95.4525673, 41.5130605], [-95.4525257, 41.5133616], [-95.452491, 41.5134914], [-95.4522137, 41.5141482], [-95.4518982, 41.5149244], [-95.4518854, 41.5150123], [-95.4519294, 41.5151554], [-95.4520396, 41.5154229], [-95.452075, 41.5155889], [-95.4520438, 41.5157291], [-95.4517923, 41.5164133], [-95.4515703, 41.5169204], [-95.4514706, 41.5172562], [-95.4514284, 41.5173223], [-95.4512869, 41.5174487], [-95.4511486, 41.517572], [-95.4503856, 41.5183241], [-95.4503051, 41.5183614], [-95.4500521, 41.5183987], [-95.4499562, 41.5184303], [-95.4498872, 41.5184877], [-95.4494923, 41.5188839], [-95.4489753, 41.5193335], [-95.448509, 41.5196786], [-95.4475915, 41.5203237], [-95.4473559, 41.5204922], [-95.4469204, 41.5207706], [-95.4446013, 41.5224112], [-95.4444155, 41.5225689], [-95.444318, 41.5227005], [-95.4442691, 41.5227922], [-95.4441335, 41.5229343], [-95.4436727, 41.5232062], [-95.4432694, 41.5234086], [-95.4427618, 41.5236284], [-95.442251, 41.5238365], [-95.4419513, 41.5239476], [-95.4416999, 41.5240099], [-95.4412436, 41.5241033], [-95.4406933, 41.5241941], [-95.4401337, 41.5242718], [-95.4397298, 41.5243004], [-95.4393351, 41.5243185], [-95.4388119, 41.5243014], [-95.4384693, 41.5242785], [-95.4381098, 41.5242373], [-95.437329, 41.5241115], [-95.436776, 41.5239833], [-95.4366267, 41.5239449], [-95.4347644, 41.5234863], [-95.4325058, 41.5230064], [-95.4319008, 41.5229171], [-95.431584, 41.5229079], [-95.4312187, 41.5228347], [-95.4308661, 41.5227234], [-95.4301864, 41.5224849], [-95.4299995, 41.5224594], [-95.4298084, 41.5224849], [-95.429647, 41.522558], [-95.4289121, 41.5230096], [-95.4282027, 41.523334], [-95.4275485, 41.5237252], [-95.4272596, 41.5238842], [-95.4266649, 41.524145], [-95.4263718, 41.5243104], [-95.4257091, 41.524797], [-95.4250762, 41.5252613], [-95.422298, 41.5273094], [-95.4219752, 41.5274843], [-95.4206796, 41.5281839], [-95.4200084, 41.528451], [-95.4187437, 41.5289191]], [[-95.4518404, 41.5010062], [-95.4518601, 41.5005088], [-95.4518517, 41.5004814], [-95.4518263, 41.5004477]], [[-95.4518263, 41.5004477], [-95.4518713, 41.5004192], [-95.4519079, 41.500375], [-95.451936, 41.5003086], [-95.4519417, 41.5002476], [-95.451936, 41.5002117], [-95.4519192, 41.5001728], [-95.4518953, 41.5001464], [-95.4518601, 41.5001233], [-95.4517912, 41.5001022], [-95.4517124, 41.500099], [-95.4516632, 41.5001117], [-95.4516056, 41.5001443], [-95.4515493, 41.5001896], [-95.4515113, 41.5002476], [-95.451493, 41.5003034], [-95.4515043, 41.5003603], [-95.451531, 41.5004076], [-95.4515732, 41.5004403], [-95.4516309, 41.5004645], [-95.4516829, 41.5004698], [-95.4517532, 41.5004656], [-95.451787, 41.5004603], [-95.4518263, 41.5004477]]]}}