{"nrhp_refnum":"73001478","name":"Rocky Fork Park Group","other_names":[],"category":"structure","location":{"address":null,"address_restricted":true,"city":"Marshall","county":"Highland County","state":"OH","lat":null,"lon":null,"geom_source":null},"listed_date":"1973-06-18","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Prehistoric"],"significance_levels":["local"],"summary":null,"photo":null,"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71989329","wikipedia":null,"wikidata":null},"indexable":false,"url":"https://nationalhistoricalregister.com/ohio/highland-county/rocky-fork-park-group-73001478/"}