{"nrhp_refnum":"74002082","name":"Ham Creek Site","other_names":["X41jn1"],"category":"site","location":{"address":null,"address_restricted":true,"city":"Rio Vista","county":"Johnson County","state":"TX","lat":null,"lon":null,"geom_source":null},"listed_date":"1974-02-15","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Prehistoric"],"significance_levels":["state"],"summary":null,"photo":null,"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/40972715","wikipedia":null,"wikidata":null},"indexable":false,"url":"https://nationalhistoricalregister.com/texas/johnson-county/ham-creek-site-74002082/"}