{"nrhp_refnum":"78002909","name":"Camp Melvin Site","other_names":["41cx20"],"category":"site","location":{"address":null,"address_restricted":true,"city":"Iraan","county":"Crockett County","state":"TX","lat":null,"lon":null,"geom_source":null},"listed_date":"1978-11-15","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Commerce","Historic - Non-Aboriginal","Military","Communications"],"significance_levels":["state"],"summary":null,"photo":null,"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/40971599","wikipedia":null,"wikidata":null},"indexable":false,"url":"https://nationalhistoricalregister.com/texas/crockett-county/camp-melvin-site-78002909/"}