{"nrhp_refnum":"72001039","name":"Spruce Hill Works","other_names":[],"category":"site","location":{"address":null,"address_restricted":true,"city":"Bourneville","county":"Ross County","state":"OH","lat":null,"lon":null,"geom_source":null},"listed_date":"1972-02-23","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/71991157","wikipedia":null,"wikidata":null},"indexable":false,"url":"https://nationalhistoricalregister.com/ohio/ross-county/spruce-hill-works-72001039/"}