{"nrhp_refnum":"100001251","name":"Mine Roof Simulator","other_names":[],"category":"object","location":{"address":"NIOSH, Bruceton Research Center, W. side of Cochran Hill Rd.","address_restricted":false,"city":"South Park Township","county":"Allegheny County","state":"PA","lat":40.30284500000005,"lon":-79.97836199999995,"geom_source":"nps_gis"},"listed_date":"2017-06-26","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Industry"],"significance_levels":["national"],"summary":null,"photo":null,"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":null,"wikipedia":null,"wikidata":null},"indexable":false,"url":"https://nationalhistoricalregister.com/pennsylvania/allegheny-county/mine-roof-simulator-100001251/"}