{"nrhp_refnum":"100012136","name":"Gravel Springs Farm","other_names":["Pifer House","Dhr Id# 034-0124"],"category":"building","location":{"address":"2074 S Pifer Road","address_restricted":false,"city":"Star Tannery","county":"Frederick County","state":"VA","lat":39.083203000000026,"lon":-78.45226299999996,"geom_source":"nps_gis"},"listed_date":"2025-08-14","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["local"],"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/virginia/frederick-county/gravel-springs-farm-100012136/"}