{"nrhp_refnum":"100006336","name":"Silvertown Historic District","other_names":["Silvertown Mill Village","Martha Mills"],"category":"district","location":{"address":"Approx. 1 mile north of downtown along GA 19","address_restricted":false,"city":"Thomaston","county":"Upson County","state":"GA","lat":32.90423800000005,"lon":-84.33018244812521,"geom_source":"nps_gis"},"listed_date":"2021-04-05","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture","Community Planning and Development","Landscape Architecture","Industry"],"significance_levels":["state","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/georgia/upson-county/silvertown-historic-district-100006336/"}