{"nrhp_refnum":"80002748","name":"Russ-Johnsen Site","other_names":["Una. 18-4 &amp","19-4","NYSDHP Unique Site No. A077-22-0021"],"category":"site","location":{"address":null,"address_restricted":true,"city":"Unadilla","county":"Otsego County","state":"NY","lat":null,"lon":null,"geom_source":null},"listed_date":"1980-07-22","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Prehistoric","Historic - Non-Aboriginal"],"significance_levels":["state"],"summary":null,"photo":null,"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/75320981","wikipedia":null,"wikidata":null},"indexable":false,"url":"https://nationalhistoricalregister.com/new-york/otsego-county/russ-johnsen-site-80002748/"}