{"nrhp_refnum":"85003323","name":"Boston Harbor Islands Archeological District","other_names":[],"category":"district","location":{"address":null,"address_restricted":true,"city":"Boston","county":"Suffolk County","state":"MA","lat":null,"lon":null,"geom_source":null},"listed_date":"1985-12-21","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Prehistoric"],"significance_levels":["state","local"],"summary":null,"photo":null,"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/63797100","wikipedia":null,"wikidata":null},"indexable":false,"url":"https://nationalhistoricalregister.com/massachusetts/suffolk-county/boston-harbor-islands-archeological-district-85003323/"}