{"nrhp_refnum":"78001171","name":"Clear Lake Site","other_names":[],"category":"site","location":{"address":null,"address_restricted":true,"city":"Manito","county":"Mason County","state":"IL","lat":40.422778,"lon":-89.78,"geom_source":"wikidata"},"listed_date":"1978-11-28","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Prehistoric"],"significance_levels":["national"],"summary":null,"photo":null,"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/28893604","wikipedia":"https://en.wikipedia.org/wiki/Clear_Lake_Site","wikidata":"https://www.wikidata.org/wiki/Q5130754"},"indexable":false,"url":"https://nationalhistoricalregister.com/illinois/mason-county/clear-lake-site-78001171/"}