{"nrhp_refnum":"78002421","name":"Big and Little Indian Rock Petroglyphs","other_names":[],"category":"site","location":{"address":null,"address_restricted":true,"city":"Safe Harbor","county":"Lancaster County","state":"PA","lat":39.9208,"lon":-76.3847,"geom_source":"wikidata"},"listed_date":"1978-04-03","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Prehistoric","Art"],"significance_levels":["state"],"summary":null,"photo":null,"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71998036","wikipedia":"https://en.wikipedia.org/wiki/Big_and_Little_Indian_Rock_Petroglyphs","wikidata":"https://www.wikidata.org/wiki/Q4906706"},"indexable":false,"url":"https://nationalhistoricalregister.com/pennsylvania/lancaster-county/big-and-little-indian-rock-petroglyphs-78002421/"}