Sanilac Petroglyphs Historic State Park

Sanilac Petroglyphs Historic State Park is a historic preservation area in the U.S. state of Michigan. The state park, also known as ezhibiigadek asin (Ojibwe for "written on stone"), consists of 240 acres (97 ha) in Greenleaf Township, Sanilac County, in Michigan's Thumb. It contains the largest collection of Native American petroglyphs in Michigan. The carvings were created in the pre-Columbian era and represent aspects of Native American spirituality. An interpretive hiking trail within the park passes along the nearby Cass River. The park is co-managed by the Michigan Department of Natural Resources and the Saginaw Chippewa Nation. It was donated to the state by the Michigan Archaeological Society in 1971, and it is listed on the National Register of Historic Places.

Archaeological site data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).