Sanilac Petroglyphs Historic State Park

Sanilac Petroglyphs
Historic State Park
ezhibiigadek asin
Detail of a carved archer-like figure at the site
Location in Michigan
Sanilac Petroglyphs Historic State Park (the United States)
LocationThe Thumb, Sanilac County, Michigan, United States
Nearest townCass City, Michigan
Coordinates43°39′28″N 83°01′07″W / 43.65778°N 83.01861°W / 43.65778; -83.01861
Area240 acres (97 ha)
Elevation751 feet (229 m)
Established1971
Administered byMichigan Department of Natural Resources / Saginaw Chippewa Nation
Visitors4,300 (in 2015)
DesignationMichigan state park
WebsiteOfficial website
Sanilac Petroglyphs
NRHP reference No.71001024
Added to NRHPJanuary 25, 1971

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.