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Sanilac Petroglyphs Historic State Park

8251 Germania Road,
Cass City, MI 48726
Historical Site
Family-friendly
Open Year-Round
Description
Within the 240-acre state park, the Sanilac petroglyphs are the only known rock carvings attributed to Native American workmanship in the Lower Peninsula of Michigan. The carvings, known as petroglyphs, were discovered after an 1881 fire cleared the thick brush in the area and revealed the rocks underneath. The petroglyphs, which are believed to have been carved between 300 to 1,200 years ago, include depictions of swirls, lines, handprints, flying birds and bow men. The petroglyphs are open to visitation Wednesday through Sunday from Memorial Day and Labor Day.
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