Written in Stone Near Lake Huron
In a stretch of woods in Greenleaf Township, a sandstone outcrop carries ezhibiigaadek asin, “written on stone.” The Michigan DNR describes the site as Michigan’s largest known collection of early Native American teachings carved in stone. The Saginaw Chippewa Indian Tribe describes it as a historic ceremonial site of its ancestors, visited by its people for many generations. Today the Tribe and the state jointly manage the park, and the viewing area opens seasonally for guided tours.
East of Greenleaf, farmland runs toward Lake Huron. M-25 follows the shore through Lexington and Port Sanilac, where harbors, parks, and seasonal events give the county a second visitor route. The petroglyph site and the lakeshore are very different places, and neither benefits from being rushed. Check the tour schedule first, then leave room in the day for the drive to the water.
Where to see it
Sanilac Petroglyphs Historic State Park is at 8251 Germania Road near Cass City; its viewing area opens seasonally for guided tours. M-25 follows the Lake Huron shore through Lexington and Port Sanilac.
Sources
Last reviewed against the listed sources: July 15, 2026.