Petroglyphs
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Open seasonally
2018 Season Dates and HoursThe Sanilac Petroglyphs Historic Site is open Wednesday through Sunday, 10 a.m. to 5 p.m., May 25 to September 2. It will be open for regular hours on Wednesday, July 4. |
| Two bonus days to view the petroglyphs: The Sanilac Petroglyphs Historic Site will be open Monday, May 28 (Memorial Day), and Monday, September 3 (Labor Day), from 10 a.m. to 5 p.m. |
| Sanilac Petroglyphs 8251 Germania Road Cass City, MI 48726 989-856-4411 |
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