Sanilac Petroglyphs Historic State Park is a public state park in Michigan near Cass City in Sanilac County. Spanning 240 acres and established in 1971, this park offers a peaceful retreat into nature for visitors of all ages.
Quick Facts
| State | Michigan |
| Nearest City | Cass City |
| County | Sanilac |
| Park Size | 240 acres |
| Established | 1971 |
| Google Rating | ⭐ 4.4/5 (350 reviews) |
Location & Getting There
Sanilac Petroglyphs Historic State Park is located near Cass City, Michigan. The park’s coordinates are 43.6578, -83.0186.
Things to Do
Michigan’s state park system — one of the largest in the nation — stretches across two peninsulas surrounded by four Great Lakes, offering extraordinary variety. Activities include swimming and sunbathing on freshwater beaches that rival ocean coastlines, hiking sand dune bluffs with panoramic lake views, fishing for walleye, bass, and salmon in rivers and Great Lakes tributaries, camping in pine forests steps from the beach, kayaking along dramatic Pictured Rocks-style shorelines, mountain biking through rolling hardwood forests, cross-country skiing and snowmobiling in the Upper Peninsula, and exploring historic lighthouses dotting the coastline. Michigan’s state parks include some of the finest freshwater beaches in the world.
Best Time to Visit
Michigan’s park season centers on summer (June–August), when Great Lakes beaches warm up, trails are fully accessible, and campgrounds are buzzing with activity. Lake Michigan water temperatures peak in August (65–75°F). Fall (September–October) brings spectacular foliage — the Upper Peninsula and northern Lower Peninsula peak in late September, while southern parks follow in October. Spring (April–May) is muddy but great for wildflowers and waterfall viewing. Winter transforms many parks into Nordic skiing, snowshoeing, and ice fishing destinations. The Upper Peninsula receives 200+ inches of annual snowfall, creating a winter recreation paradise. Recreation Passport ($17) required for vehicle entry — add it to your license plate registration for the best value.
Visitor Tips
Michigan state parks require a Recreation Passport ($17 for Michigan residents, $34 for non-residents) for vehicle entry. Purchase it with your license plate renewal for automatic access all year. Camping reservations are made through the Michigan DNR reservation system up to 6 months in advance. Lakefront campsites at popular parks like Holland, Ludington, and Traverse City sell out within hours of opening. Bring warm layers even in summer — Great Lakes breezes can drop temperatures significantly near the water.
Frequently Asked Questions
What is a Michigan Recreation Passport?
The Recreation Passport ($17 for residents, $34 for non-residents) is required for vehicle entry to all Michigan state parks and recreation areas. It can be purchased when registering your vehicle or at park entrances.
What are the best state parks in Michigan's Upper Peninsula?
Top UP parks include Pictured Rocks (stunning cliffs), Tahquamenon Falls (second-largest waterfall east of Mississippi), Porcupine Mountains (wilderness hiking), and Copper Harbor area parks for remote beauty.
Can I camp on the beach in Michigan?
Several Michigan state parks offer beachfront or near-beach camping on the Great Lakes, including Ludington, Holland, and Sleeping Bear Dunes area campgrounds. Lakefront sites are extremely popular and sell out quickly.
When is the best time to visit Michigan state parks?
Summer (June through August) is peak season for beaches and camping. Fall brings spectacular foliage, especially along the Lake Michigan shoreline. Winter offers cross-country skiing and ice fishing at many parks.
Explore More Michigan State Parks
Sanilac Petroglyphs Historic State Park is one of many outstanding state parks in Michigan. Discover more parks in our Best State Parks in Michigan guide, or use our Park Finder to search by activity, location, or features.
Wildlife & Nature
Sanilac Petroglyphs HSP — in Sanilac County — preserves Native American rock carvings (petroglyphs) dating back 300-1,000 years. The carvings — on a sandstone outcrop exposed by an 1881 forest fire — depict a hunter, archer, and various animals. The surrounding second-growth forest supports white-tailed deer, wild turkeys, and porcupines. Barred owls call at dusk.
Nearby Attractions
Cass City — 15 miles south. Port Sanilac — 25 miles east — has the Sanilac County Museum. Lakeport SP — 30 miles southeast. Lake Huron — 25 miles east.
More parks nearby: Sleeper State Park is within about an hour’s drive, while Port Crescent State Park lies within about an hour’s drive.
Park Location
Plan your gear for Sanilac Petroglyphs Historic State Park
From our editorial guides, matched to this park’s activities:
