Nestled along 7.5 of Lake Huron's beautiful shoreline, Thompson's Harbor State Park offers a rustic adventure for outdoor enthusiasts. Encompassing more than 5,000 acres, this undeveloped park boasts a diverse landscape of forests, sand dunes, marshes and a rocky shoreline. The park is located 24 miles north of Alpena on U.S. 23 North.

This park provides critical habitat for two sensitive species: the federally and state-threatened dwarf lake iris, Michigan's state wildflower, and the Eastern massasauga rattlesnake, a species of special concern protected by state law.

The park is home to a designated dark sky preserve, providing awesome opportunities to view the night sky, two cabins and 6 miles of trails.

Thanks to the Friends of Thompson’s Harbor State Park for supporting the park.