![Michigan Roadside Attractions: Holz Brucke (Wooden Bridge), Frankenmuth](http://travelthemitten.com/wp-content/uploads/2018/04/Holz-Brucke-Frankenmuth-Michigan-470x140.jpg)
Michigan Roadside Attractions is a periodic feature on Travel the Mitten that will explore the many interesting things that can be found on the highways,…
![Sanilac Petroglyphs Historic State Park, Sanilac County](http://travelthemitten.com/wp-content/uploads/2018/07/Sanilac-Petroglyphs-Bowman-Michigan-History-State-Park-470x140.jpg)
A somewhat remote location and a short season of being open keep Sanilac Petroglyphs Historic State Park from getting the attention it deserves. It may…