How Tall Are Sleeping Bear Dunes?
How Tall Are Sleeping Bear Dunes? The dunes rise as high as 460 feet (140 metres) above the lake and cover 4 square miles (10 square km). What is the tallest sand dune in Michigan? Whitefish Dunes State Park, located in Sturgeon Bay has the highest sand dunes in the state. The tallest dune, “Old