Isle Royale

Isle Royale National Park is an American national park consisting of Isle Royale and more than 400 small adjacent islands, as well as the surrounding waters of Lake Superior, in the state of Michigan. Isle Royale is 45 mi long and 9 mi wide, with an area of 206.73 sq mi, making it the fourth-largest lake island in the world. In addition, it is the largest natural island in Lake Superior, the second-largest island in the Great Lakes, the third-largest in the contiguous United States, and the 33rd-largest island in the United States.Isle Royale National Park was established on April 3, 1940, then additionally protected from development by wilderness area designation in 1976, declared a UNESCO International Biosphere Reserve in 1980, and added to the National Register of Historic Places in 2019 as the Minong Traditional Cultural Property. The park covers 894 sq mi, with 209 sq mi of land and 685 sq mi of surrounding waters.