Isle Royale National Park

Accessible only by boat or seaplane, Isle Royale National Park occupies an isolated archipelago in the northwestern waters of Lake Superior. The park encompasses more than 850 square miles, including the main island, approximately 450 smaller islands and the surrounding submerged lands. It is the largest federally designated wilderness area in Michigan.

The landscape is shaped by rocky ridges, boreal forests, inland lakes and a rugged shoreline marked by coves and narrow channels. Its isolation has protected much of its wilderness character, creating a setting far removed from roads, cities and other features of modern life.

Isle Royale is particularly known for its populations of wolves and moose. Their changing relationship has been studied continuously for decades, making it one of the world’s longest-running predator-prey research projects. The park also protects forests, wetlands, fisheries and the remains of earlier copper mining, commercial fishing and lighthouse communities.

Congress authorized Isle Royale National Park on March 3, 1931, during the administration of President Herbert Hoover. The park was formally established on April 3, 1940, under President Franklin D. Roosevelt. Much of the park received federal wilderness protection in 1976.  The limited accessibility, absence of roads and immense surrounding waters have allowed Isle Royale to remain one of the most remote and scenic national parks in the contiguous United States.