Isle Royale National Park is made up of about 400 islands, and is in the northwest portion of Lake Superior. It is about from Michigan's shore, and from the Canadian shore. The main island is about long, and wide at the widest point, with an area of . There are no roads, and no motorized vehicles are allowed on the island. The park is closed from September to May during which the wolf-moose study personnel are the only human residents on the island.