Isle Royale National Park

Isle Royale National Park is a wildlife reserve on more than 100 islands in northwest Lake Superior, in northern Michigan in the United States. This national park was opened in 1940. The wildlife includes moose, wolves and many kinds of birds.
One of the islands is called Isle Royale. It has an area of 229 square miles. Native Americans mined copper on this island in pre-Columbian times (before 1492). The mines can still be seen here.
Other websites.
Isle Royale National Park - National Park Service website