The winter headquarters for Isle Royale National Park is located in Houghton, Michigan, on the state's Upper Peninsula. During the summer, visitors can reach Isle Royale via ferries departing from Houghton, Michigan; Copper Harbor, Michigan; or Grand Portage, Minnesota. A Seaplane service operates out of Houghton, Michigan. Isle Royale can also be accessed by private boat and private seaplane.

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