"Isle Royale." YourDictionary, n.d. Web. 10 April 2019. <https://www.yourdictionary.com/isle-royale>.
Isle Royale. (n.d.). Retrieved April 10th, 2019, from https://www.yourdictionary.com/isle-royale
An island of northern Michigan in Lake Superior near the coast of Ontario. French fur traders named the island in 1671. Native Americans mined the island's copper for centuries before ceding the island to the United States in 1843. It is now a national park.