Lighthouse on Isle Royale.
Isle Royale definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
island of Mich., in N Lake Superior
Origin: French literally , royal island
Isle Royale definition by American Heritage Dictionary
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 tourist center.