Isle Royale Lighthouse is located in Isle Royale National Park on Menagerie Island in Michigan’s Keweenaw County. This 61 foot (18.6 m) tall octagonal light tower was built in 1875 to aid ships coming into Isle Royale’s rocky harbor. The light keepers home is attached to the light tower by an 8 foot (2.5 m) long covered passageway. The second lightkeeper on the island was John Henry Malone, who lived there with his wife and 11 children for 31 years. The grounds on Menagerie Island are open but the tower is closed to visitors.