Name and Location

The Round Island Lighthouse is located on the eastern shore of Mackinac Island, Michigan, USA, guiding mariners through the treacherous waters of Lake Huron and the Straits of Mackinac.

Construction and History

The lighthouse was constructed in 1896, with a height of 81 feet (24.7 meters) and a focal plane height of 85 feet (25.9 meters). It was originally operated manually by lighthouse keepers until 1969 and was automated in 1982.

Architecture and Materials

The Round Island Lighthouse is a classic example of a vertical-tapered lighthouse, featuring a black granite base, a white limestone tower, and a distinctive red roof. The structure is constructed from granite and limestone, with a foundation anchored to bedrock.

Light and Navigation

The lighthouse's original optic lens was replaced in 1970 with a modern Fresnel lens. Its light characteristic is Fl(3)W.15s, emitting a white light every 15 seconds, visible for 17 nautical miles (31 kilometers).

Accessibility and Visiting

Visitors can access the grounds and enjoy stunning views of Lake Huron and the surrounding landscape. However, due to its remote location and rugged terrain, the interior of the tower is not open to the public.

Notable Views and Landscape

The lighthouse offers breathtaking views of Lake Huron and the surrounding landscape.

Anecdotes and Folklore

No anecdotal information available.

Technical and Operational Details

Originally operated manually by lighthouse keepers until 1969, the Round Island Lighthouse was automated in 1982. The lighthouse's original optic lens was replaced in 1970 with a modern Fresnel lens.

Further Information

The Round Island Lighthouse is designated as a Michigan State Historic Site and has been recognized for its cultural and historical significance.