Saint Martin Island Lighthouse

The Saint Martin Island Lighthouse is located on Saint Martin Island in Lake Superior, Michigan. The lighthouse was constructed in 1858 to serve as a navigational aid for mariners traversing the treacherous waters of the Great Lakes.

Architecture and Construction Materials

• The lighthouse stands at a height of approximately 50 feet (15 meters) above the lake's surface, with a focal height of around 120 feet (37 meters).
• The tower is constructed from limestone and features a distinctive octagonal shape.
• The lantern room is housed in a glass-enclosed structure, allowing for optimal visibility.

Light Characteristics

The lighthouse emits a fixed white light, visible to mariners up to 20 nautical miles away. The light pattern consists of a single beam, rotating every 10 seconds to ensure maximum visibility.

Current Status

The Saint Martin Island Lighthouse is currently automated, with an optic system and solar-powered lighting. However, the lighthouse remains open to the public as a museum, offering guided tours and educational programs.

Location and Accessibility

Located on Saint Martin Island in Lake Superior, Michigan, the lighthouse can be accessed via a short walkway from the island's mainland. Visitors must take a ferry or boat to reach the island, which is operated by the U.S. Coast Guard Auxiliary.

Heritage Status

The Saint Martin Island Lighthouse has been designated as a historic landmark by the State of Michigan and is listed on the National Register of Historic Places.

Notable Historical Events

• During World War II, the lighthouse played an important role in the war effort, serving as a navigation aid for Allied naval vessels.
• In 1969, the U.S. Coast Guard replaced the original lantern room with a modern optic system, increasing the light's range and visibility.