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St. Martin Island Light

Lighthouse · Delta County, Michigan

U.S. Coast Guard Archive Photo of St. Martin Island Light, St. Martin Island, Michigan
U.S. Coast Guard Archive Photo of St. Martin Island Light, St. Martin Island, Michigan · United States Coast Guard / Wikimedia Commons · Public domain

St. Martin Island Light is a lighthouse in Delta County, Michigan. Michigan has 124 lighthouses on record at Wayfarrow, 5 of them in Delta County.

The tower stands about 75 feet tall (7th tallest of 63 measured in Michigan); its light sits 82 feet above the water; the light characteristic is recorded as Alt W 5s, R 5s, with a range of about 18 nautical miles; it guards Lake Michigan.

Status check, 2026-11: This unusual hexagonal tower has its steel frame on the outside. It was finished in 1904 but not lit until 1905 because there was no money to hire keepers, and it is still guiding ships. St. Martin Island Light is listed on the National Register of Historic Places. It stands at 45.5028° N, 86.7575° W.

Key facts

Tower height75 ft
Focal height82 ft
Light characteristicAlt W 5s, R 5s
Range18 nautical miles
Body of waterLake Michigan
Heritage designationNational Register of Historic Places listed place
National RegisterListed
Coordinates45.50278, -86.75750

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Nearby places

Questions

Where is St. Martin Island Light?

St. Martin Island Light is in Delta County, Michigan, at 45.5028, -86.7575.

How many lighthouses are in Delta County?

Delta County, Michigan has 5 lighthouses on record at Wayfarrow.

Sources and licences

Facts marked "approximately" carry an uncertain date in the source. Text on this page is generated from the sources above; no encyclopedia prose is copied. Last updated 2026-11-05.