Spectacle Reef Light

1870

LAKE HURON LIGHTS

USCG PHOTO

LIGHTHOUSES OF MICHIGAN

The need for an underwater foundation, the isolated site, and the harsh climate made the building of this station a major engineering feat.  Using two Lightship Tenders and a dozen other vessels, over 200 men were needed to complete this project in just four years.

LOCATION: West edge of reef, East end of Straits of Mackinac, NW end of Lake Huron

CURRENT TOWER LIT: 1874

CURRENT USE: Active aid to navigation

AUTOMATED: 1972

FOUNDATION MATERIALS: Cofferdam protected by a crib / Limestone

LIGHTHOUSE MATERIALS: Stone

TOWER SHAPE: Conical --- 86 ft. tall

COLOR(S)/MARKINGS/PATTERN: Natural with red trim

ORIGINAL LENS: Second Order, Fresnel 1874 --- it was removed in 1982 and is on display in the Great Lakes Historical Society Museum in Vermilion, Ohio

NEAT CHARACTERISTICS: This light is one of the best specimens of monolithic stone masonry in the US.  Thirty-four feet up the tower is solid and the rest is hollow.  It was also 1 of only 5 Great Lakes lights that had a Second Order, Fresnel Lens --- no Great Lakes lights had a First Order, Fresnel Lens.