Rock Of Ages Light

1908

LAKE SUPERIOR LIGHTS

USCG PHOTO

HABS Sketches

LIGHTHOUSES OF MICHIGAN

On May 27, 1933, the freighter George M. Cox ran aground and the 125 survivors spent a day packed together inside the light tower.

LOCATION: 4.5 miles off W end of Isle Royale, mid-Lake Superior

CURRENT TOWER LIT: 1908

CURRENT USE: Active aid to navigation

AUTOMATED: 1978

FOUNDATION MATERIALS: Concrete Pier / Steel Caisson

LIGHTHOUSE MATERIALS: Steel / Masonry / Concrete

TOWER SHAPE: Cylindrical bottle shape --- 130 ft. tall

COLOR(S)/MARKINGS/PATTERN: White with black lantern

ORIGINAL LENS: Second Order, Fresnel

NEAT CHARACTERISTICS: The rock that supports the Rock of Ages light is very isolated and small --- only 150 feet at its longest point.  The top center of the rock was dynamited to provide a level, solid foundation for the tower.