Round Island Passage Light
Lighthouse in Michigan, United States / From Wikipedia, the free encyclopedia
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Round Island Passage Light is an automated, unmanned lighthouse located in the Round Island Channel in the Straits of Mackinac, Michigan.[3][4][5] The channel is a branch of Lake Huron.[6]
Quick Facts Location, Coordinates ...
Location | Mackinac Island, Mackinac County, US |
---|---|
Coordinates | 45°50′36″N 84°36′54″W |
Tower | |
Constructed | 1947 |
Construction | reinforced concrete (tower), box crib (foundation) |
Automated | 1973 |
Height | 18 m (59 ft) |
Shape | octagon |
Markings | white (tower) , stripe (red) |
Heritage | National Register of Historic Places listed place |
Fog signal | Horn: On request - 1 every 30s |
Racon | X |
Light | |
First lit | 1948 |
Focal height | 22 m (72 ft) |
Lens | Sealed beam (original), 7.5-inch (190 mm) (current) |
Range | 14 nmi (26 km; 16 mi) |
Characteristic | Fl R 4s |
Round Island Passage Light | |
MPS | Light Stations of the United States MPS |
NRHP reference No. | 13000583[1] |
Added to NRHP | August 7, 2013[2] |
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