Au Sable Light
Lighthouse in Michigan, United States / From Wikipedia, the free encyclopedia
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Au Sable Light is an active lighthouse in the Pictured Rocks National Lakeshore west of Grand Marais, Michigan off H-58. Until 1910, this aid to navigation was called "Big Sable Light" (not to be confused with Big Sable Point Light[7] near Ludington, Michigan on Lake Michigan or Little Sable Point Light south of Pentwater, Michigan).
Quick Facts Location, Coordinates ...
Location | Pictured Rocks National Lakeshore on Lake Superior |
---|---|
Coordinates | 46°40′23″N 86°08′21.6″W |
Tower | |
Constructed | 1874[1] |
Foundation | Wood pilings |
Construction | Brick, Italianate bracketing |
Automated | 1958 |
Height | 87 feet (27 m)[2] |
Shape | Frustum of a cone |
Markings | White with black lantern |
Heritage | National Register of Historic Places listed place, Michigan state historic site |
Light | |
First lit | 1874 |
Focal height | 107 feet (33 m)[3] |
Lens | Third-order Fresnel lens (original), 12-inch (300 mm) acrylic (current) |
Range | 11 nautical miles (20 km; 13 mi)[4] |
Characteristic | Flashing white every 6 s[4] |
Au Sable Light Station | |
Nearest city | Grand Marais, Michigan |
Area | 5 acres (2.0 ha) |
Architect | Col. Orlando M. Poe |
Architectural style | Italianate bracketing |
NRHP reference No. | 78000374[5] |
Significant dates | |
Added to NRHP | May 23, 1978 |
Designated MSHS | September 21, 1976[6] |
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