.jpg) Au Sable Light complex in June 2021 | |
 | |
| Location | Pictured Rocks National Lakeshore on Lake Superior |
|---|---|
| Coordinates | 46°40′23″N 86°08′21.6″W / 46.67306°N 86.139333°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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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).
- ^ Michigan lighthouse fund, Au Sable Light Archived January 6, 2009, at the Wayback Machine. Michiganlighthouse.org.
- ^ Pepper, Terry. "Database of Tower Heights". Seeing the Light. terrypepper.com. Archived from the original on September 18, 2000.
- ^ Pepper, Terry. "Database of Focal Heights". Seeing the Light. terrypepper.com. Archived from the original on August 30, 2008.
- ^ a b Light List, Volume VII, Great Lakes (PDF). Light List. United States Coast Guard. 2007. p. 143.
- ^ "National Register Information System". National Register of Historic Places. National Park Service. March 13, 2009.
- ^ State of Michigan (2009). "Big Sable Light Station". Archived from the original on May 11, 2012. Retrieved June 26, 2010.
- ^ National Park Service Maritime History Project, Inventory of Historic Light Stations, Au Sable Light.