 | |
 | |
| Location | Mackinac Island, Mackinac County, US |
|---|---|
| Coordinates | 45°50′36″N 84°36′54″W / 45.8433°N 84.615°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 | |
 Round Island Passage Light is SW of the southern end of the west breakwater guarding Haldimand Bay. | |
| MPS | Light Stations of the United States MPS |
| NRHP reference No. | 13000583[1] |
| Added to NRHP | August 7, 2013[2] |
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]
- ^ "National Register Information System". National Register of Historic Places. National Park Service. March 13, 2009.
- ^ Cite error: The named reference
actionswas invoked but never defined (see the help page). - ^ Light List, Volume VII, Great Lakes (PDF). Light List. United States Coast Guard. 2009. p. 126.
- ^ "Historic Light Station Information and Photography: Michigan". United States Coast Guard Historian's Office. Archived from the original on 2017-05-01.
- ^ Rowlett, Russ (2010-03-12). "Lighthouses of the United States: Michigan's Eastern Upper Peninsula". The Lighthouse Directory. University of North Carolina at Chapel Hill.
- ^ "Chart 14881:Lake Huron: Straits of Mackinac: De Tour Pass to Waugoshance Point (1/80,000)". NOAA. 2005.
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