Round Island Light, Michigan
 Round Island Lighthouse | |
 | |
| Location | Mackinac County, Michigan |
|---|---|
| Coordinates | 45°50′13.8″N 84°36′59.7″W / 45.837167°N 84.616583°W |
| Tower | |
| Constructed | 1895  |
| Construction | brick |
| Height | 17 m (56 ft) |
| Markings | red, white |
| Heritage | National Register of Historic Places listed place |
| Light | |
| First lit | 1895 |
| Deactivated | 1947 |
| Focal height | 16 m (52 ft) |
| Range | 16 nmi (30 km; 18 mi) |
| Characteristic | Fl W 10s |
It is located in the Straits of Mackinac, which connect Lake Michigan and Lake Huron.
The sole building on the island is a vintage lighthouse built in 1895. Round Island Light was an active lighthouse and fog signal in 1895-1947, and was relit by a private foundation in 1996. Round Island Light was listed on the National Register of Historic Places in September 1974.