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| Location | Chippewa County, US |
|---|---|
| Coordinates | 46°06′31″N 84°01′11″W / 46.108667°N 84.019833°W |
| Tower | |
| Construction | concrete (foundation), wood (tower)  |
| Markings | gray (tower), white (trim), black (cupola) |
| Light | |
| First lit | 1892 |
| Deactivated | 1922 |
Round Island Light is a lighthouse on Round Island in the St. Marys River. It is in Michigan, about a mile from the Ontario border.[1]
- ^ NOAA chart 14882