Fort St. Clair
| Fort St. Clair | |
|---|---|
| Site information | |
| Type | Fort |
| Location | |
| Coordinates | 39°44′17″N 84°39′16″W / 39.7381°N 84.6543107°W |
| Site history | |
| Built | 1791–1792 |
| Battles/wars | Northwest Indian War |
Fort St. Clair was a fort built in March 1792 during the Northwest Indian War near the modern city of Eaton, Preble County, Ohio. The site of the fort was listed on the National Register of Historic Places in 1970.