| Fort St. Clair | |
|---|---|
 | |
  Fort St. Clair | |
| Coordinates | 39°44′17″N 84°39′16″W / 39.7381°N 84.6543107°W |
| Type | Fort |
| Site history | |
| Built | 1791-1792 |
| Battles/wars | Northwest Indian War |
Fort St. Clair was a fort built in March 1792[1] 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.[2]