Fort Jefferson (Ohio)

Fort Jefferson Site
Southern side of the hill on which the fort sat
LocationState Route 121 in Neave Township, Darke County, Ohio
Coordinates40°1′32″N 84°39′24″W / 40.02556°N 84.65667°W / 40.02556; -84.65667
Area6.5 acres (2.6 ha)
Built1791
NRHP reference No.70000488
Added to NRHPNovember 10, 1970

Fort Jefferson was a fortification erected by soldiers of the United States Army in October 1791 during the Northwest Indian War. Built to support a military campaign, it saw several years of active fighting. Today, the fort site is a historic site.