Wabash River

The Wabash River (French: Ouabache) is a  503 mi river in the Midwestern United States that flows southwest from northwest Ohio near Fort Recovery across northern Indiana to southern Illinois.

It forms the Illinois-Indiana border before draining into the Ohio River, of which it is the largest northern tributary. From the dam near Huntington, Indiana to its terminus at the Ohio River, the Wabash flows freely for 411 mi.