The Ohio River forms the southern borders of Ohio and Indiana.
none of the rivers form the southern border of Indiana, but the Ohio river forms the southern border of Ohio.
Ohio
Ohio, Indiana & Illinois
The Ohio river is located on the southern boundary of Indiana and Ohio. The Ohio River also borders northern Kentucky.
The Ohio River forms Ohio's southern border.
The Ohio River forms the borders of West Virginia, Ohio, Kentucky, Indiana, and Illinois. The border terminates at the confluence with the Mississippi and the border with Pennsylvania.
Michigan, Ohio, Kentucky, and Illinois border Indiana.
The Ohio River creates the southern borders of Indiana, Illinois, and Ohio where it meets the Mississippi River.
The Ohio river valley begins in the northern borders of West Virginia and Kentucky; and the southern borders of Ohio, Indiana and Illinois. The Ohio river empties into the Mississippi river near Cairo Illinois.
Indiana boarders Ohio to the west.
Indiana borders Ohio to the east.