The southern border of Ohio is 981 miles and is defined by the Ohio River. It is also the southern border of Indiana and Illinois.
The Ohio River and Ohio River Valley boarder the southern part of Ohio.
The longest river in the State of Ohio is the Scioto, at 231 miles long. The Scioto originates in Auglaize County in West Central Ohio and terminates in the Ohio River near Portsmouth. The Ohio River, which borders 451 miles of the State, comprises portions of the eastern and southern border of the state and does not reside in the State.
Ohio River
The Ohio River.
none of the rivers form the southern border of Indiana, but the Ohio river forms the southern border of Ohio.
The Ohio river is located on the southern boundary of Indiana and Ohio. The Ohio River also borders northern Kentucky.
The Ohio River forms the southern borders of Ohio and Indiana.
The Ohio River forms Ohio's southern border.
The Ohio River
The Ohio River
The Ohio River formed the southern border of the Northwest Territory.