The Ohio River forms the southern borders of Ohio and Indiana.
West Virginia, Ohio, Illinois, and Indiana form the northern border of Kentucky, along the Ohio River.
Ohio
The three rivers that run through Pittsburgh, PA are:Allegheny RiverOhio RiverMonongahela RiverThe Allegheny River and the Monongahela River meet at Pittsburgh to form the Ohio River.
Ohio River Hope tht helps. ; )
Ohio
none of the rivers form the southern border of Indiana, but the Ohio river forms the southern border of Ohio.
The Ohio River
The Ohio River
The Mississippi River, the Ohio River, and the Wabash River.
The Allegheny, The Monongahela and the Ohio.
The city is located on the Alleghenny Plateau where the confluence of the Alleghenny River and the Mongongahela River form the Ohio River