The Ohio River forms the southern boundaries of Ohio and Indiana. It begins at the Ohio-Pennsylvania border. It flows southwesterly between Ohio and Kentucky, Indiana and Kentucky, and continues to the Mississippi River.
The Ohio River forms the boundary between Indiana and Kentucky.
The Ohio River forms the boundary between Indiana and Kentucky.
The Ohio River forms the boundary between Indiana and Kentucky.
The Ohio River forms the boundary between Indiana and Kentucky.
The Ohio River forms the boundary between Indiana and Kentucky.
The Ohio River forms the boundary between Indiana and Kentucky.
The Ohio River forms the boundary between Indiana and Kentucky.
The Ohio River forms the boundary between Indiana and Kentucky.
The Ohio River forms the boundary between Indiana and Kentucky.
The Ohio River forms the boundary between Indiana and Kentucky.
The Ohio River forms the boundary between Indiana and Kentucky.