Lake Erie forms the entire north border. The Ohio River forms the entire south border. There are no natural borders on the East or West borders of Ohio.
The state that border Ohio to the south is the state of Kentucky. The state that borders Ohio to the east is Pennsylvania.
Kentucky
Indiana borders Lake Michigan to the northwest, Michigan to the north, Ohio to the east, Kentucky to the south and southeast, and Illinois to the west.
It borders Ohio to the south. It then runs into the Mississippi River.
Ohio shares a border with Indiana to the west, Pennsylvania to the east, and Kentucky and West Virginia to the south.
The Ohio River forms the southern borders of Ohio and Indiana.
what lake forms the northerm borders of Ohio
Michigan shares borders with Ohio and Indiana to the south. And Wisconsin, as the Upper Peninsula borders it up north. (There are water borders within the Great lakes with Illinois and Minnesota.)
Ohio River
Ohio
Ohio