Free State, Maryland, Old Line State, MD - a Mid-Atlantic state; one of the original 13 colonies

Old Dominion, Old Dominion State, VA, Virginia - a state in the eastern United States; one of the original 13 colonies; one of the Confederate States in the American Civil War

Mountain State, West Virginia, WV - a state in east central United States

river - a large natural stream of water (larger than a creek); "the river was navigable for 50 miles"