United States

Routes listed by the state they start in

Alabama‍ ‍Arizona‍ ‍Colorado‍ ‍Florida‍ ‍Illinois‍ ‍Iowa‍ ‍Kansas‍ ‍

Maine‍ ‍Maryland‍ ‍Massachusetts‍ ‍Minnesota‍ ‍Missouri

Montana‍ ‍New Hampshire‍ ‍New York‍ Ohio

‍Oregon‍ ‍Pennsylvania‍ ‍Tennessee‍ ‍Utah‍ ‍

Vermont‍ ‍Washington, D.C.‍ ‍West Virginia‍ ‍Wisconsin