. U.S. Route 89, a north-south United States highway with two sections, the first southern section runs about 848 miles (1,365 km) all the way from Flagstaff, Arizona towards the southern entry of Yellowstone National Park.
. The northern section runs for 404 miles (650 km) all the way from the northern entrance of Yellowstone National Park towards Montana. Previous to 1992 U.S. 89 was a Mexico to Canada border-to-border highway that begins at Nogales in Arizona.