the state of Arizona in the United States. It goes from Nogales at the Mexico border north to Tucson. The route is 63.35 miles (101.95 km) long. Route Log
an Interstate Highway in the state of Arizona in the United States. It goes from Phoenix north to Flagstaff. The route is 145.76 miles (234.58 km) long
Committee on U.S. Route Numbering (June 26, 1985). "Route Numbering Committee Agenda" (PDF) (Report). Duluth, MN: American Association of State Highway and
one or two-digit route number. Even (0, 2, 4, 6, or 8) route numbers are given to east/west routes, with the smaller numbered routes in the south (I-10)
State Historical Society. April 2011. Archived from the original on September 27, 2020. Retrieved August 4, 2020. "Governor's Information – Arizona Governor