Interstate 40 in Arizona Interstate 40 in Arizona Interstate 40 (I-40) is an east–west Interstate Highway that has a section in the U.S. state of Arizona, connecting sections in California and New Mexico. The section throughout Arizona is also known as the Purple Heart Trail. It enters Arizona from the west at a crossing of the Colorado River southwest of Kingman. It travels eastward across the northern portion of the state connecting the cities of Kingman, Ash Fork, Williams, Flagstaff, Winslow, and Holbrook. I-40 continues into New Mexico, heading to Albuquerque. The highway has major junctions with U.S. Route 93 (US 93) — the
Arizona State Route 79 the current SR 79. On the afternoon of October 12, 1940, silent film actor Tom Mix died in a car accident on SR 79 (then part of U.S. Route 80) 18.5 miles southeast of Florence, Arizona. Business State Route 79 is a business loop in central Arizona. It lies entirely within the town limits of Florence located in Pinal County. The road begins south of town at its parent State Route 79 near the Central Arizona Project canal and travels northbound on Main St passing a "Y" junction with State Route 287 to Coolidge. The road continues northbound to an