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 64 Arizona State Route 64 State Route 64 (SR 64) is a state highway in the northern part of the U.S. state of Arizona. It travels from its western terminus in Williams to its intersection with U.S. Route 89 (US 89) in Cameron. SR 64 serves as the entrance road to the South Rim of Grand Canyon National Park; from Williams to Grand Canyon Village, the highway travels from the south to north, and from Grand Canyon Village to Cameron, it travels from the west to the east. While the road is technically not considered a state highway within national park