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 564 Arizona State Route 564 State Route 564, also known as SR 564, is a state highway in northern Arizona serving Navajo National Monument. This highway travels from U.S. Route 160 to Betatakin Ruin; SR 564 derives its number from the former route number of the adjacent stretch of US 160, U.S. Route 164. SR 564 ends at Betatakin; smaller roads travel beyond to Keet Seel. SR 564 is a highway in northern Arizona that connects the Navajo National Monument with US 160. The southern terminus is located at an intersection with US 160 and BIA Route 41, a road maintained