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 179 Arizona State Route 179 State Route 179, also known as SR 179, the Red Rock Scenic Byway, a north–south state highway in Arizona, United States, running from Interstate 17 to SR 89A in Sedona, entering Coconino County from Yavapai County. In 2006, the US Dept. of Transportation awarded SR 179 its highest designation within the National Scenic Byways Program: the All-American Road designation, due to the red rock and sandstone formations through which it travels along its length within the hills of the Coconino National Forest. The All-American Road designation also signifies to the travelling public that this is a