Arizona State Route 64 a route from Williams to the Grand Canyon. In 1935, the highway was extended to the east from the Grand Canyon to US 89. In 1961, the highway was extended further east from US 89 through Tuba City to the New Mexico state line. In 1965, the portion from Teec Nos Pos was renumbered to SR 504 to match New Mexico, which would be renumbered again in 1987 to US 64. In 1965, the section to the east of US 89 became US 164, and would later be renumbered to US 160 in 1969. Arizona State Route 64 State Route
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