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 73 Arizona State Route 73 State Route 73, also known as SR 73, is a north–south state highway primarily serving the Fort Apache Indian Reservation in eastern Arizona. SR 73 begins at a junction with the U.S. Route 60 / State Route 77 concurrency near Carrizo, travels southeast to Fort Apache and Whiteriver, then bends north-northeast until intersecting State Route 260 near the Hon-Dah Resort Casino. Apart from its termini, the current SR 73 intersects no other US or state routes. The clockwise (southern) terminus of SR 73 is located at a junction with US 60 southwest of Show Low. From