U.S. Route 66 in Arizona U.S. Route 66 in Arizona U.S. Route 66 (US 66, Route 66) covered as part of a former United States Numbered Highway in the state of Arizona. The highway ran from west to east, starting in Needles, California, through Kingman and Seligman to the New Mexico state line as part of the historic US 66 from Santa Monica, California, to Chicago, Illinois. The highway was decommissioned in 1985, although portions remain as State Route 66 (SR 66). In 1914 the road was designated National Old Trails Highway; in 1926 it was re-designated US 66 with the birth of the U.S.
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