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 266 Arizona State Route 266 State Route 266 (SR 266) is a highway in Graham County, Arizona that runs from its junction with US 191 south of Safford to Fort Grant. It is an east–west route. The eastern terminus of SR 266 is located on US 191 south of Safford. The highway heads southwest from this intersection before curving towards the west. It briefly curves towards the northwest before curving back towards the west and arriving in Fort Grant. The highway continues towards the west to its western terminus in Bonita. SR 266 has a spur route that heads north from