Arizona State Route 264 to a gravel road. By the time the route became a state highway in 1961 from Tuba City southeast , the route had been paved. Later that year, SR 264 extended to the border. Arizona State Route 264 State Route 264 (SR 264) is a state highway in northeastern Arizona, that run from a junction with US 160 near Tuba City to the New Mexico state line at Window Rock, where the highway continues as New Mexico State Road 264 (NM 264). The western terminus of State Route 264 is located at its junction with US 160 in Moenkopi, adjacent
Arizona State Route 79 agency, as of 2011 Arizona State Route 79 was the fastest road in the nation, with the fastest 5% of the vehicles using it clocked at an average speed of 88 miles per hour. SR 79 is the section of what was together U.S. Route 80 and U.S. Route 89. US 80 was removed from Arizona in 1989, and US 89 was removed from southern Arizona in 1992. The original SR 79 was designated in 1924 as part of the original state highways from Prescott to Jerome. By 1926, it extended northeast to Flagstaff. In 1941, this was redesignated as