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
Interstate 10 in Arizona were laid out along railroad tracks, and US 60/US 70 was routed mostly parallel to the Santa Fe rail tracks east of Wickenburg, and the Arizona and California Railway west to Vicksburg. The two old federal routes then struck west across the desert and state line, picking up the Southern Pacific mainline at Indio, California, and I-10 overlies the old roads most of that distance. Moving east from the California line at Ehrenburg, I-10 follows the old route of US 60/US 70 for the first east from Blythe, California. In 1960, this western-most stretch of I-10 was built from near