State Route 78 (Arizona–New Mexico) State Route 78 (Arizona–New Mexico) Arizona State Route 78 (SR 78) and New Mexico State Road 78 (NM 78) are a pair of adjoining state highways located in eastern Arizona and western New Mexico linking U.S. Route 191 (US 191) and Arizona State Route 75 near Greenlee County Airport to US 180 northwest of Cliff, New Mexico. It is also known in its Arizona stretch as Mule Creek Road. The western terminus of SR 78 is located at a junction with US 191 and SR 75 at Three Way, Arizona near Greenlee County Airport. The highway heads northeast from this
Former state routes in Arizona 1970 to 1992, SR 360 was assigned along the Superstition Freeway from Interstate 10 in Tempe through Mesa to U.S. Route 60 in Apache Junction. In 1992, US 60, which entered the Phoenix area on surface streets north of SR 360, was realigned onto the Superstition Freeway, replacing SR 360 in its entirety. State Route 364, also known as SR 364, was a state highway in the northeastern corner of the state of Arizona, starting in the town of Teec Nos Pos and ending at the state-line near the Four Corners. It first appeared on a state map in 1962