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 Valley residents with access to the airport. The majority of them used SR 143 instead, because of its quick access to and from Interstate 10 and Loop 202. SR 153 did, however, provide a direct link between east Phoenix, such as office developments in the Southbank commercial project, and the city of Tempe. State Route 160 was an east-west state highway in north-central Arizona, starting in the city of Payson and ending. in the city of Show Low, traveling along much of the Mogollon Rim. It first appeared on a state map in 1955 and was decommissioned in 1967 when