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
Arizona State Route 347 Arizona State Route 347 State Route 347 (SR 347), also known as John Wayne Parkway, is a long, north–south state highway in central Arizona. The route begins at SR 84 and heads north. It passes through Maricopa, meeting SR 238. The route ends at an interchange with Interstate 10 (I-10) south of Chandler. It primarily serves as the major road to Maricopa; much of the road lies within the Gila River Indian Community, with another short stretch through the Ak-Chin Indian Community. The road was built in the late 1930s and established as a state highway in the 1990s. On