Route 66 was one of America’s first transcontinental highways, linking Chicago and Los Angeles with nearly 400 miles passing through Arizona. Along its path, it linked the “Main Streets” of towns and cities.

This 42-mile stretch of two-lane paved blacktop in Arizona is one of the last and best-preserved segments of the original Route 66. Almost all variety of vehicles are suitable to traverse the segment however wider vehicles (e.g., RVs) should use caution. The segment also has a length requirement of no more than 40 feet over Sitgreaves Pass between Golden Valley and the historic ghost town of Oatman There is signage in Golden Valley to remind travelers of the restrictions.

The byway passes through public and private lands, wilderness, valleys, and Main Streets. Please respect all lands and property. Signs posted along the byway range from 20 to 45 miles per hour, obey all posted signs and traffic laws. Any road-worthy vehicle can drive the byway since it is paved asphalt, but automatic transmission is recommended due to steep grades.

This portion of the highway once included one of the most fearsome obstacles for “flatland” travelers in the 1930s. These include the hairpin curves and steep grades of Sitgreaves Pass, which characterize Old Route 66 as it makes its way over the Black Mountains of western Arizona.

The Route 66 Historic Back Country Byway passes between the Mount Nutt Wilderness and the Warm Springs Wilderness. Visitors can admire the Black Mountains along the way.

Along the byway, mileposts 15, 17.1, 33.8 and 34.7 all provide access to the Warm Springs Wilderness, which offers offer outstanding opportunities for primitive recreation like dispersed camping, hiking, and horseback riding. Four-wheel drive is required for all access routes to the wilderness.

Nearby attractions and amenities include Oatman and the downtown Kingman Visitor Center.