near Lupton, US 66 traveled the same basic route I-40 takes today, through Flagstaff, Winslow and Holbrook. Save for several city streets east of Flagstaff, most of US 66 has either been cut off, abandoned, destroyed or rebuilt into sections of I-40. Notable exceptions include the original route through Oatman, SR 66, multiple current and former I-40 Business Loops and Townsend–Winona Road from US 89 to I-40 in Winona. Several sections of the highway no longer part of the Arizona State Highway System are listed on the National Register of Historic Places (NRHP). The following route description roughly follows the path US 66 would have traversed across Arizona in 1940. California border to Kingman US 66 entered Arizona from Needles, California, on the Old Trails Bridge across the Topock Gorge and Colorado River, within the Havasu National Wildlife Refuge, arriving in Topock, Arizona. The route headed northeast, where it crossed the path of present-day I-40 and the BNSF Railway (formerly the Atchison, Topeka and Santa Fe Railway). The highway then curved east for less than a mile, before curving directly north on Mohave County Route 10 (also known as Oatman Highway), past present-day Golden Shores through Bureau of Land Management-managed federal lands. About north of Golden Shores, US 66 arrived at the foothills of the Black Mountains, following the base of the those mountains for before entering them. Shortly afterward, the old highway arrived in the town of Oatman, passing through the center of the old mining town. North of Oatman, US 66 turned in a generally eastward direction winding its way up and through the Black Mountains over treacherous curves. US 66 passed through the small mining community of Goldroad and the adjacent mine, before continuing on its winding path up the mountainsides. Less than east of the Goldroad Mine, US 66 crossed over Sitgreaves Pass at an elevation of , making its slow winding descent towards the other side of the Black Mountains. The highway finally exited the mountains at Cold Springs Station, heading straight east before curving northeast again, away from the mountains. As it headed northeast, US 66 entered the town of McConnico, crossing the path of present-day I-40 again, before turning it turned north, and paralleled the Santa Fe Railway and curving through a small set of mountains. The highway and railroad then arrived in Kingman; US 66 followed Main Street (now Andy Devine Avenue).