Wuwei is located in northwest central Gansu province. In the north it borders Inner Mongolia, in the southwest, Qinghai. Its central location between three western capitals, Lanzhou, Xining, and Yinchuan makes it an important business and transportation hub for the area. Because of its position along the Hexi Corridor, historically the only route from central China to western China and the rest of Central Asia, many major railroads and national highways pass through Wuwei. Its importance as a stop along the Silk Road made it a crossroads of cultures and ethnicities from all over central Asia. Numerous Buddhist grottoes and temples in the area attest to its role as a path for bringing Buddhism from India and Afghanistan to China.