Wushaoling, Tianzhu, Gansu 甘肃天祝乌鞘岭
Wushaoling, in Tianzhu Tibetan Autonomous County, Gansu, is a spur of the eastern Qilian Mountains whose pass lies at about 3,000 metres. It divides the central Gansu loess plateau from the Hexi Corridor and was a key pass on the ancient Silk Road from Chang’an into the corridor. It also marks the line between monsoon and non-monsoon climates and between rivers that reach the sea and those that do not; remains of the Han Great Wall survive at its foot.
