Tuyuhun, also known as Henan and Azha, was a dynastic monarchy established by the nomadic peoples related to the Xianbei in the Qilian Mountains and upper Yellow River valley, in modern Qinghai, China
Rouran Khaganate, Tuyuhun, Yueban and Northern Wei
The Qilian Mountains, along with the Altyn-Tagh sometimes known as the Nan Shan as it is to the south of the Hexi Corridor, are northern outliers of the Kunlun Mountains, forming the border between th
Qilian Mountains in Qilian County, Qinghai