According to the first investigation of Quaternary glacial and lake history to the Hoh Xil region located in the interior of Qinghai-Xizang (Tibet) Plateau, it is obvious that the development and evolution of Quaternary glaciers is not only coincident with other places of the Qinghai-Xizang Plateau due to the co-control of the global climate changes and the uplift process of the plateau throughout the period of Quaternary, but also exists the distinctive regional features. During the Pleistocene, three glac...