Tian Shan Mountains and Glaciers, Xinjiang, China. These glaciers are the prime source for several rivers in Xinjiang that ultimately end up in Kazakhstan. Due to climatic conditions these glaciers are quickly being depleted. The Illi River which originates in this glacial range is threatened not only by overuse but by a reduction in its glacial source. All of the glaciers in the region are facing the same conditions and will seriously affect the long term availability of water.