Abstract: The author provides description of fauna of Kazakhstan's mountainous areas. Fauna of the mountain taiga is also typical for the forests of South Siberia. Ungulate species such as musk deer and ibex are common for rocky taiga areas. In the Altai, ibex, musk deer, and wild sheep are preyed on by dhole and snow leopard and more typical species such as glutton and wolf. Ibex, argali, and irbis are typical for Transili Ala-Tau and West Tien Shan. Tien Shan is the only area of the USSR with quite many irbis preserved. The ridges of this mountainous area located in Kazakhstan are very likely to be an area the most densely populated by snow leopards within the predator's habitat.