The Baisuntau mountain range (; ) is the southwestern continuation of the Gissar Mountains, in southeastern Uzbekistan. This in turn continues in a southwesterly direction with the Kugitangtau chain.
Geography The Baisuntau extends for a length of approximately in a northeast/southwest direction. It culminates at an elevation of . From its northwestern and northern slopes arise several left-hand tributaries of the Kashkadarya River, including the Akdarya. The south-eastern slope of the mountain range is drained by the Surkhandarya river system.
Geology The mountain range is made up of limestone, sandstone, and clay. The lower slopes are covered by semi-desert type vegetation; higher up there are juniper forests and alpine meadows.
At the southern end of the mountain range is the Teshik-Tash cave, a famous archaeological site. Other caves in the region are: Boybuloq (14.2 km long, 1,415 m deep), Festivalnaya (16 km long, 625 m deep) and the Dark Star cave (9.5 km long, 858 m deep), believed to be the longest cave in Uzbekistan, and possibly the deepest in the whole world.
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