The Betpak-Dala is located between the lower reaches of the
Sarysu River, the
Chu River, and
Lake Balkhash. In the north, near the 46°30’ parallel, Betpak-Dala borders on the
Kazakh Uplands, an area of low, rounded, isolated hills. Its area is approximately . To the southwest lies the
Ashchykol Depression. The western part of Betpak-Dala is composed of folded
Mesozoic rock and horizontally layered
Paleogene friable rock (sand, sandstone, clay, and conglomerates). The eastern hilly region has a plicate structure and is composed of Lower
Paleozoic sedimentary-metamorphic rock series and granite. The climate is sharply continental. The annual precipitation is between and , of which only 15 percent occurs in summer. Summers are dry and hot; winters are cold with little snow. The average temperature in January ranges from to , and the average temperature in July ranges from to . There are many shallow, often
Sor-type of saline lakes, such as
Arys,
Buralkynyn Tuzy and
Karakoin. Underground waters, emerging in places, are abundant. The predominant soils are gray-brown desert
solonchak and
solonets. ==Flora==