Ishim Steppe
Ishim Steppe is a plain in the southern part of Western Siberia, between the Irtysh and Tobol rivers. Administratively it is part of Kurgan, Tyumen, and Omsk oblasts in Russia, and the North Kazakhstan Region in Kazakhstan.
Geography
The plain includes the Ishim, after which it is named. It varies in altitude from to and is composed chiefly of sand and clay deposits of the Neocene era, covered with loess-like loams. The terrain is characterized by a series of crests and hollows, with the ridges extending from the northeast to the southwest. The almost long Kamyshlov Log, a trench where lake Bolshoy Tarangul lies, stretches roughly from east to west across the plain.In the lowlands and valleys there are numerous fresh, bitter, and salt lakes, such as Siletiteniz, Kyzylkak, Medvezhye, Stanovoye, Teke, Ebeyty, Tavolzhan and Shaglyteniz, as well as the Krutinsky Lakes, including lakes Tenis-Saltaim, Sazykul and Ik. The smaller lakes and rivers dry up in the summer.