Tobol
Tobol
River in Russia, Kazakhstan
The Tobol (Russian: Тобол, Kazakh: Тобыл Tobyl, Siberian Tatar: Тубыл Tubyl) is a river in Western Siberia (in Kazakhstan and Russia) and the main (left) tributary of the Irtysh. Its length is 1,591 km (989 mi), and the area of its drainage basin is 426,000 km2 (164,000 sq mi).[1]