page_title: Tobol
hierarchical_section_title: Tobol
context_page_description: The Tobol is a river and the main tributary of the Irtysh. Its length is 1,591 km, and the area of its drainage basin is 426,000 km².
context_section_description: The Tobol (Russian: Тобол, Kazakh: Тобыл Tobyl) is a river 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).
caption: Map of the Tobol watershed