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Through which countries does the Irtysh River flow before joining the Ob River?
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Ob River
The Ob and Yenisey river basins and their drainage networks.
The Irtysh River flows through three countries before joining the Ob River:
- China: The river rises in the Altai Mountains within the Xinjiang region of northwestern China.1
- Kazakhstan: After crossing the border, it flows northwest through Kazakhstan, where it is known as the Ertis River.1
- Russia: The river enters Siberia, Russia, flowing through cities such as Omsk before eventually meeting the Ob River near Khanty-Mansiysk.1