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Which tributaries join the upper Ob River?
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Ob River
The Ob and Yenisey river basins and their drainage networks.
The upper Ob River, which extends from the junction of the Biya and Katun rivers to the confluence of the Tom River, receives several tributaries along its course:
- Left-bank tributaries: The Peschanaya, Anuy, Charysh, and Aley rivers.
- Right-bank tributaries: The Chumysh and Inya rivers.
The upper Ob begins at the confluence of the Biya and Katun in the foothills of the Altai Mountains and flows through regions including Biysk, Barnaul, Kamen-na-Obi, and Novosibirsk.1