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n. - An Asian river that rises in the Altai Mountains in northern China and flows generally northwest to become a tributary of the Ob River.

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Usage examples (37)
  • Waterways: 3,900 km note: on the Syrdariya (Syr Darya) and Ertis (Irtysh) rivers
  • The Ob, Irtysh and Enisey rivers and their numerous tributaries have their headwaters here.
  • Several large rivers, such as the Ural and Irtysh and their tributaries, traverse the region.
  • Kazakhstan's hydroelectric facilities are located primarily along the Irtysh river, which flows from China across northeast Kazakhstan.
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