The Kalkutan () or Koluton () is a river of the Akmola Region, Kazakhstan. It has a length of and the size of its basin is .[ Nature of Kazakhstan Encyclopedia / General editor. B. O. Jacob. - Almaty: "Kazakh Encyclopedia" LLP, 2011. T.Z. - 304 pages. ISBN 9965-893-64-0 (T.Z.), ISBN 9965-893-19-5]
Course
The Kalkutan is a right tributary of the Ishim. It has its sources in lake
Shortankol, by Novorybinka village. The river flows roughly westwards all along its course. It joins the right bank of the Ishim a little to the north of Kalkutan railway station.
Its main tributaries are the long Talkara, the long
Boksyk, the long Ashchysai, and the long Arshaly from the right.
See also
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List of rivers of Kazakhstan
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Balyktykol (Shortandy District)
