Editing Irtysh (section)

==Geography==
[[File:Operational Navigation Chart D-5, 6th edition.jpg|left|thumb|Map including the lower reaches of the Irtysh River]]
[[Image:Irtish v Omsk.JPG|thumb|The Irtysh in [[Omsk]]]]
[[Image:Pavlodar-Fiume Irtysh.JPG|thumb|The Irtysh near [[Pavlodar]] in [[Kazakhstan]]]]
From its origins as the ''Kara-Irtysh'' (Black Irtysh) in the [[Mongolia]]n Altay mountains in [[Xinjiang]], China, the Irtysh flows northwest through [[Lake Zaysan]] in [[Kazakhstan]], meeting the [[Ishim (river)|Ishim]] and Tobol rivers before merging with the [[Ob]] near [[Khanty-Mansiysk]] in western Siberia, [[Russia]] after {{convert|4248|km}}.

The name '''Black Irtysh''' (''Kara-Irtysh'' in Kazakh, or ''Cherny Irtysh'' in Russian) is applied by some authors, especially in Russia and Kazakhstan, to the upper course of the river, from its source entering Lake Zaysan. The term '''White Irtysh''', in opposition to the Black Irtysh, was occasionally used in the past to refer to the Irtysh below lake Zaysan;<ref>{{harvnb|Abramof|1865|p=65}}, and the map before p. 65.</ref> now this usage is largely obsolete.

===Main tributaries===
The largest tributaries of the Irtysh are, from source to mouth:
{{div col|colwidth=15em}}
* [[Kelan River|Kelan]] (right)
* [[Burqin (river)|Burqin]] (right)
* [[Kalzhyr]] (right)
* [[Kürshim]] (right)
* [[Naryn (Irtysh)|Naryn]] (right)
* [[Bukhtarma]] (right)
* [[Ulba]] (right)
* [[Uba (river)|Uba]] (right)
* {{ill|lt=Shar|Shar River|de|Schar (Fluss)}} (left)
* [[Chagan (Irtysh)|Chagan]] (left)
* [[Om (river)|Om]] (right)
* [[Tara (Irtysh)|Tara]] (right)
* [[Uy (Irtysh)|Uy]] (right)
* [[Osha (river)|Osha]] (left)
* [[Shish (river)|Shish]] (right)
* [[Ishim (river)|Ishim]] (left)
* [[Tobol]] (left)
* [[Noska]] (left)
* [[Demyanka]] (right)
* [[Konda (river)|Konda]] (left)
{{div col end}}