Irtysh River
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| Irtysh River | |
|---|---|
 A map of the Irtysh river basin | |
| Location | |
| Country | Mongolia, China, Kazakhstan, Russia |
| Physical characteristics | |
| Source | |
| - location | Altay Mountains |
| Mouth | |
| - location | Ob River |
| Length | 4,248 km (2,640 mi) |
| Basin size | 1,643,000 km2 (634,000 sq mi) |
| Discharge | |
| - average | 2,150 m3/s (76,000 cu ft/s) (near Tobolsk) |
The Irtysh River (Russian: Иртыш; Kazakh: Ertis / Ертiс; Chinese: 额尔齐斯河 / É'ěrqísī hé; Mongolian: Эрчис мөрөн, "Twirl"; Tatar: Cyrillic Иртеш, Latin İrteş) is a river in Siberia and Kazakhstan. It is the main tributary of the Ob River. The main tributary of the Irtysh is the Tobol River. The Ob-Irtysh forms a major drainage basin in Asia, and covers most of Western Siberia and the Altay Mountains.
