The Ider River (Mongolian: Идэр гол, Ider gol, or Идэрийн гол, Ideriyn gol, "Young River") is a river in the Khövsgöl and Zavkhanaimags in northwestern Mongolia and is, together with the Delger mörön river, one of the sources of the Selenga river. It is 452 kilometres (281 mi) long, and has a drainage basin of 24,600 square kilometres (9,500 sq mi).[1] The source is in the Khangai range, the confluence with the Delgermörön is in Tömörbulag. The river is frozen 170–180 nights per year. There is a wooden bridge, which was built in 1940, near Jargalant and a concrete bridge in Galt.

Usage
In 2014, around 0.5 million m3 of water was withdrawn from the river for domestic, livestock, cropland and industrial use.[2]
See also
References
- ↑Идэр, Great Soviet Encyclopedia
- ↑"Overview of Mongolia's Water Resources System and Management"(PDF). Asian Development Bank. July 2020. Retrieved 5 April 2025.
- Tributaries of the Selenga
- Rivers of Mongolia
- Geography of Khövsgöl Province
- Geography of Zavkhan Province
- Asia river stubs
- Mongolia geography stubs