Airag Lake

Airag Lake (Mongolian: Айраг нуур, romanized: Airag Nuur, pronounced [ˈæe̯ɾɐ̆k ˈnʊːɾ]) is a lake in western Mongolia in the Great Lakes Depression. It is in a system of the interconnected lakes: Khar-Us, Khar, Dörgön, and Khyargas.

Airag Lake
A satellite image of a lake
Satellite image taken from Landsat-7.
Airag Lake is located in Mongolia
Airag Lake
Airag Lake
LocationUvs aimag, Mongolia
Coordinates48°53′N 93°25′E / 48.883°N 93.417°E / 48.883; 93.417Coordinates: 48°53′N 93°25′E / 48.883°N 93.417°E / 48.883; 93.417
Lake typefreshwater
Primary inflowsZavkhan River, Khüngüin River
Primary outflowsKhyargas Lake
Basin countriesMongolia, Russia
Max. length18 km (11 mi)
Max. width13 km (8.1 mi)
Surface area143.3 km2 (55.3 sq mi)
Average depth5.7 m (19 ft)
Max. depth10 m (33 ft)
Water volume819.6 m3 (28,940 cu ft)
Surface elevation1,030 m (3,380 ft)
Official nameAyrag Nuur
Designated13 April 1999
Reference no.977[1]
Airag Lake is located in Mongolia
Airag Lake
Airag Lake
Airag Lake (Mongolia)

The lake was in the same basin as the Khyargas Lake in ancient times.

The depth of the lake generally varies with the inflow river flow. The lake flows into Khyargas Lake along a 5 km long, 200–300 m wide canal, which does not freeze in winter.

In summer, the lake warms up almost to the very bottom. Even in winter, the temperature remains fairly constant, 1 - 2.5 °C. Compared to other lakes, the water is not very clear.[2]


  1. ^ "Ayrag Nuur". Ramsar Sites Information Service. Retrieved 25 April 2018.
  2. ^ Archived 2012-09-05 at; Айраг нуур