Khar-Us Lake is a lake in western Mongolia in the Great Lakes Depression. It is the upper one in a system of the interconnected lakes: Khar-Us, Khar, Dörgön, Airag and Khyargas.
Its area value (1,852 km²) includes the island Agbash (or Ak-Bashi, white head) area (274 km²), so the water surface area is 1,578 km² only.
Some sources are using different Khar-Us Lake Lake statistics values:
* Water level: 1,160.08 m
* Surface area: 1,496.6 km²
* Average depth: 2.1 m
* Volume: 3.12 km³.
Surface output Groundwaterinflow-outflow Retentiontime, years
Precipitation Inflow Evaporation Outflow
56.4 1,979.2 942.7 675.3 -417.6 1.1
Primary inflow is the Khovd River, which creates a large river delta.
So called Genghis Khan's wall runs along the western shore of the Khar-Us Lake. It is possible to find it at the Google Map and Google Earth satellite maps .