| Khar-Us Lake | |
| Pushpin Map: | Mongolia |
| Location: | Khovd aimag, Mongolia |
| Coords: | 48.0333°N 109°W |
| Type: | freshwater |
| Inflow: | Khovd River |
| Outflow: | Chono Kharaikh gol |
| Catchment: | 74500km2 |
| Basin Countries: | Mongolia |
| Length: | 72.2km (44.9miles) |
| Width: | 36.5km (22.7miles) |
| Area: | 1578km2 |
| Depth: | 2.2m (07.2feet) |
| Max-Depth: | 4.5m (14.8feet) |
| Volume: | 3.432km3 |
| Elevation: | 1156.7m (3,794.9feet) |
| Frozen: | November - April |
| Islands: | Agbash (Ak-Bashi) |
| Cities: | Dörgön |
Khar-Us Lake (Mongolian: Хар-Ус нуур|Har-Us nuur;, "Black-Aqua 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. The lake is located in Har Us Nuur National Park.
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.[1]
Some sources are using different Khar-Us Lake Lake statistics values:[2]
| Surface output | Groundwater inflow- outflow | Retention time, years | |||||
|---|---|---|---|---|---|---|---|
| Precipitation | Inflow | Evaporation | Outflow | ||||
| 56.4 | 1,979.2 | 942.7 | 675.3 | align=right | -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 47.8914°N 91.9936°W.