| Telmen Lake | |
| Pushpin Map: | Mongolia |
| Location: | Zavkhan Province |
| Basin Countries: | Mongolia |
| Length: | 28km (17miles) |
| Width: | 16km (10miles) |
| Area: | 194km2 |
| Max-Depth: | 27m (89feet) |
| Volume: | 2.671km3 |
| Elevation: | 1789m (5,869feet) |
Telmen Lake (Chinese: 特勒门湖) is a saltwater lake in Zavkhan Province, Mongolia. The water salinity is 6.49-7.61‰. Three islands are located in the lake, which is a gathering point for migratory birds. The lake has been designated an Important Bird Area by BirdLife International.
Average temperature ranges from -32 °C in January to 12 °C in July.[1] From 6,210 to 3,960 years ago, as determined by radiocarbon dating, Lake Telmen was between 15 and 20m shallower than it is at present.[2]