Surface area: 25,194 ha
Elevation: 1,889-2,612 m

Protection status: Unprotected.

Site description: The freshwater lake, Khuvsguliin Sangiin Dalai Lake is located in the north foothill of Bulnain Mountains on the border Zavkhan and Khuvsgul provinces. The lake is fed by about 20 rivers and streams but there is no outflow. It has wetlands along its tributaries. The water level increase led to submerge Dalain Ovoo and Khar Nuden islands. The major use of surrounding area is livestock grazing.

Importance for birds: Globally endangered Great Bustard (Otis tarda) occurs around the lake. Whooper Swan (Cygnus Cygnus), Bar-headed Goose (Anser indicus) and Whitetailed Eagle (Haliaeetus albicilla) nest and lay eggs at the site. Whooper Swan (Cygnus Cygnus) and Ruddy Shelduck (Tadorna ferruginea) gather here in flocks, exceeding 1% of their flyway populations.

Special flora and fauna: Globally endangered Pallas's Cat (Felis manul) occurs at the site. Grey Wolf (Canis lupus), Corsac Fox (Vulpes corsac) and Red Fox (V. vulpes), listed in Red Data Book of Mongolia also occur here.