Surface area: 18,568 ha
Elevation: 940-980 m

Protection status: Unprotected.

Site description: The site is located in the south of Namnan Natural reserve, bordering with it. The site extends to the west where valley narrows, to the east until Murun main road and to the south until Selenge River Valley. This wide-open area is mainly used for agriculture and livestock grazing. The major threats at the site are heavy traffic to Murun, degradation of pastureland, unregulated grazing, destruction of eggs and chicks by agricultural machinery and poaching. There are oral reports that wildfire and poaching regularly occur at the Namnan Mountain.

Importance for birds: The site is an important area of breeding for the globally threatened, Great Bustard (Otis tarda). Significant numbers of Demoiselle Crane (Anthropoides virgo) gather around wheat fields during their migration. The riparian forest along the Selenge River provides good habitat for many bird species, to live and stopover during migration.

Special flora and fauna: Nationally endangered Taimen (Hucho taimen) and Northern Pike (Esox lucius) occur at the site.