Tariat

lake in Mongolia

right|thumb|Tariat sum center and lava fields from the Khorgo volcano Tariat (; ) is a district of Arkhangai Province in central Mongolia. As of 2009 it had a population of 5,086 (mainly Chalcha), 644 of whom lived in the village of Tariat.

Khorgo () is a dormant volcano in the Taryatu-Chulutu volcanic field in Tariat District, Arkhangai Province, Mongolia. Khorgo lies east of the Terkhiin Tsagaan lake and together they are the core of the Khorgo-Terkhiin Tsagaan Nuur National Park. The surrounding park has been a protected area since 1965 as a nature reserve, becoming fully protected in 1994/1997 as a national park, in order to safeguard the scenery and the endangered flora and fauna of the area.