Core of the Khorgo-Terkh National Park, "Khorgo" extinct volcano called "KhorgynTogoo" (Khorgo crater) among locals, is located in the Tariat soum of Arkhangai province in central Mongolia.
The volcano was active around 9000 years ago, and it is considered to have been the last active volcano in Mongolian territory to have erupted. When it erupted, its lava flown 100km to Tariat river and Chuluut river banks in 20-30kms width. The crater diameter is 200m and its depth is approximately 100m, with 50 degree descent.
Khorgo is abundant in beautiful scenery of mountains, cliffs rapid streams, rivers, lake, extinct volcanoes, green forests and pastures, where the long haired yaks and horses pasture freely. This attractive landscape has high biological diversity. The mountain came under state protection in 1965, and the area is being preserved as Khorgo-Terkh National Park since 1994. Near the mountain there is a unique “stone gers", which are solidified lava bubbles shaped like a traditional gers. There are approximately 33 smaller volcanoes near the Khorgo Mountain.
