Khentii Mountains
Burkhan Khaldun means the "God Mountain" and is also called Khentii Khan (The King of the Khentii Mountain range). It is one of the Khentii Mountains in the Khentii Province of northeastern Mongolia. It is the highest mountain of the region, rising to an elevation of , and is crescent-shaped. It is the source of several rivers: the Onon and Kherlen rivers flow into the Amur, which has its outfall in the Pacific Ocean; and the rivers Tuul, Kharaa and Yeruu flow northwards to join the Selenge, which empties into the Arctic Ocean. It is in a complex ecosystem with unique biodiversity which is defined as a "transition zone from Siberian permafrost land forms to great steppe".