Mönkh Saridag, also spelled as Munku-Sardyk, is the highest mountain in the Sayan Mountains of Asia. It is 3,491 metres (11,453 ft) tall and is on the international border between Mongolia and Russia. It is also the highest mountain in Buryatia and the highest mountain in Mongolia's Khövsgöl Province. On the southern side, the tree line is at 2000 meters, on the northern side at 2200 meters.