Zavkhan River
Zavkhan River is a river in Mongolia that flows from the Khangai Mountains into Lake Khyargas, and has a draining area of over. The river forms most of the border between the Govi-Altai and Zavkhan aimags. The length of the river is.
During the Mongol Empire, it appears to have been the territory of the family of Möngke Khan, and Jami' al-tawarikh mention that Mongke's son,, was in a river called.