Ung
The Ungo River descends from the wooded ranges of Transbaikalia to join the Khilok, a tributary of the Selenga. Its source lies high on the western part of the Yablonovy Mountains. Spring snowmelt and summer rains swell the river as it makes its way through the valleys, gathering smaller streams along its course. Its waters ultimately reach Lake Baikal through the Khilok and Selenga.