the Lena. The longest tributary of the Kalakan is the 136 km (85 mi) long Tundak on the left and the 96 km (60 mi) long Usmun on the right. The river is...

are the Karkaraly, flowing into lake Karasor, as well as the Sarsu and Tundak. The Taldy flows northwards, its valley forming the eastern limit of the...