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a river in the Altai, in Gorno-Altai Autonomous Oblast. The Chulyshman is 241 km long and drains an area of 16,800 sq km. In its upper course it flows across the Chulyshman Plateau, passing through a series of lakes, the largest of which is Dzhulukul’ (area, 29.5 sq km). It then enters a deep valley between the Chulyshman Plateau and the Ulagan Plateau. The river empties into Teletskoe Lake. It is fed by mixed sources, chiefly by snow; high water occurs between May and September. The mean flow rate is 158 cu m per sec. The river freezes over between late October and early December, and the ice breaks up between late March and early May. The principal tributary of the Chulyshman is the Bashkaus.