Tannu Ola Mountains

The Tannu-Ola Mountains extend across southern Tuva, separating the Yenisei watershed to the north from the Uvs Nuur basin to the south. Their slopes descend towards steppe and salt lake on one side and the forested Sayan country on the other. The range appears as the Tanglu Mountains in the thirteenth-century Secret History of the Mongols; its later name preserves an old Turkic root associated with wonder.