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| Tannu-Ola Mountains | |
|---|---|
| Таңды-Уула /Tañdı-Uula | |
 | |
| Highest point | |
| Peak | Unnamed |
| Elevation | 3,061 m (10,043 ft) |
| Dimensions | |
| Length | 1,300 km (810 mi) |
| Geography | |
  Tannu-Ola Mountains Location in the Tuva Republic, Russia | |
| Country | Russia |
| Federal subject | Tuva |
| Range coordinates | 51°04′12″N92°23′25″E / 51.07000°N 92.39028°E /51.07000; 92.39028 |
| Parent range | South Siberian System |
| Geology | |
| Rock types |
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TheTannu-Ola mountains[a] orTangdy-Uula mountains[b] are a mountain range in southernSiberia, in theTuva Republic ofRussia. It extends in an east–west direction and curves along theMongolian border. Its highest peak reaches 3,061 m (10,043 ft). The Tannu-Ola mountains are mentioned in the 13th-century textThe Secret History of the Mongols under the name "Tanglu mountains" (唐麓), and also in theJāmiʿAl-tawārīkh ofRashid-al-Din Hamadani (1247–1318) under the name "Toungat mountains" (تنغات). By theQing dynasty the name has been changed to Tangnu (唐努) mountains, from which the modern name is derived. All names are probably rooted in the old Turkic wordtaŋ - "wonder, awe, wondrous."
The northern slopes are part of the watershed of theYenisei River, facing the westernSayan Mountains. The eastern end touches the large watershed of theSelenge River inMongolia.The foothills of the southern slopes cross into Mongolian territory. They form the northern limits of a large basin ofsteppes that extends south to the MongolianAltay Mountains and includes the salt lakeUvs Nuur. The western end is located near the northern Altay Mountains in the RussianAltai Republic.[1]
