Lake Teletskoye,Russia:

Lake Teletskoye  is the largest lake in the Altay Mountains and the Altai Republic, Russia, and has depth up to 325 meters. Situated at a height of 434 m (1,424 ft) above the sea level, the lake is 78 km (48 mi) long and 5 km (3.1 mi) wide and lies between the mountain ridges Korbu and Al-tyntu, on the junction of the Sailughem Mountains and the Western Sayans. Its surface area is 233 km2 (90 sq mi); however, due to its considerable depth (325 m, 1,066 ft), the lake contains no less than 40 km³ (9.6 cubic miles) of fresh water. Annual water level fluctuations are estimated at some 348 sm. The lake transparency is high, with the visibility of the lake water ranging from six to fourteen meters.


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