In Russia 2747997 lakes with total area of 408 856 km2 (excluding the Caspian Sea). The largest lake - the Caspian Sea. Of the lakes in the traditional sense of the largest in the area are Baikal (31,722 km2), Lake Ladoga (17 872 km2), Onega (9693 km2) and Taimyr (4560 km2), and by the volume: Lake Baikal (23,516 km3), Lake Ladoga (838 km3), Onega (292 km3) and Khantayskoye (82 km3), with about 96% of all stocks of lake water is concentrated in eight major lakes, of which 95.2% is only one Baikal. On the territory of Russia are in operation about 30 thousand regulating river runoff water reservoirs and ponds with overall volume of more than 800 km3. The coastline only reservoirs is 75.4 thousand km. By area, the water table of the ten largest reservoirs of the world are Kuibyshev (6150 km2), Bratsk (5470 km2), Rybinsk (4550 km2), Volgograd (3117 km2) and Krasnoyarsk (2000 km2).