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Lac de Cleuson is a 
reservoir
A reservoir (; from French ''réservoir'' ) is an enlarged lake behind a dam. Such a dam may be either artificial, built to store fresh water or it may be a natural formation.
Reservoirs can be created in a number of ways, including contro ...
in the municipality of Nendaz
Nendaz is a municipality in the district of Conthey in the canton of Valais in Switzerland.
History
Nendaz is first mentioned in 984 as ''Nenda''. It was also known under its German name ''Neind'' though that name is no longer used.
Geograph ...
, Valais
Valais ( , , ; frp, Valês; german: Wallis ), more formally the Canton of Valais,; german: Kanton Wallis; in other official Swiss languages outside Valais: it, (Canton) Vallese ; rm, (Chantun) Vallais. is one of the 26 cantons forming the S ...
, Switzerland
). Swiss law does not designate a ''capital'' as such, but the federal parliament and government are installed in Bern, while other federal institutions, such as the federal courts, are in other cities (Bellinzona, Lausanne, Luzern, Neuchâtel ...
. Its surface area is . Water from the reservoir is often pumped into the Grande Dixence Dam
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The Grande Dixence Dam is a concrete gravity dam on the Dixence (river), Dixence at the head of the Val d'Hérémence in the canton of Valais in Switzerland. At high, it is the List of tallest dams in the world, tallest gravity dam in ...
's reservoir, Lac des Dix, for use in hydroelectricity
Hydroelectricity, or hydroelectric power, is electricity generated from hydropower (water power). Hydropower supplies one sixth of the world's electricity, almost 4500 TWh in 2020, which is more than all other renewable sources combined an ...
production.
See also
*List of lakes of Switzerland
This article contains a sortable table listing all major lakes of Switzerland. The table includes all still water bodies, natural or artificial, that have a surface area of at least , regardless of water volume, maximum depth or other metric. The ...
*List of mountain lakes of Switzerland
This is a list of high-altitude lakes in Switzerland. It includes all significant lakes, natural or artificial, with an area over 4 hectares and a height over 800 metres above sea level. This height approximately corresponds to the transiti ...
External links
* *Swiss Committee on Dams, Lac de Cleuson - https://web.archive.org/web/20100715210229/http://www.swissdams.ch/dams/damForm/default_e.asp?ID=31 *Walk from Siviez to the dam of Lac de Cleuson - http://myswitzerland.flaggy.ch/nendaz/eng/cleuson-e.htm Reservoirs in Switzerland Lakes of Valais {{valais-lake-stub