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Klöntalersee is a natural 
lake
A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much lar ...
in the canton of Glarus
The canton of Glarus (german: Kanton Glarus rm, Chantun Glaruna; french: Canton de Glaris; it, Canton Glarona) is a canton in east central Switzerland. The capital is Glarus.
The population speaks a variety of Alemannic German.
The majority ...
, Switzerland and covers the major part of the valley floor. Since 1908, it has been used as 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 control ...
for electricity production. The dam's construction substantially increased the lake's volume.
Klöntalersee is drained by the Löntsch, a left tributary of the Linth.
See also
* List of lakes of Switzerland *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 transit ...
External links
* * Lakes of the canton of Glarus Lakes of Switzerland LKlontalersee {{Glarus-lake-stub