Lac de Mauvoisin is a reservoir in the canton of Valais, Switzerland. The reservoir is formed by the Mauvoisin Dam, which is 250 metres (820 ft) high. The dam is the 11th highest in the world, and the 6th highest arch dam. It was built in 1951–1957, and raised by 13.5 metres (44 ft) in 1991.

Lac de Mauvoisin
View of the lake from the dam, July 2008
Lac de Mauvoisin Show map of Canton of Valais Lac de Mauvoisin Show map of Switzerland Lac de Mauvoisin Show map of Alps
Location	Valais
Coordinates	45°59′53″N 7°20′58″E
Type	reservoir
Primary outflows	Dranse de Bagnes
Catchment area	113.5 km2 (43.8 sq mi)
Basin countries	Switzerland
Max. length	4.9 km (3.0 mi)
Surface area	2.08 km2 (0.80 sq mi)
Max. depth	180 m (590 ft)
Surface elevation	1,961 m (6,434 ft)

The reservoir lies in the upper Val de Bagnes, between the massif of the Grand Combin, one of the highest mountains of the Alps, and La Ruinette. The highest peak visible from the lake is the Combin de la Tsessette (4,135 metres (13,566 ft)).

Gallery

• 
  Mauvoisin Dam, with Mont Blanc de Cheilon in the background
• 
  Dranse de Bagnes, a stream flowing from the Mauvoisin lake

See also

• List of lakes of Switzerland
• List of mountain lakes of Switzerland

External links

This article includes a list of references, related reading or external links, but its sources remain unclear because it lacks inline citations. (November 2014)

• Swiss Dams: Profile of Mauvoisin
• Media related to Lac de Mauvoisin at Wikimedia Commons

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