Lac de Mauvoisin

Lac de Mauvoisin
View of the lake from the dam, July 2008
Location	Valais
Coordinates	45°59′53″N 7°20′58″E / 45.99806°N 7.34944°E / 45.99806; 7.34944Coordinates: 45°59′53″N 7°20′58″E / 45.99806°N 7.34944°E / 45.99806; 7.34944
Lake type	reservoir
Primary outflows	Dranse de Bagnes
Catchment area	113.5 km²
Basin countries	Switzerland
Max. length	4.9 km
Surface area	2.08 km²
Max. depth	180 m
Surface elevation	1,961 m

Lac de Mauvoisin is a lake in the canton of Valais, Switzerland. The reservoir is formed by the Mauvoisin Dam, which is 250 m high. The dam is currently the 13th highest in the world, and the third highest arch dam. It was built in 1951–1957, and raised by 13.5 m in 1991. The reservoir lies in the upper Val de Bagnes, to the east of the Grand Combin.

Mauvoisin Dam, with Mont Blanc de Cheilon in the background

Dranse de Bagnes, a stream flowing from the Mauvoisin lake

External links

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