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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  Lac de Mauvoisin  Lac de Mauvoisin | |
| 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)).
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Mauvoisin Dam, with Mont Blanc de Cheilon in the background
Dranse de Bagnes, a stream flowing from the Mauvoisin lake
 | 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
 | This article related to a lake in Valais is a stub. You can help Wikipedia by expanding it. |
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