Lac de Sanetsch

Lac de Sanetsch
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Location	Gsteig, Valais
Coordinates	46°21′27″N 7°17′44″E / 46.35750°N 7.29556°E / 46.35750; 7.29556
Type	reservoir
Catchment area	10.7 km2 (4.1 sq mi)
Basin countries	Switzerland
Surface area	29 ha (72 acres)
Surface elevation	2,034 m (6,673 ft)

Lac de Sanetsch (also Lac de Sénin, German: Sanetsch See) is a reservoir below Sanetsch Pass in Valais, Switzerland. Its surface area is 29 ha (72 acres). The Sanetsch dam was built in 1965. The gravity dam has a height of 42 metres (138 ft).