Gigerwaldsee

Gigerwaldsee
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Location	Canton of St. Gallen
Coordinates	46°54′51″N 9°22′24″E / 46.91417°N 9.37333°E / 46.91417; 9.37333
Type	reservoir
Catchment area	52.06 km2 (20.10 sq mi)
Basin countries	Switzerland
Surface area	0.71 km2 (0.27 sq mi)
Max. depth	135 m (443 ft)
Water volume	35.6 million cubic metres (28,900 acre⋅ft)
Surface elevation	1,335 m (4,380 ft)
Location
Interactive map of Gigerwaldsee

Gigerwaldsee is a reservoir in the Calfeisental valley, located in the municipality of Pfäfers, Canton of St. Gallen, Switzerland. The reservoir has a volume of 35.6 million m³ and covers a surface area of 71 ha (180 acres).

The reservoir was formed by the arch dam Gigerwald, which was completed in 1976, standing at a height of 147 m.