Griessee
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Location	Ulrichen, Valais
Coordinates	46°27′27″N 8°22′12″E / 46.45750°N 8.37000°E / 46.45750; 8.37000
Type	reservoir
Primary outflows	Aegina
Catchment area	10.6 km2 (4.1 sq mi)
Basin countries	Switzerland
Max. length	0.9 km (0.56 mi)
Surface area	0.555 km2 (0.214 sq mi)
Max. depth	66 m (217 ft)
Water volume	18.6 million cubic metres (15,100 acre⋅ft)
Surface elevation	2,386 m (7,828 ft)

Griessee is a lake in Valais, Switzerland. The reservoir is located in the municipality of Ulrichen and can be reached by road from Nufenen Pass. The lake is fed by the Gries Glacier. Its surface area is 55.5 ha (137 acres).^[1]

The gravity dam Gries was built in 1965.

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

• Media related to Griessee at Wikimedia Commons

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