Stausee Ferden

Stausee Ferden
Stausee Ferden Show map of Canton of Valais Stausee Ferden Show map of Switzerland Stausee Ferden Show map of Alps
Location	Ferden, Valais
Coordinates	46°23′16″N 7°45′26″E / 46.38778°N 7.75722°E / 46.38778; 7.75722
Type	reservoir
Primary inflows	Lonza
Primary outflows	Lonza
Catchment area	139.2 km2 (53.7 sq mi)
Basin countries	Switzerland
Surface area	10.6 ha (26 acres)
Water volume	1.89 million cubic metres (1,530 acre⋅ft)
Residence time	36 hours
Surface elevation	1,311 m (4,301 ft)
Location
Interactive map of Stausee Ferden

Stausee Ferden ("Ferden reservoir") is a reservoir on the Lonza river at Ferden, Valais, Switzerland. Its surface area is 10.6 ha (26 acres).

The lake has the shortest lake retention time in the world.