|Location||Grimsel Pass, Valais|
|Type||natural lake, reservoir|
|Surface area||18 ha (44 acres)|
|Max. depth||34 m (112 ft)|
|Water volume||2.5 million cubic metres (2,000 acre·ft)|
|Surface elevation||2,160 m (7,090 ft)|
In November 2006, the lake's entire trout population died, possibly due to algae.
The name Totensee (also: Lake Toten, literally "Lake of the Dead") is said to be derived from soldiers of Duke Berchtold V of Zähringen driven into the lake by the people of Valais.
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