Lake Lungern

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Lake Lungern
Lac de Lungern
Lungerersee from Brünigpass.jpg
Karte Lungerersee.png
Coordinates46°48′9″N 8°9′48″E / 46.80250°N 8.16333°E / 46.80250; 8.16333Coordinates: 46°48′9″N 8°9′48″E / 46.80250°N 8.16333°E / 46.80250; 8.16333
Primary inflowsLauibach, Eibach
Primary outflowsSarner Aa
Basin countriesSwitzerland
Max. length2 km (1.2 mi)
Max. width200–800 m (660–2,620 ft)
Surface area2.01 km2 (0.78 sq mi)
Max. depth68 m (223 ft)
Surface elevation688 m (2,257 ft)

Lake Lungern (German: Lungerersee, also spelled Lungernsee or Lungerensee) is a natural lake in Obwalden, Switzerland which is named after the town Lungern on its shore. The lake is drained by the Sarner Aa river, which flows through the Sarnersee and into Lake Lucerne.[1]

The lake was originally much larger, and covered a large part of the valley it is situated in. Starting in 1836, its level was lowered by 36 metres through an artificial drainage tunnel of 380 m length.[2] It is used as a reservoir.[citation needed]


  1. ^ (Map). Swiss Confederation. Retrieved 2013-01-05.
  2. ^ Brockhaus' Konversations-Lexikon. 14th ed., Leipzig, Berlin and Vienna 1894; Vol. 11, p. 385

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