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Lake Sarnen

Lake Sarnen
Sarnersee
Sarnersee.jpg
Location Obwalden
Coordinates 46°51′45″N 8°12′31″E / 46.86250°N 8.20861°E / 46.86250; 8.20861Coordinates: 46°51′45″N 8°12′31″E / 46.86250°N 8.20861°E / 46.86250; 8.20861
Primary inflows Aa, Grosse Melchaa, Dreiwässerkanal
Primary outflows Sarner Aa
Basin countries Switzerland
Max. length 5.7 km (3.5 mi)
Max. width 1.6 km (0.99 mi)
Surface area 7.5 km2 (2.9 sq mi)
Average depth 31 m (102 ft)
Max. depth 51 m (167 ft)
Water volume 239 million cubic metres (194,000 acre·ft)
Residence time 0.8 years
Surface elevation 469 m (1,539 ft)
Settlements Sarnen, Sachseln

Lake Sarnen (German: Sarnersee) is a lake in the Swiss canton of Obwalden. The lake is on the Sarner Aa, which flows out of the Lake Lungern, through the Lake Sarnen, and into Lake Lucerne. The municipalities of Sarnen and Sachseln are located on the shores of the lake, and the Brünig railway line follows the eastern shore.

The lake's area is about 7.5 km2 (2.9 sq mi) and its maximum depth is 51 m. It is about 5.7 km (3.5 mi) long and, at its widest, 1.6 km (0.99 mi) wide.

The lake is the subject of a watercolour painting by JMW Turner, entitled The Sarner See, Evening, and dating from c.1842.



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