Oberaarsee

Oberaarsee is a hydroelectric reservoir in the Grimsel area, part of the municipality of Guttannen, Switzerland. Its surface area is 1.47 km² (0.57 sq mi). The Oberaar dam was completed in 1953, and is operated by Kraftwerke Oberhasli. It is drained by the Oberaarbach, which flows into the Grimselsee.

Oberaarsee
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Location	Guttannen, Canton of Bern
Coordinates	46°33′N 8°16′E
Type	reservoir
Catchment area	19.4 km2 (7.5 sq mi)
Basin countries	Switzerland
Max. length	2.8 km (1.7 mi)
Surface area	1.47 km2 (0.57 sq mi)
Max. depth	90 m (300 ft)
Surface elevation	2,303 m (7,556 ft)

The Oberaar glacier is located west of the lake.

See also

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