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
Grimsel Oberaarsee.jpg
Oberaarsee is located in Canton of Bern
Oberaarsee
Oberaarsee
LocationGuttannen, Canton of Berne
Coordinates46°33′N 8°16′E / 46.550°N 8.267°E / 46.550; 8.267Coordinates: 46°33′N 8°16′E / 46.550°N 8.267°E / 46.550; 8.267
Typereservoir
Catchment area19.4 km2 (7.5 sq mi)
Basin countriesSwitzerland
Max. length2.8 km (1.7 mi)
Surface area1.47 km2 (0.57 sq mi)
Max. depth90 m (300 ft)
Surface elevation2,303 m (7,556 ft)

The Oberaar glacier is located west of the lake.

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