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The Grimselsee or Lake Grimsel is an artificial lake near the Grimsel Pass in the Canton of Bern, Switzerland. With a volume of 95 mio m³ (20.9 billion imperial gallons, 20.1 billion US gallons), it is larger than other hydroelectric reservoirs in the Aare headwaters region: Oberaarsee, Räterichsbodensee and Gelmersee. The dam was completed in 1932 and is operated by Kraftwerke Oberhasli AG (KWO). It is located in the municipality of Guttannen.
| Grimselsee Lake Grimsel | |
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Grimselsee
Grimselsee
Grimselsee | |
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| Location | Guttannen, Canton of Bern |
| Coordinates | 46°34′10.52″N 8°19′38.66″E / 46.5695889°N 8.3274056°E |
| Type | artificial lake, hydroelectric reservoir |
| Primary inflows | Oberaarbach [de], Treibtenbach |
| Primary outflows | Aare |
| Catchment area | 74.4 km2 (28.7 sq mi) |
| Basin countries | Switzerland |
| Surface area | 2.63 km2 (1.02 sq mi) |
| Water volume | 95 million cubic metres (77,000 acre⋅ft) |
| Surface elevation | 1,908 m (6,260 ft) |
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- Media related to Grimselsee at Wikimedia Commons
- KWO: Lake Grimsel
