Gelmersee

Gelmersee (or Lake Gelmer) is a reservoir in Bernese Oberland, Switzerland. The hydroelectric reservoir was completed in 1932, at about the same time as the Grimselsee reservoir, and both are operated by Kraftwerke Oberhasli. The reservoir's volume is 13 million cubic metres (460×10^⁶ cu ft) and its surface area 64.5 ha (159 acres).

LocationGrimsel, Bernese Oberland

Coordinates46°36′58″N 8°19′56″E

Typereservoir

Catchment area16.0 km² (6.2 sq mi)

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Gelmersee
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Location	Grimsel, Bernese Oberland
Coordinates	46°36′58″N 8°19′56″E
Type	reservoir
Catchment area	16.0 km2 (6.2 sq mi)
Basin countries	Switzerland
Surface area	0.645 km2 (0.249 sq mi)
Max. depth	48 m (157 ft)
Water volume	13 million cubic metres (11,000 acre⋅ft)
Surface elevation	1,850 m (6,070 ft)
Location
Interactive map of Gelmersee

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The reservoir may be reached by the Gelmerbahn from Handegg, Guttannen at 1,412 m (4,633 ft). The funicular's track with a length of 1,028 m (3,373 ft) has a maximum inclination of 106%.