Nøklevann

Nøklevann
Nøklevann, seen from north
Location	Oslo, Norway
Coordinates	59°52′31″N 10°52′37″E / 59.87528°N 10.87694°E / 59.87528; 10.87694Coordinates: 59°52′31″N 10°52′37″E / 59.87528°N 10.87694°E / 59.87528; 10.87694
Type	Natural lake
Primary outflows	Ljanselva
Basin countries	Norway
Surface area	0.63 km2 (0.24 sq mi)
Max. depth	34 m (112 ft)
Surface elevation	163 m (535 ft)

Nøklevann is a lake in Østmarka in Oslo, Norway. It has a surface area of 0.8 km², and is 163 meters above sea level. The lake drains through Ljanselva to Bunnefjorden. It is a former drinking water supply for Oslo.