Greifensee

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Greifensee
View from the surrounding hills
Coordinates	47°21′N 8°41′ECoordinates: 47°21′N 8°41′E
Primary sources	Aa, Aabach
Primary outflows	Glatt
Catchment area	160 km²
Basin countries	Switzerland
Max-length	6 km
Max-width	1.6 km
Surface area	8.45 km²
Average depth	18 m
Max-depth	32 m
Water volume	0.148 km³
Residence time (of lake water)	420 days
Surface elevation	435 m
Settlements	Maur, Nieder-Uster, Fällanden, Mönchaltorf and the town Greifensee

For the town, see Greifensee (town).

Greifensee is a small lake 20 km to the northeast of Lake Zurich and the city of Zurich. It lies approximately at co-ordinates 47°21′N 8°41′E. As the second largest lake in the Canton of Zurich (Lake Zurich being the largest), it is about 6 km long and 1.6 km at the widest point, for a maximum depth of 32 m. The Aabach is the main supplying river. A ship connects small towns lining the water, Maur, Nieder-Uster, Fällanden, Mönchaltorf and the town Greifensee. It is the scene of the Greifensee-Lauf, a semi-marathon around the lake held every year.