Grand lac de Laffrey

Grand Lac de Laffrey
Location	Isère
Coordinates	45°0′40″N 5°46′40″E / 45.01111°N 5.77778°E / 45.01111; 5.77778Coordinates: 45°0′40″N 5°46′40″E / 45.01111°N 5.77778°E / 45.01111; 5.77778
Primary outflows	Laffrey
Basin countries	France
Max. length	3 km
Max. width	0.5 km
Surface area	120 ha
Average depth	39 m
Surface elevation	911 m

The Grand lac de Laffrey (Great Laffrey lake) is one of the Laffrey lakes, located in Matheysine at 23 km south of Grenoble, in the Isère département.