Lac de Longemer is a lake near Xonrupt-Longemer, in Vosges, France. At an elevation of 736 m, its surface area is 0.76 km2 (0 sq mi).

Lac de Longemer
Lac de Longemer is located in France
Lac de Longemer
Lac de Longemer
LocationVosges
Coordinates48°04′13″N 6°57′02″E / 48.070278°N 6.950556°E / 48.070278; 6.950556
Typeglacial
Primary outflowsVologne
Basin countriesFrance
Max. length2,000 m (6,600 ft)
Max. width500 m (1,600 ft)
Surface area0.76 km2 (0.29 sq mi)
Max. depth34 m (112 ft)
Surface elevation736 m (2,415 ft)