Lac de Chalain

Lac de Chalain
Location	Fontenu, Jura department, Franche-Comté
Coordinates	46°40′13.74″N 5°47′37.19″E / 46.6704833°N 5.7936639°E / 46.6704833; 5.7936639Coordinates: 46°40′13.74″N 5°47′37.19″E / 46.6704833°N 5.7936639°E / 46.6704833; 5.7936639
Lake type	Lake
Primary outflows	Ain River
Catchment area	44 km²
Basin countries	France
Max. length	2700 m
Surface area	2.32 km²
Average depth	16.6 m
Max. depth	32 m
Surface elevation	486 m

Lac de Chalain is a lake in the Jura department of France. It is located on the territory of the commune of Fontenu.