The Robert-Bourassa Reservoir (in French: Réservoir Robert-Bourassa) is a man-made lake in northern Quebec, Canada. It was created in the mid-1970s as part of the James Bay Project and provides the needed water for the Robert-Bourassa and La Grande-2-A generating stations. It has a maximum surface area of 2,835 square kilometres (1,095 sq mi), and a surface elevation between 168 metres (551 ft) and 175 metres (574 ft).