Opinaca Reservoir

Opinaca Reservoir is a lake in the northwest of the province of Quebec in Canada. It is located 140 km east of James Bay, south of the Robert-Bourassa Reservoir and south of Lac Sakami. It is connected by a 41 km narrows to the Eastmain Reservoir located east.

Opinaca Reservoir
Opinaca Reservoir Location in Quebec
Location	Nord-du-Québec, Quebec
Coordinates	52°38′58″N 76°19′54″W
Primary inflows	Opinaca River
Primary outflows	Opinaca River
Catchment area	30,000 km2 (12,000 sq mi)
Basin countries	Canada
Surface area	1,040 km2 (400 sq mi)
Average depth	8.2 m (27 ft)
Max. depth	51 m (167 ft)
Water volume	8.5 km3 (6,900,000 acre⋅ft)
Residence time	0.34 years
Shore length1	2,200 km (1,400 mi)
Surface elevation	216 m (709 ft)
Frozen	December to May
References	[1][2][3][4]
1 Shore length is not a well-defined measure.

Opinaca Reservoir is a reservoir of the James Bay Project with an elevation of 216 m (709 ft) and an area of 1,040 km² (400 sq mi).[4]