Opaoca River
| Opaoca | |
|---|---|
Watershed of Nottaway River | |
| Location | |
| Country | Canada |
| Province | Quebec |
| Region | Eeyou Istchee Baie-James (municipality) |
| Physical characteristics | |
| Source | Anorthosite Lake |
| • location | Eeyou Istchee Baie-James (municipality), Nord-du-Québec, Quebec |
| • coordinates | 49°40′53″N 77°09′58″W / 49.68139°N 77.16611°W |
| • elevation | 336 m (1,102 ft) |
| Mouth | Olga Lake (Waswanipi River), Waswanipi River |
• location | Eeyou Istchee Baie-James (municipality), Nord-du-Québec, Quebec |
• coordinates | 49°40′53″N 77°09′58″W / 49.68139°N 77.16611°W |
• elevation | 256 m (840 ft) |
| Length | 66.6 km (41.4 mi) |
The Opaoca River is a tributary of Olga Lake (Waswanipi River), in Regional County Municipality (RCM) of Eeyou Istchee James Bay (municipality), in the administrative region of Nord-du-Québec, Canadian province of Quebec, in Canada.
The course of the river successively crosses the townships of Bourbaux, Berthiaume, Noyelles, Le Tardif, Comporte and Pouchot.
The hydrographic slope of the Opaoca River is served by various forest roads including the R1026 road (North-South direction). The northern route from Matagami passing at 19.4 kilometres (12.1 mi) to the northwest of the mouth of the Opaoca River. The surface of the river is usually frozen from early November to mid-May, however, safe ice circulation is generally from mid-November to mid-April.