Waswanipi River
| Waswanipi | |
|---|---|
| Watershed of Nottaway River | |
| Location | |
| Country | Canada | 
| Province | Quebec | 
| Region | Eeyou Istchee Baie-James (municipality) | 
| Physical characteristics | |
| Source | Confluence of Chibougamau River and Opawica River | 
| • location | Eeyou Istchee Baie-James (municipality), Nord-du-Québec, Quebec | 
| • coordinates | 49°41′07″N 75°57′49″W / 49.68528°N 75.96361°W | 
| • elevation | 276 m (906 ft) | 
| Mouth | Matagami Lake | 
|  • location | Eeyou Istchee Baie-James (municipality), Nord-du-Québec, Quebec | 
|  • coordinates | 49°53′28″N 77°15′21″W / 49.89111°N 77.25583°W | 
|  • elevation | 256 m (840 ft) | 
| Length | 139.4 km (86.6 mi) | 
| Basin size | 31,900 km2 (12,300 sq mi) | 
| Basin features | |
| Tributaries | |
| • left | (from the mouth) Opaoca River (via Olga Lake (Waswanipi River)), Little Waswanipi River, Iserhoff River (via Lake Waswanipi), O'Sullivan River (via Lake Waswanipi), Bachelor River, Opawica River | 
| • right | (from the mouth) Chensagi River (via Maicasagi Lake), Maicasagi River (via Maicasagi Lake), Chibougamau River | 
The Waswanipi River is a tributary of Matagami Lake. The Waswanipi River flows in the Municipality of Eeyou Istchee Baie-James in the administrative region of Nord-du-Québec, in Quebec, Canada.