| Lake Poncheville | |
|---|---|
 Watershed of Nottaway River | |
  Lake Poncheville | |
| Location | Eeyou Istchee James Bay Regional Government, Quebec |
| Coordinates | 50°09′20″N 76°57′33″W / 50.15556°N 76.95917°W |
| Type | Natural |
| Basin countries | Canada |
| Max. length | 37.1 kilometres (23.1 mi) |
| Max. width | 7.7 kilometres (4.8 mi) |
| Surface elevation | 269 metres (883 ft) |
Lake Poncheville is a freshwater body in of Eeyou Istchee Baie-James (municipality), in the administrative region of Nord-du-Québec, in the province of Quebec, in Canada. The southern part of the lake is part of the townships of Des Combes and Grandfontaine.
Forestry is the main economic activity of the sector. Recreational tourism activities come second, thanks to a navigable body of water of a length of 60.9 kilometres (37.8 mi), connecting the lakes Opataouaga, "Lac de la Hauteur des Terres" (English: Lac Lake of the Height of the Lands) and Poncheville Lake. In addition, the Quénonisca Lake (located to the north) of a length of 52.1 kilometres (32.4 mi) offers another navigable body of water that connects to the Broadback River.
The Poncheville Lake watershed is accessible via a forest road (east-west direction) from the west connecting the road to the north.
The surface of Poncheville Lake is usually frozen from early November to mid-May, however, safe ice circulation is generally from mid-November to mid-April.