Grand lac Saint François
| Lac Saint-François | |
|---|---|
| Location | Les Appalaches Regional County Municipality / Le Granit Regional County Municipality, Quebec |
| Coordinates | 45°53′55″N 71°09′28″W / 45.89861°N 71.15778°W |
| Primary outflows | Saint-François River |
| Basin countries | Canada |
| Surface area | 51 km2 (20 sq mi) |
The Grand lac Saint-François (French pronunciation: [ɡʁɑ̃ lak sɛ̃ fʁɑ̃swa]) is a freshwater body covering 51-square-kilometre (20 sq mi), in the administrative region of Chaudière-Appalaches, in southeastern Quebec, in Canada. This water body is located in two regional county municipality:
- Le Granit Regional County Municipality (MRC): in the municipalities of Lambton and Saint-Romain;
- Les Appalaches Regional County Municipality: in the municipalities of Sainte-Praxède, Saint-Joseph-de-Coleraine and Adstock.
This lake is located southeast of the city of Thetford Mines. It is the source of the Saint-François River.
Much of the lake is surrounded by the Frontenac National Park. Located in a forest environment, this lake is one of the main attractions of Parc national de Frontenac. The resort is very dense on the north shore of Grand Lac Saint-François. The surface of this body of water is generally frozen from mid-November to the end of April; however, the period of safe traffic on the ice is usually from mid-December to the end of March.