Baskatong Reservoir

The Baskatong Reservoir is a man-made lake in western Quebec, Canada. It was formed following the construction of the Mercier Dam in 1927 and has an area of 413 km2. Since 2007, a 55 MW generating station is in operation at the site of the dam, the reservoir also being used to control the flow of the Gatineau River for several hydroelectric generating stations downstream.

Its primary source is the Gatineau River. Other significant sources are:

Gens de Terre River

Source: Wikipedia