Lac de la Souche is a Lake located in Mont-Valin; Le Fjord-du-Saguenay, Quebec.

• Latitude: 49° 14' 35'' North   (decimal: 49.2430956)
• Longitude: 70° 49' 13'' West   (decimal: -70.8203470)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Mont-Valin; Le Fjord-du-Saguenay
• Atlas of Canada Locator Map: Lac de la Souche
• GPS Coordinate Locator Map: Lac de la Souche Lat/Long