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

• Latitude: 49° 5' 45'' North   (decimal: 49.0958333)
• Longitude: 70° 5' 28'' West   (decimal: -70.0911111)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Mont-Valin; Le Fjord-du-Saguenay
• Atlas of Canada Locator Map: Lac du Corso
• GPS Coordinate Locator Map: Lac du Corso Lat/Long