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

• Latitude: 49° 5' 54'' North   (decimal: 49.0983333)
• Longitude: 70° 44' 39'' West   (decimal: -70.7441667)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Mont-Valin; Le Fjord-du-Saguenay
• Atlas of Canada Locator Map: Lac des Quatre Montagnes
• GPS Coordinate Locator Map: Lac des Quatre Montagnes Lat/Long