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

• Latitude: 48° 42' 36'' North   (decimal: 48.71)
• Longitude: 70° 29' 42'' West   (decimal: -70.495)
• 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 Deux Montagnes
• GPS Coordinate Locator Map: Lac des Deux Montagnes Lat/Long