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

• Latitude: 48° 34' 45'' North   (decimal: 48.5791974)
• Longitude: 70° 11' 58'' West   (decimal: -70.1995081)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Mont-Valin; Le Fjord-du-Saguenay
• Atlas of Canada Locator Map: Lac Deux dans Un
• GPS Coordinate Locator Map: Lac Deux dans Un Lat/Long