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

• Latitude: 48° 35' 44'' North   (decimal: 48.5955556)
• Longitude: 70° 28' 50'' West   (decimal: -70.4805556)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Mont-Valin; Le Fjord-du-Saguenay
• Atlas of Canada Locator Map: Lac Tout Seul
• GPS Coordinate Locator Map: Lac Tout Seul Lat/Long