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

• Latitude: 48° 50' 45'' North   (decimal: 48.8458733)
• Longitude: 70° 48' 18'' West   (decimal: -70.8050747)
• 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 Marmiton
• GPS Coordinate Locator Map: Lac du Marmiton Lat/Long