Lac des Prairies is a Lake located in Mont-Valin; Le Fjord-du-Saguenay, Quebec and has an elevation of 497 meters.

• Latitude: 50° 34' 57'' North   (decimal: 50.5825)
• Longitude: 70° 17' 32'' West   (decimal: -70.2922221)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 497 meters
• Location: Mont-Valin; Le Fjord-du-Saguenay
• Atlas of Canada Locator Map: Lac des Prairies
• GPS Coordinate Locator Map: Lac des Prairies Lat/Long