Lac du Masque is a Lake located in La Tuque; Le Haut-Saint-Maurice, Quebec.

• Latitude: 47° 11' 43'' North   (decimal: 47.1953162)
• Longitude: 73° 11' 6'' West   (decimal: -73.1851237)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: La Tuque; Le Haut-Saint-Maurice
• Atlas of Canada Locator Map: Lac du Masque
• GPS Coordinate Locator Map: Lac du Masque Lat/Long