Lac Duke is a Lake located in La Tuque; Le Haut-Saint-Maurice, Quebec and has an elevation of 450 meters.

• Latitude: 48° 3' 57'' North   (decimal: 48.0658333)
• Longitude: 75° 30' 14'' West   (decimal: -75.5038889)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 450 meters
• Location: La Tuque; Le Haut-Saint-Maurice
• Atlas of Canada Locator Map: Lac Duke
• GPS Coordinate Locator Map: Lac Duke Lat/Long