Lac Duman is a Lake located in Lac-Pythonga; La Vallée-de-la-Gatineau, Quebec and has an elevation of 375 meters.

• Latitude: 47° 8' 34'' North   (decimal: 47.1427778)
• Longitude: 76° 48' 38'' West   (decimal: -76.8105556)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 375 meters
• Location: Lac-Pythonga; La Vallée-de-la-Gatineau
• Atlas of Canada Locator Map: Lac Duman
• GPS Coordinate Locator Map: Lac Duman Lat/Long