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

• Latitude: 48° 47' 46'' North   (decimal: 48.7961111)
• Longitude: 70° 55' 17'' West   (decimal: -70.9213889)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Mont-Valin; Le Fjord-du-Saguenay
• Atlas of Canada Locator Map: Lac Dunh
• GPS Coordinate Locator Map: Lac Dunh Lat/Long