Lac Dun is a Lake located in Lac-Pikauba; Charlevoix, Quebec and has an elevation of 604 meters.

• Latitude: 47° 55' 43'' North   (decimal: 47.9286111)
• Longitude: 70° 57' 8'' West   (decimal: -70.9522221)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 604 meters
• Location: Lac-Pikauba; Charlevoix
• Atlas of Canada Locator Map: Lac Dun
• GPS Coordinate Locator Map: Lac Dun Lat/Long