Lac du Sud is a Lake located in Rivière-aux-Outardes; Manicouagan, Quebec.

• Latitude: 49° 34' 31'' North   (decimal: 49.5753259)
• Longitude: 67° 51' 54'' West   (decimal: -67.8650107)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Rivière-aux-Outardes; Manicouagan
• Atlas of Canada Locator Map: Lac du Sud
• GPS Coordinate Locator Map: Lac du Sud Lat/Long