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

• Latitude: 49° 36' 29'' North   (decimal: 49.6080556)
• Longitude: 68° 46' 33'' West   (decimal: -68.7758333)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Rivière-aux-Outardes; Manicouagan
• Atlas of Canada Locator Map: Lac Serge
• GPS Coordinate Locator Map: Lac Serge Lat/Long