Lacs Duo is a Lake located in Rivière-aux-Outardes; Manicouagan, Quebec.

• Latitude: 49° 51' 16'' North   (decimal: 49.8544444)
• Longitude: 69° 1' 51'' West   (decimal: -69.0308333)
• Topography Feature Category: Lake
• Geographical Feature: Lacs
• Canadian Province/Territory: Quebec
• Location: Rivière-aux-Outardes; Manicouagan
• Atlas of Canada Locator Map: Lacs Duo
• GPS Coordinate Locator Map: Lacs Duo Lat/Long