Lac Langlois is a Lake located in Rivière-aux-Outardes; Manicouagan, Quebec and has an elevation of 571 meters.

• Latitude: 50° 53' 31'' North   (decimal: 50.8919663)
• Longitude: 68° 49' 51'' West   (decimal: -68.8308523)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 571 meters
• Location: Rivière-aux-Outardes; Manicouagan
• Atlas of Canada Locator Map: Lac Langlois
• GPS Coordinate Locator Map: Lac Langlois Lat/Long