Lac Mistassini is a Lake located in Rivière-aux-Outardes; Manicouagan, Quebec and has an elevation of 112 meters.

• Latitude: 49° 24' 22'' North   (decimal: 49.4061588)
• Longitude: 68° 4' 58'' West   (decimal: -68.0828002)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 112 meters
• Location: Rivière-aux-Outardes; Manicouagan
• Atlas of Canada Locator Map: Lac Mistassini
• GPS Coordinate Locator Map: Lac Mistassini Lat/Long