Lac Roussi is a Lake located in Franquelin; Manicouagan, Quebec and has an elevation of 176 meters.

• Latitude: 49° 22' 44'' North   (decimal: 49.3789354)
• Longitude: 67° 58' 12'' West   (decimal: -67.9700176)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 176 meters
• Location: Franquelin; Manicouagan
• Atlas of Canada Locator Map: Lac Roussi
• GPS Coordinate Locator Map: Lac Roussi Lat/Long