Lac Gauthier is a Lake located in Franquelin; Manicouagan, Quebec.

• Latitude: 49° 21' 52'' North   (decimal: 49.3644908)
• Longitude: 67° 41' 51'' West   (decimal: -67.6975066)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Franquelin; Manicouagan
• GPS Coordinate Locator Map: Lac Gauthier Lat/Long