Le Gros Lac is a Lake located in Mont-Alexandre; Le Rocher-Percé, Quebec and has an elevation of 359 meters.

• Latitude: 48° 40' 16'' North   (decimal: 48.6711111)
• Longitude: 64° 28' 38'' West   (decimal: -64.4772222)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 359 meters
• Location: Mont-Alexandre; Le Rocher-Percé
• Atlas of Canada Locator Map: Le Gros Lac
• GPS Coordinate Locator Map: Le Gros Lac Lat/Long