Lac de la Grosse is a Lake located in Mont-Saint-Michel; Antoine-Labelle, Quebec and has an elevation of 345 meters.

• Latitude: 46° 49' 2'' North   (decimal: 46.8172222)
• Longitude: 75° 21' 20'' West   (decimal: -75.3555556)
• Topography Feature Category: Lake
• Geographical Feature: Étang
• Canadian Province/Territory: Quebec
• Elevation: 345 meters
• Location: Mont-Saint-Michel; Antoine-Labelle
• Atlas of Canada Locator Map: Lac de la Grosse
• GPS Coordinate Locator Map: Lac de la Grosse Lat/Long