Grand lac la Vache is a Lake located in La Tuque; Le Haut-Saint-Maurice, Quebec and has an elevation of 474 meters.

• Latitude: 47° 50' 20'' North   (decimal: 47.8388889)
• Longitude: 73° 36' 54'' West   (decimal: -73.615)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 474 meters
• Location: La Tuque; Le Haut-Saint-Maurice
• Atlas of Canada Locator Map: Grand lac la Vache
• GPS Coordinate Locator Map: Grand lac la Vache Lat/Long