Lac de la Grande Coulée is a Lake located in Saint-Hilaire-de-Dorset; Beauce-Sartigan, Quebec.

• Latitude: 45° 53' 37'' North   (decimal: 45.8936476)
• Longitude: 70° 50' 24'' West   (decimal: -70.8400766)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Saint-Hilaire-de-Dorset; Beauce-Sartigan
• GPS Coordinate Locator Map: Lac de la Grande Coulée Lat/Long