Le Grand Saguenay is a Lake located in Lac-Lapeyrère; Portneuf, Quebec.

• Latitude: 47° 11' 13'' North   (decimal: 47.1869733)
• Longitude: 72° 22' 46'' West   (decimal: -72.3795450)
• Topography Feature Category: Lake
• Geographical Feature: Partie de lac
• Canadian Province/Territory: Quebec
• Location: Lac-Lapeyrère; Portneuf
• Atlas of Canada Locator Map: Le Grand Saguenay
• GPS Coordinate Locator Map: Le Grand Saguenay Lat/Long