Grand lac Croche is a Lake located in Mont-Valin; Le Fjord-du-Saguenay, Quebec.

• Latitude: 49° 15' 34'' North   (decimal: 49.2594444)
• Longitude: 70° 52' 34'' West   (decimal: -70.8761111)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Mont-Valin; Le Fjord-du-Saguenay
• Atlas of Canada Locator Map: Grand lac Croche
• GPS Coordinate Locator Map: Grand lac Croche Lat/Long