Grand lac Nempêche is a Lake located in Mont-Valin; Le Fjord-du-Saguenay, Quebec and has an elevation of 681 meters.

• Latitude: 48° 42' 40'' North   (decimal: 48.7111111)
• Longitude: 70° 44' 57'' West   (decimal: -70.7491667)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 681 meters
• Location: Mont-Valin; Le Fjord-du-Saguenay
• Atlas of Canada Locator Map: Grand lac Nempêche
• GPS Coordinate Locator Map: Grand lac Nempêche Lat/Long