Grand lac Jumeau is a Lake located in L'Anse-Saint-Jean; Le Fjord-du-Saguenay, Quebec and has an elevation of 555 meters.

• Latitude: 48° 5' 51'' North   (decimal: 48.0975267)
• Longitude: 70° 18' 12'' West   (decimal: -70.3034036)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 555 meters
• Location: L'Anse-Saint-Jean; Le Fjord-du-Saguenay
• Atlas of Canada Locator Map: Grand lac Jumeau
• GPS Coordinate Locator Map: Grand lac Jumeau Lat/Long