Grand lac Jourdain is a Lake located in Rivière-Mistassini; Maria-Chapdelaine, Quebec and has an elevation of 448 meters.

• Latitude: 49° 49' 34'' North   (decimal: 49.8261111)
• Longitude: 72° 10' 17'' West   (decimal: -72.1713889)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 448 meters
• Location: Rivière-Mistassini; Maria-Chapdelaine
• Atlas of Canada Locator Map: Grand lac Jourdain
• GPS Coordinate Locator Map: Grand lac Jourdain Lat/Long