Grand lac à Jos is a Lake located in Mont-Élie; Charlevoix-Est, Quebec.

• Latitude: 47° 49' 0'' North   (decimal: 47.8166885)
• Longitude: 70° 13' 37'' West   (decimal: -70.2270135)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Mont-Élie; Charlevoix-Est
• Atlas of Canada Locator Map: Grand lac à Jos
• GPS Coordinate Locator Map: Grand lac à Jos Lat/Long