Lac du Bac is a Lake located in Saint-Émile-de-Suffolk; Papineau, Quebec and has an elevation of 219 meters.

• Latitude: 45° 54' 52'' North   (decimal: 45.9144444)
• Longitude: 74° 55' 8'' West   (decimal: -74.9188889)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 219 meters
• Location: Saint-Émile-de-Suffolk; Papineau
• Atlas of Canada Locator Map: Lac du Bac
• GPS Coordinate Locator Map: Lac du Bac Lat/Long