Lac Cul-de-Sac is a Lake located in Notre-Dame-des-Monts; Charlevoix-Est, Quebec.

• Latitude: 47° 40' 44'' North   (decimal: 47.6788889)
• Longitude: 70° 23' 1'' West   (decimal: -70.3836111)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Notre-Dame-des-Monts; Charlevoix-Est
• GPS Coordinate Locator Map: Lac Cul-de-Sac Lat/Long