Lac à Viateur is a Lake located in L'Isle-aux-Coudres; Charlevoix, Quebec.

• Latitude: 47° 24' 47'' North   (decimal: 47.4130780)
• Longitude: 70° 22' 44'' West   (decimal: -70.3789632)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: L'Isle-aux-Coudres; Charlevoix
• Atlas of Canada Locator Map: Lac à Viateur
• GPS Coordinate Locator Map: Lac à Viateur Lat/Long