Lac Guillaume is a Lake located in Caniapiscau; Caniapiscau, Quebec and has an elevation of 600 meters.

• Latitude: 54° 55' 21'' North   (decimal: 54.9225)
• Longitude: 67° 24' 45'' West   (decimal: -67.4125)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 600 meters
• Location: Caniapiscau; Caniapiscau
• Atlas of Canada Locator Map: Lac Guillaume
• GPS Coordinate Locator Map: Lac Guillaume Lat/Long