Lac Berthiaume is a Lake located in Lac-au-Brochet; La Haute-Côte-Nord, Quebec and has an elevation of 482 meters.

• Latitude: 48° 52' 18'' North   (decimal: 48.8716667)
• Longitude: 69° 43' 13'' West   (decimal: -69.7202778)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 482 meters
• Location: Lac-au-Brochet; La Haute-Côte-Nord
• Atlas of Canada Locator Map: Lac Berthiaume
• GPS Coordinate Locator Map: Lac Berthiaume Lat/Long