Lac Bertaut is a Lake located in Rivière-Koksoak; Kativik, Quebec.

• Latitude: 59° 51' 20'' North   (decimal: 59.8555191)
• Longitude: 74° 7' 38'' West   (decimal: -74.1272728)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Rivière-Koksoak; Kativik
• Atlas of Canada Locator Map: Lac Bertaut
• GPS Coordinate Locator Map: Lac Bertaut Lat/Long