Lac Copeau is a Lake located in Rivière-aux-Outardes; Manicouagan, Quebec.

• Latitude: 49° 54' 34'' North   (decimal: 49.9094444)
• Longitude: 69° 22' 42'' West   (decimal: -69.3783333)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Rivière-aux-Outardes; Manicouagan
• Atlas of Canada Locator Map: Lac Copeau
• GPS Coordinate Locator Map: Lac Copeau Lat/Long