Lac des Plantes-Mères is a Lake located in Rivière-aux-Outardes; Manicouagan, Quebec.

• Latitude: 50° 40' 32'' North   (decimal: 50.6756388)
• Longitude: 69° 15' 8'' West   (decimal: -69.2522851)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Rivière-aux-Outardes; Manicouagan
• Atlas of Canada Locator Map: Lac des Plantes-Mères
• GPS Coordinate Locator Map: Lac des Plantes-Mères Lat/Long