Lac Quatrefages is a Lake located in Lac-Walker; Sept-Rivières, Quebec.

• Latitude: 50° 37' 37'' North   (decimal: 50.6269444)
• Longitude: 67° 2' 19'' West   (decimal: -67.0386111)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Lac-Walker; Sept-Rivières
• Atlas of Canada Locator Map: Lac Quatrefages
• GPS Coordinate Locator Map: Lac Quatrefages Lat/Long