De Quen-Ouest is a Unincorporated area located in Alma; Lac-Saint-Jean-Est, Quebec.

• Latitude: 48° 34' 19'' North   (decimal: 48.5719444)
• Longitude: 71° 38' 19'' West   (decimal: -71.6386111)
• Topography Feature Category: Unincorporated area
• Geographical Feature: Quartier
• Canadian Province/Territory: Quebec
• Location: Alma; Lac-Saint-Jean-Est
• Atlas of Canada Locator Map: De Quen-Ouest
• GPS Coordinate Locator Map: De Quen-Ouest Lat/Long