Petit lac de l'Ouest is a Lake located in Rivière-au-Tonnerre; Minganie, Quebec and has an elevation of 116 meters.

• Latitude: 50° 19' 28'' North   (decimal: 50.3244444)
• Longitude: 65° 11' 36'' West   (decimal: -65.1933333)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 116 meters
• Location: Rivière-au-Tonnerre; Minganie
• Atlas of Canada Locator Map: Petit lac de l'Ouest
• GPS Coordinate Locator Map: Petit lac de l'Ouest Lat/Long