Cours d'eau Létourneau is a River located in Saint-Pierre-de-la-Rivière-du-Sud; Montmagny, Quebec.

• Latitude: 46° 54' 31'' North   (decimal: 46.9086325)
• Longitude: 70° 37' 5'' West   (decimal: -70.6181343)
• Topography Feature Category: River
• Geographical Feature: Cours d'eau agricole
• Canadian Province/Territory: Quebec
• Location: Saint-Pierre-de-la-Rivière-du-Sud; Montmagny
• Atlas of Canada Locator Map: Cours d'eau Létourneau
• GPS Coordinate Locator Map: Cours d'eau Létourneau Lat/Long