Cours d'eau Gagnon is a River located in L'Ascension-de-Notre-Seigneur; Lac-Saint-Jean-Est, Quebec.

• Latitude: 48° 40' 54'' North   (decimal: 48.6816667)
• Longitude: 71° 41' 28'' West   (decimal: -71.6911111)
• Topography Feature Category: River
• Geographical Feature: Cours d'eau agricole
• Canadian Province/Territory: Quebec
• Location: L'Ascension-de-Notre-Seigneur; Lac-Saint-Jean-Est
• Atlas of Canada Locator Map: Cours d'eau Gagnon
• GPS Coordinate Locator Map: Cours d'eau Gagnon Lat/Long