Branche Guy-Gagnon is a River located in Notre-Dame-du-Portage; Rivière-du-Loup, Quebec.

• Latitude: 47° 43' 3'' North   (decimal: 47.7175212)
• Longitude: 69° 37' 57'' West   (decimal: -69.6325494)
• Topography Feature Category: River
• Geographical Feature: Cours d'eau agricole
• Canadian Province/Territory: Quebec
• Location: Notre-Dame-du-Portage; Rivière-du-Loup
• Atlas of Canada Locator Map: Branche Guy-Gagnon
• GPS Coordinate Locator Map: Branche Guy-Gagnon Lat/Long