Ruisseau à Castonguay is a River located in Saint-Hubert-de-Rivière-du-Loup; Rivière-du-Loup, Quebec and has an elevation of 279 meters.

• Latitude: 47° 40' 19'' North   (decimal: 47.6719649)
• Longitude: 69° 18' 2'' West   (decimal: -69.3005936)
• Topography Feature Category: River
• Geographical Feature: Ruisseau
• Canadian Province/Territory: Quebec
• Elevation: 279 meters
• Location: Saint-Hubert-de-Rivière-du-Loup; Rivière-du-Loup
• Atlas of Canada Locator Map: Ruisseau à Castonguay
• GPS Coordinate Locator Map: Ruisseau à Castonguay Lat/Long