Coulée à Castonguay is a Valley located in Rivière-à-Claude; La Haute-Gaspésie, Quebec and has an elevation of 527 meters.

• Latitude: 49° 8' 34'' North   (decimal: 49.1428223)
• Longitude: 65° 57' 21'' West   (decimal: -65.9557759)
• Topography Feature Category: Valley
• Geographical Feature: Ravin
• Canadian Province/Territory: Quebec
• Elevation: 527 meters
• Location: Rivière-à-Claude; La Haute-Gaspésie
• Atlas of Canada Locator Map: Coulée à Castonguay
• GPS Coordinate Locator Map: Coulée à Castonguay Lat/Long