La Grande Coupe is a Valley located in Percé; Le Rocher-Percé, Quebec.

• Latitude: 48° 32' 3'' North   (decimal: 48.5341666)
• Longitude: 64° 14' 13'' West   (decimal: -64.2369444)
• Topography Feature Category: Valley
• Geographical Feature: Ravin
• Canadian Province/Territory: Quebec
• Location: Percé; Le Rocher-Percé
• Atlas of Canada Locator Map: La Grande Coupe
• GPS Coordinate Locator Map: La Grande Coupe Lat/Long