Grand-Détour is a Unincorporated area located in Matane; Matane, Quebec and has an elevation of 35 meters.

• Latitude: 48° 47' 39'' North   (decimal: 48.7942095)
• Longitude: 67° 32' 13'' West   (decimal: -67.5369412)
• Topography Feature Category: Unincorporated area
• Geographical Feature: Hameau
• Canadian Province/Territory: Quebec
• Elevation: 35 meters
• Location: Matane; Matane
• Atlas of Canada Locator Map: Grand-Détour
• GPS Coordinate Locator Map: Grand-Détour Lat/Long