La Grand-Mare is a Unincorporated area located in Percé; Le Rocher-Percé, Quebec and has an elevation of 3 meters.

• Latitude: 48° 34' 46'' North   (decimal: 48.5795047)
• Longitude: 64° 18' 23'' West   (decimal: -64.3062548)
• Topography Feature Category: Unincorporated area
• Geographical Feature: Hameau
• Canadian Province/Territory: Quebec
• Elevation: 3 meters
• Location: Percé; Le Rocher-Percé
• Atlas of Canada Locator Map: La Grand-Mare
• GPS Coordinate Locator Map: La Grand-Mare Lat/Long