Le Grand Cochon is a Island located in Saint-Antoine-de-l'Isle-aux-Grues; Montmagny, Quebec and has an elevation of 1 meters.

• Latitude: 47° 7' 15'' North   (decimal: 47.1208558)
• Longitude: 70° 30' 52'' West   (decimal: -70.5145219)
• Topography Feature Category: Island
• Geographical Feature: Rocher
• Canadian Province/Territory: Quebec
• Elevation: 1 meters
• Location: Saint-Antoine-de-l'Isle-aux-Grues; Montmagny
• Atlas of Canada Locator Map: Le Grand Cochon
• GPS Coordinate Locator Map: Le Grand Cochon Lat/Long