Le Grand Marais is a Low vegetation located in Mansfield-et-Pontefract; Pontiac, Quebec and has an elevation of 109 meters.

• Latitude: 45° 50' 2'' North   (decimal: 45.8338889)
• Longitude: 76° 42' 41'' West   (decimal: -76.7113889)
• Topography Feature Category: Low vegetation
• Geographical Feature: Marais
• Canadian Province/Territory: Quebec
• Elevation: 109 meters
• Location: Mansfield-et-Pontefract; Pontiac
• Atlas of Canada Locator Map: Le Grand Marais
• GPS Coordinate Locator Map: Le Grand Marais Lat/Long