Le Grand Pisseux is a River located in La Martre; La Haute-Gaspésie, Quebec and has an elevation of 143 meters.

• Latitude: 49° 12' 42'' North   (decimal: 49.2117108)
• Longitude: 66° 6' 57'' West   (decimal: -66.1157809)
• Topography Feature Category: River
• Geographical Feature: Ruisseau
• Canadian Province/Territory: Quebec
• Elevation: 143 meters
• Location: La Martre; La Haute-Gaspésie
• Atlas of Canada Locator Map: Le Grand Pisseux
• GPS Coordinate Locator Map: Le Grand Pisseux Lat/Long