Petite décharge des Trente is a River located in Saint-Mathias-sur-Richelieu; Rouville, Quebec and has an elevation of 19 meters.

• Latitude: 45° 28' 40'' North   (decimal: 45.4778171)
• Longitude: 73° 14' 5'' West   (decimal: -73.2348544)
• Topography Feature Category: River
• Geographical Feature: Ruisseau
• Canadian Province/Territory: Quebec
• Elevation: 19 meters
• Location: Saint-Mathias-sur-Richelieu; Rouville
• Atlas of Canada Locator Map: Petite décharge des Trente
• GPS Coordinate Locator Map: Petite décharge des Trente Lat/Long