Décharge du Lac Long is a River located in Saint-Thomas-Didyme; Maria-Chapdelaine, Quebec.

• Latitude: 48° 56' 31'' North   (decimal: 48.9419444)
• Longitude: 72° 37' 11'' West   (decimal: -72.6197222)
• Topography Feature Category: River
• Geographical Feature: Ruisseau
• Canadian Province/Territory: Quebec
• Location: Saint-Thomas-Didyme; Maria-Chapdelaine
• Atlas of Canada Locator Map: Décharge du Lac Long
• GPS Coordinate Locator Map: Décharge du Lac Long Lat/Long