Décharge du Lac des Joncs is a River located in Saint-Marcellin; Rimouski-Neigette, Quebec and has an elevation of 315 meters.

• Latitude: 48° 20' 47'' North   (decimal: 48.3464307)
• Longitude: 68° 11' 41'' West   (decimal: -68.1947384)
• Topography Feature Category: River
• Geographical Feature: Ruisseau
• Canadian Province/Territory: Quebec
• Elevation: 315 meters
• Location: Saint-Marcellin; Rimouski-Neigette
• Atlas of Canada Locator Map: Décharge du Lac des Joncs
• GPS Coordinate Locator Map: Décharge du Lac des Joncs Lat/Long