Rivière du Grand Portage is a River located in Lac-Ashuapmushuan; Le Domaine-du-Roy, Quebec and has an elevation of 606 meters.

• Latitude: 48° 59' 8'' North   (decimal: 48.9856033)
• Longitude: 73° 22' 33'' West   (decimal: -73.3759253)
• Topography Feature Category: River
• Geographical Feature: Rivière
• Canadian Province/Territory: Quebec
• Elevation: 606 meters
• Location: Lac-Ashuapmushuan; Le Domaine-du-Roy
• Atlas of Canada Locator Map: Rivière du Grand Portage
• GPS Coordinate Locator Map: Rivière du Grand Portage Lat/Long