Barrage La Grande-3 is a Hydraulic construction located in Baie-James; Jamésie, Quebec.

• Latitude: 53° 43' 46'' North   (decimal: 53.7295630)
• Longitude: 75° 58' 47'' West   (decimal: -75.9796899)
• Topography Feature Category: Hydraulic construction
• Geographical Feature: Barrage
• Canadian Province/Territory: Quebec
• Location: Baie-James; Jamésie
• Atlas of Canada Locator Map: Barrage La Grande-3
• GPS Coordinate Locator Map: Barrage La Grande-3 Lat/Long