Poste La Grande-4 is a Hydraulic construction located in Baie-James; Jamésie, Quebec.

• Latitude: 53° 53' 10'' North   (decimal: 53.8862359)
• Longitude: 73° 28' 0'' West   (decimal: -73.4667992)
• Topography Feature Category: Hydraulic construction
• Geographical Feature: Poste de transport
• Canadian Province/Territory: Quebec
• Location: Baie-James; Jamésie
• Atlas of Canada Locator Map: Poste La Grande-4
• GPS Coordinate Locator Map: Poste La Grande-4 Lat/Long