Grand lac Bostonnais is a Lake located in La Tuque; Le Haut-Saint-Maurice, Quebec and has an elevation of 391 meters.

• Latitude: 47° 54' 1'' North   (decimal: 47.9002777)
• Longitude: 72° 14' 3'' West   (decimal: -72.2341666)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 391 meters
• Location: La Tuque; Le Haut-Saint-Maurice
• Atlas of Canada Locator Map: Grand lac Bostonnais
• GPS Coordinate Locator Map: Grand lac Bostonnais Lat/Long