Lac Big-Al is a Lake located in La Tuque; Le Haut-Saint-Maurice, Quebec.

• Latitude: 48° 7' 25'' North   (decimal: 48.1236760)
• Longitude: 74° 17' 1'' West   (decimal: -74.2837381)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: La Tuque; Le Haut-Saint-Maurice
• Atlas of Canada Locator Map: Lac Big-Al
• GPS Coordinate Locator Map: Lac Big-Al Lat/Long