Lac Blais is a Lake located in La Tuque; Le Haut-Saint-Maurice, Quebec and has an elevation of 465 meters.

• Latitude: 47° 43' 19'' North   (decimal: 47.7219444)
• Longitude: 71° 59' 35'' West   (decimal: -71.9930556)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 465 meters
• Location: La Tuque; Le Haut-Saint-Maurice
• Atlas of Canada Locator Map: Lac Blais
• GPS Coordinate Locator Map: Lac Blais Lat/Long