Lac Blais is a Lake located in Lac-Nilgaut; Pontiac, Quebec and has an elevation of 224 meters.

• Latitude: 46° 13' 37'' North   (decimal: 46.2269444)
• Longitude: 76° 59' 15'' West   (decimal: -76.9874999)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 224 meters
• Location: Lac-Nilgaut; Pontiac
• Atlas of Canada Locator Map: Lac Blais
• GPS Coordinate Locator Map: Lac Blais Lat/Long