Lac Bianais is a Lake located in Saint-Guillaume-Nord; Matawinie, Quebec and has an elevation of 384 meters.

• Latitude: 46° 27' 30'' North   (decimal: 46.4583733)
• Longitude: 73° 59' 52'' West   (decimal: -73.9976522)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 384 meters
• Location: Saint-Guillaume-Nord; Matawinie
• Atlas of Canada Locator Map: Lac Bianais
• GPS Coordinate Locator Map: Lac Bianais Lat/Long