Lac Gros-Bec is a Lake located in Lac-Oscar; Antoine-Labelle, Quebec and has an elevation of 475 meters.

• Latitude: 46° 58' 57'' North   (decimal: 46.9825)
• Longitude: 74° 55' 36'' West   (decimal: -74.9266667)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 475 meters
• Location: Lac-Oscar; Antoine-Labelle
• Atlas of Canada Locator Map: Lac Gros-Bec
• GPS Coordinate Locator Map: Lac Gros-Bec Lat/Long