Lac Dorsal is a Lake located in Lac-Marguerite; Antoine-Labelle, Quebec.

• Latitude: 47° 9' 29'' North   (decimal: 47.1580556)
• Longitude: 75° 58' 34'' West   (decimal: -75.9761110)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Lac-Marguerite; Antoine-Labelle
• Atlas of Canada Locator Map: Lac Dorsal
• GPS Coordinate Locator Map: Lac Dorsal Lat/Long