Petit lac Duchastel is a Lake located in Lac-De La Bidière; Antoine-Labelle, Quebec.

• Latitude: 47° 28' 13'' North   (decimal: 47.4703434)
• Longitude: 75° 2' 36'' West   (decimal: -75.0432190)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Lac-De La Bidière; Antoine-Labelle
• Atlas of Canada Locator Map: Petit lac Duchastel
• GPS Coordinate Locator Map: Petit lac Duchastel Lat/Long