Lac de la Duchesse is a Lake located in Baie-de-la-Bouteille; Matawinie, Quebec and has an elevation of 479 meters.

• Latitude: 46° 36' 34'' North   (decimal: 46.6094810)
• Longitude: 73° 38' 16'' West   (decimal: -73.6376393)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 479 meters
• Location: Baie-de-la-Bouteille; Matawinie
• Atlas of Canada Locator Map: Lac de la Duchesse
• GPS Coordinate Locator Map: Lac de la Duchesse Lat/Long