Lac Duclos is a Lake located in Gracefield; La Vallée-de-la-Gatineau, Quebec.

• Latitude: 46° 7' 44'' North   (decimal: 46.1288889)
• Longitude: 76° 7' 46'' West   (decimal: -76.1294444)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Gracefield; La Vallée-de-la-Gatineau
• GPS Coordinate Locator Map: Lac Duclos Lat/Long