Lac Deacon is a Lake located in Lac-Vacher; Caniapiscau, Quebec and has an elevation of 591 meters.

• Latitude: 54° 58' 21'' North   (decimal: 54.9725)
• Longitude: 67° 9' 41'' West   (decimal: -67.1613889)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 591 meters
• Location: Lac-Vacher; Caniapiscau
• Atlas of Canada Locator Map: Lac Deacon
• GPS Coordinate Locator Map: Lac Deacon Lat/Long