Lac à Alfred-Roy is a Lake located in Sainte-Marguerite; La Nouvelle-Beauce, Quebec and has an elevation of 343 meters.

• Latitude: 46° 30' 32'' North   (decimal: 46.5088888)
• Longitude: 70° 52' 50'' West   (decimal: -70.8805555)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 343 meters
• Location: Sainte-Marguerite; La Nouvelle-Beauce
• Atlas of Canada Locator Map: Lac à Alfred-Roy
• GPS Coordinate Locator Map: Lac à Alfred-Roy Lat/Long