Lac Tandem is a Lake located in Lac-Jacques-Cartier; La Côte-de-Beaupré, Quebec and has an elevation of 796 meters.

• Latitude: 47° 39' 58'' North   (decimal: 47.6661111)
• Longitude: 71° 31' 36'' West   (decimal: -71.5266667)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 796 meters
• Location: Lac-Jacques-Cartier; La Côte-de-Beaupré
• Atlas of Canada Locator Map: Lac Tandem
• GPS Coordinate Locator Map: Lac Tandem Lat/Long