Lac Jenssen is a Lake located in Lac-Ashuapmushuan; Le Domaine-du-Roy, Quebec and has an elevation of 521 meters.

• Latitude: 48° 32' 58'' North   (decimal: 48.5494847)
• Longitude: 73° 7' 23'' West   (decimal: -73.1231578)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 521 meters
• Location: Lac-Ashuapmushuan; Le Domaine-du-Roy
• Atlas of Canada Locator Map: Lac Jenssen
• GPS Coordinate Locator Map: Lac Jenssen Lat/Long