Lac Jans is a Lake located in Rivière-Mistassini; Maria-Chapdelaine, Quebec and has an elevation of 360 meters.

• Latitude: 49° 39' 42'' North   (decimal: 49.6616667)
• Longitude: 73° 27' 43'' West   (decimal: -73.4619444)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 360 meters
• Location: Rivière-Mistassini; Maria-Chapdelaine
• Atlas of Canada Locator Map: Lac Jans
• GPS Coordinate Locator Map: Lac Jans Lat/Long