Lac J is a Lake located in Amherst; Les Laurentides, Quebec and has an elevation of 345 meters.

• Latitude: 46° 7' 32'' North   (decimal: 46.1256011)
• Longitude: 74° 46' 20'' West   (decimal: -74.7721278)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 345 meters
• Location: Amherst; Les Laurentides
• Atlas of Canada Locator Map: Lac J
• GPS Coordinate Locator Map: Lac J Lat/Long