Mary Jane Lake is a Lake located in Muskoka, Ontario and has an elevation of 244 meters.

• Latitude: 45° 11' 8'' North   (decimal: 45.1855555)
• Longitude: 79° 40' 5'' West   (decimal: -79.6680555)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: Ontario
• Elevation: 244 meters
• Location: Muskoka
• Atlas of Canada Locator Map: Mary Jane Lake
• GPS Coordinate Locator Map: Mary Jane Lake Lat/Long