Johnston Lake is a Lake located in Algoma, Ontario and has an elevation of 306 meters.

• Latitude: 49° 35' 13'' North   (decimal: 49.5869444)
• Longitude: 84° 32' 31'' West   (decimal: -84.5419444)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: Ontario
• Elevation: 306 meters
• Location: Algoma
• Atlas of Canada Locator Map: Johnston Lake
• GPS Coordinate Locator Map: Johnston Lake Lat/Long