Johnston Channel is a Channel located in Lambton, Ontario and has an elevation of 178 meters.

• Latitude: 42° 31' 34'' North   (decimal: 42.5261111)
• Longitude: 82° 27' 10'' West   (decimal: -82.4527777)
• Topography Feature Category: Channel
• Geographical Feature: Channel
• Canadian Province/Territory: Ontario
• Elevation: 178 meters
• Location: Lambton
• Atlas of Canada Locator Map: Johnston Channel
• GPS Coordinate Locator Map: Johnston Channel Lat/Long