Marathon Lake is a Lake located in Cochrane, Ontario and has an elevation of 273 meters.

• Latitude: 48° 53' 25'' North   (decimal: 48.8902777)
• Longitude: 80° 21' 12'' West   (decimal: -80.3533333)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: Ontario
• Elevation: 273 meters
• Location: Cochrane
• Atlas of Canada Locator Map: Marathon Lake
• GPS Coordinate Locator Map: Marathon Lake Lat/Long