Gowanmarsh Lake is a Lake located in Cochrane, Ontario and has an elevation of 289 meters.

• Latitude: 48° 38' 29'' North   (decimal: 48.6413888)
• Longitude: 81° 10' 34'' West   (decimal: -81.1761111)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: Ontario
• Elevation: 289 meters
• Location: Cochrane
• Atlas of Canada Locator Map: Gowanmarsh Lake
• GPS Coordinate Locator Map: Gowanmarsh Lake Lat/Long