Thompson Marsh is a Low vegetation located in Muskoka, Ontario and has an elevation of 240 meters.

• Latitude: 44° 57' 20'' North   (decimal: 44.9555555)
• Longitude: 79° 34' 44'' West   (decimal: -79.5788888)
• Topography Feature Category: Low vegetation
• Geographical Feature: Marsh
• Canadian Province/Territory: Ontario
• Elevation: 240 meters
• Location: Muskoka
• Atlas of Canada Locator Map: Thompson Marsh
• GPS Coordinate Locator Map: Thompson Marsh Lat/Long