Dennisons Marsh is a Low vegetation located in Nipissing, Ontario and has an elevation of 388 meters.

• Latitude: 45° 36' 49'' North   (decimal: 45.6136111)
• Longitude: 77° 55' 00'' West   (decimal: -77.9166666)
• Topography Feature Category: Low vegetation
• Geographical Feature: Marsh
• Canadian Province/Territory: Ontario
• Elevation: 388 meters
• Location: Nipissing
• Atlas of Canada Locator Map: Dennisons Marsh
• GPS Coordinate Locator Map: Dennisons Marsh Lat/Long