Semiwagan Deadwater is a River feature located in Northumberland, New Brunswick and has an elevation of 53 meters.

• Latitude: 46° 47' 23'' North   (decimal: 46.7896527)
• Longitude: 65° 37' 00'' West   (decimal: -65.6165523)
• Topography Feature Category: River feature
• Geographical Feature: Deadwater
• Canadian Province/Territory: New Brunswick
• Elevation: 53 meters
• Location: Northumberland
• Atlas of Canada Locator Map: Semiwagan Deadwater
• GPS Coordinate Locator Map: Semiwagan Deadwater Lat/Long