Ploughshare Rock is a Shoal located in Saint John, New Brunswick and has an elevation of 23 meters.

• Latitude: 45° 11' 48'' North   (decimal: 45.1966676)
• Longitude: 65° 55' 28'' West   (decimal: -65.9243740)
• Topography Feature Category: Shoal
• Geographical Feature: Rock
• Canadian Province/Territory: New Brunswick
• Elevation: 23 meters
• Location: Saint John
• Atlas of Canada Locator Map: Ploughshare Rock
• GPS Coordinate Locator Map: Ploughshare Rock Lat/Long