McKay Brook is a River located in Northumberland, New Brunswick and has an elevation of 24 meters.

• Latitude: 46° 58' 16'' North   (decimal: 46.9711617)
• Longitude: 65° 38' 19'' West   (decimal: -65.6386368)
• Topography Feature Category: River
• Geographical Feature: Brook
• Canadian Province/Territory: New Brunswick
• Elevation: 24 meters
• Location: Northumberland
• Atlas of Canada Locator Map: McKay Brook
• GPS Coordinate Locator Map: McKay Brook Lat/Long