Mill Brook is a River located in Northumberland, New Brunswick and has an elevation of 68 meters.

• Latitude: 46° 34' 23'' North   (decimal: 46.5729442)
• Longitude: 66° 1' 2'' West   (decimal: -66.0173573)
• Topography Feature Category: River
• Geographical Feature: Brook
• Canadian Province/Territory: New Brunswick
• Elevation: 68 meters
• Location: Northumberland
• Atlas of Canada Locator Map: Mill Brook
• GPS Coordinate Locator Map: Mill Brook Lat/Long