Alder Brook is a River located in Northumberland, New Brunswick and has an elevation of 259 meters.

• Latitude: 47° 23' 26'' North   (decimal: 47.3906255)
• Longitude: 66° 25' 22'' West   (decimal: -66.4227355)
• Topography Feature Category: River
• Geographical Feature: Brook
• Canadian Province/Territory: New Brunswick
• Elevation: 259 meters
• Location: Northumberland
• Atlas of Canada Locator Map: Alder Brook
• GPS Coordinate Locator Map: Alder Brook Lat/Long