Sinclair Brook is a River located in Northumberland, New Brunswick and has an elevation of 382 meters.

• Latitude: 47° 4' North   (decimal: 47.0666999)
• Longitude: 66° 34' West   (decimal: -66.5666999)
• Topography Feature Category: River
• Geographical Feature: Brook
• Canadian Province/Territory: New Brunswick
• Elevation: 382 meters
• Location: Northumberland
• Atlas of Canada Locator Map: Sinclair Brook
• GPS Coordinate Locator Map: Sinclair Brook Lat/Long