St. Mary's Sugar Brook is a River located in St. Mary's-The Capes, Newfoundland and Labrador.

• Latitude: 47° 2' 16'' North   (decimal: 47.0377777)
• Longitude: 53° 53' 36'' West   (decimal: -53.8933333)
• Topography Feature Category: River
• Geographical Feature: Brook
• Canadian Province/Territory: Newfoundland and Labrador
• Location: St. Mary's-The Capes
• Atlas of Canada Locator Map: St. Mary's Sugar Brook
• GPS Coordinate Locator Map: St. Mary's Sugar Brook Lat/Long