Big Jonas Cove is a Bay located in St. Mary's-The Capes, Newfoundland and Labrador.

• Latitude: 47° 6' 15'' North   (decimal: 47.1041666)
• Longitude: 53° 41' 4'' West   (decimal: -53.6844444)
• Topography Feature Category: Bay
• Geographical Feature: Cove
• Canadian Province/Territory: Newfoundland and Labrador
• Location: St. Mary's-The Capes
• Atlas of Canada Locator Map: Big Jonas Cove
• GPS Coordinate Locator Map: Big Jonas Cove Lat/Long