Southwest Arm is a Bay located in Mount Scio, Newfoundland and Labrador and has an elevation of 143 meters.

• Latitude: 47° 34' 54'' North   (decimal: 47.5816666)
• Longitude: 52° 49' 11'' West   (decimal: -52.8197222)
• Topography Feature Category: Bay
• Geographical Feature: Arm
• Canadian Province/Territory: Newfoundland and Labrador
• Elevation: 143 meters
• Location: Mount Scio
• Atlas of Canada Locator Map: Southwest Arm
• GPS Coordinate Locator Map: Southwest Arm Lat/Long