Branche Sud-Ouest is a River located in L'Islet; L'Islet, Quebec.

• Latitude: 47° 7' 51'' North   (decimal: 47.1308561)
• Longitude: 70° 20' 18'' West   (decimal: -70.3384054)
• Topography Feature Category: River
• Geographical Feature: Rivière
• Canadian Province/Territory: Quebec
• Location: L'Islet; L'Islet
• GPS Coordinate Locator Map: Branche Sud-Ouest Lat/Long