Rivière Trenche Sud is a River located in Lac-Ashuapmushuan; Le Domaine-du-Roy, Quebec and has an elevation of 492 meters.

• Latitude: 48° 28' 14'' North   (decimal: 48.4705995)
• Longitude: 73° 13' 20'' West   (decimal: -73.2223296)
• Topography Feature Category: River
• Geographical Feature: Rivière
• Canadian Province/Territory: Quebec
• Elevation: 492 meters
• Location: Lac-Ashuapmushuan; Le Domaine-du-Roy
• Atlas of Canada Locator Map: Rivière Trenche Sud
• GPS Coordinate Locator Map: Rivière Trenche Sud Lat/Long