Petit lac Trenche is a Lake located in Lac-Ashuapmushuan; Le Domaine-du-Roy, Quebec and has an elevation of 567 meters.

• Latitude: 48° 37' 33'' North   (decimal: 48.6258333)
• Longitude: 73° 28' 26'' West   (decimal: -73.4738889)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 567 meters
• Location: Lac-Ashuapmushuan; Le Domaine-du-Roy
• Atlas of Canada Locator Map: Petit lac Trenche
• GPS Coordinate Locator Map: Petit lac Trenche Lat/Long