Lac Auston is a Lake located in Lac-Ashuapmushuan; Le Domaine-du-Roy, Quebec and has an elevation of 391 meters.

• Latitude: 49° 24' 42'' North   (decimal: 49.4116667)
• Longitude: 73° 46' 14'' West   (decimal: -73.7705556)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 391 meters
• Location: Lac-Ashuapmushuan; Le Domaine-du-Roy
• Atlas of Canada Locator Map: Lac Auston
• GPS Coordinate Locator Map: Lac Auston Lat/Long