Lac aux Os is a Lake located in Lac-Ashuapmushuan; Le Domaine-du-Roy, Quebec and has an elevation of 606 meters.

• Latitude: 48° 31' 55'' North   (decimal: 48.5319444)
• Longitude: 73° 23' 55'' West   (decimal: -73.3986111)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 606 meters
• Location: Lac-Ashuapmushuan; Le Domaine-du-Roy
• Atlas of Canada Locator Map: Lac aux Os
• GPS Coordinate Locator Map: Lac aux Os Lat/Long