Lac des Théridions is a Lake located in Lac-Ashuapmushuan; Le Domaine-du-Roy, Quebec and has an elevation of 451 meters.

• Latitude: 49° 57' 50'' North   (decimal: 49.9638889)
• Longitude: 73° 44' 14'' West   (decimal: -73.7372222)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 451 meters
• Location: Lac-Ashuapmushuan; Le Domaine-du-Roy
• Atlas of Canada Locator Map: Lac des Théridions
• GPS Coordinate Locator Map: Lac des Théridions Lat/Long