Lac Sylvie is a Lake located in Lac-Ashuapmushuan; Le Domaine-du-Roy, Quebec and has an elevation of 490 meters.

• Latitude: 48° 12' 30'' North   (decimal: 48.2083333)
• Longitude: 73° 21' 27'' West   (decimal: -73.3575)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 490 meters
• Location: Lac-Ashuapmushuan; Le Domaine-du-Roy
• Atlas of Canada Locator Map: Lac Sylvie
• GPS Coordinate Locator Map: Lac Sylvie Lat/Long