Lac Crassus is a Lake located in Lac-Jacques-Cartier; La Côte-de-Beaupré, Quebec and has an elevation of 772 meters.

• Latitude: 47° 22' 25'' North   (decimal: 47.3736111)
• Longitude: 71° 21' 59'' West   (decimal: -71.3663889)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 772 meters
• Location: Lac-Jacques-Cartier; La Côte-de-Beaupré
• Atlas of Canada Locator Map: Lac Crassus
• GPS Coordinate Locator Map: Lac Crassus Lat/Long