Lac Cassini is a Lake located in Rapides-des-Joachims; Pontiac, Quebec and has an elevation of 323 meters.

• Latitude: 46° 21' 42'' North   (decimal: 46.3617274)
• Longitude: 77° 44' 46'' West   (decimal: -77.7461412)
• Topography Feature Category: Lake
• Geographical Feature: Étang
• Canadian Province/Territory: Quebec
• Elevation: 323 meters
• Location: Rapides-des-Joachims; Pontiac
• Atlas of Canada Locator Map: Lac Cassini
• GPS Coordinate Locator Map: Lac Cassini Lat/Long