Lac de la Mousse is a Lake located in Saint-Eugène-de-Ladrière; Rimouski-Neigette, Quebec.

• Latitude: 48° 7' 59'' North   (decimal: 48.1330858)
• Longitude: 68° 43' 34'' West   (decimal: -68.7261375)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Saint-Eugène-de-Ladrière; Rimouski-Neigette
• GPS Coordinate Locator Map: Lac de la Mousse Lat/Long