Lac à la Souris is a Lake located in Rivière-de-la-Savane; Mékinac, Quebec.

• Latitude: 47° 12' 21'' North   (decimal: 47.2058808)
• Longitude: 73° 50' 34'' West   (decimal: -73.8429159)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Rivière-de-la-Savane; Mékinac
• Atlas of Canada Locator Map: Lac à la Souris
• GPS Coordinate Locator Map: Lac à la Souris Lat/Long