Lac à la Mousse Rouge is a Lake located in Lac-Walker; Sept-Rivières, Quebec.

• Latitude: 50° 11' North   (decimal: 50.1832999)
• Longitude: 67° 38' West   (decimal: -67.6333000)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Lac-Walker; Sept-Rivières
• Atlas of Canada Locator Map: Lac à la Mousse Rouge
• GPS Coordinate Locator Map: Lac à la Mousse Rouge Lat/Long