Lac à Ti-Mousse is a Lake located in Sainte-Marie; La Nouvelle-Beauce, Quebec.

• Latitude: 46° 24' 56'' North   (decimal: 46.4155849)
• Longitude: 70° 55' 57'' West   (decimal: -70.9325794)
• Topography Feature Category: Lake
• Geographical Feature: Étang
• Canadian Province/Territory: Quebec
• Location: Sainte-Marie; La Nouvelle-Beauce
• Atlas of Canada Locator Map: Lac à Ti-Mousse
• GPS Coordinate Locator Map: Lac à Ti-Mousse Lat/Long