Lac à Têtu is a Lake located in Saint-Modeste; Rivière-du-Loup, Quebec.

• Latitude: 47° 50' 2'' North   (decimal: 47.8338889)
• Longitude: 69° 21' 00'' West   (decimal: -69.3499999)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Saint-Modeste; Rivière-du-Loup
• Atlas of Canada Locator Map: Lac à Têtu
• GPS Coordinate Locator Map: Lac à Têtu Lat/Long