Décharge du Lac à Thom is a River located in Saint-Ubalde; Portneuf, Quebec.

• Latitude: 46° 46' 35'' North   (decimal: 46.7764174)
• Longitude: 72° 19' 23'' West   (decimal: -72.3231599)
• Topography Feature Category: River
• Geographical Feature: Ruisseau
• Canadian Province/Territory: Quebec
• Location: Saint-Ubalde; Portneuf
• Atlas of Canada Locator Map: Décharge du Lac à Thom
• GPS Coordinate Locator Map: Décharge du Lac à Thom Lat/Long