The Lot, is the right tributary of the Garonne. It rises in the Cévennes, flowing west through Quercy, where it flows into the Garonne near Aiguillon, a total distance of 481 kilometers (299 mi). It gives its name to the Lot department. The Lot is prone to flooding in the winter and spring.
The Lot flows through the following departments and towns:
Aveyron: Entraygues-sur-Truyère, Capdenac-Gare
Lot-et-Garonne: Villeneuve-sur-Lot, Aiguillon
The river was used for transport as early as the 12th century when 11 flash locks were installed between Penne-d’Agenais and Fumel. A reliable route was not provided until the 17 century when new locks were ordered.