The Truyère River is a river located in the south-central region of France. It flows through the Cantal and Aveyron departments, eventually joining the Lot River. The river is approximately 130 kilometers long and is known for its scenic landscapes and recreational opportunities, including fishing and kayaking. The Truyère River is also notable for the Garabit Viaduct, a famous railway bridge designed by Gustave Eiffel. This impressive structure spans the river and is a popular tourist attraction. The river's waters are primarily fed by rainfall and snowmelt from the surrounding mountains, contributing to its flow and ecosystem.