The Aqueduc de la Brévenne, also known as the Aqueduc de l'Yzeron, is an ancient Roman aqueduct that supplied water to Lugdunum (Lyon) from the 1st to 4th centuries AD. Stretching approximately 40 kilometers from the Brévenne and Yzeron Rivers near Saint-Martin-en-Haut, it was one of four major aqueducts serving ...