The Herrerías aqueduct is an old hydraulic infrastructure designed to supply energy to a blacksmith shop in Campillo de Deleitosa. Later it would also be used to supply three mini power plants. Actually, the aqueduct is only part of a larger work, which consists of a seven-kilometer canal and its related structures. This canal begins in a dam built right where the Batanes, Colmenar and Torneros gorges converge.