In Fes, for example, this was accomplished via a complex network of canals and channels which captured the waters of the "Oued Fes" (Fes River) and distributed them across the entire city. These water channels (most of them now hidden under buildings) supplied houses, gardens, fountains, and mosques, powered "noria"s (waterwheels), and sustained certain industries such as the tanneries (e.g. the famous Chouara Tannery). Waterwheels were also used to lift water from these canals and into aqueducts to bring them even further, such as the enormous "noria", with a diameter of 26 meters, built by the Marinids to supply their Royal Gardens to the north of Fes el-Jdid.