Vallone dei Mulini

The Vallone dei Mulini, or Valley of the Mills, is a deep natural gorge that runs beside Piazza Tasso in the centre of Sorrento, in Italy's Campania region. The ravine cuts into the tufa plateau on which the town sits and once reached nearly to the sea, forming a natural barrier. Streams and humid air in the gorge made it a suitable place for flour mills, which operated from the medieval period until the 19th century, and the ruined mill buildings still visible at the bottom belong to that long milling tradition. A later small structure was used as a wash house, and the damp conditions encouraged ferns and moss that now give the gorge a green, almost wild character in the middle of a busy town. The valley also helped define Sorrento's urban history. Its steep sides limited expansion in this direction, and the old city developed on the plateau around it, with Piazza Tasso built over the head of the ravine when a bridge and later a filled-in section reshaped the square. Visitors can see the gorge from a railing at the edge of the piazza and from the lane that follows its rim; the bottom is not generally open to walk down, so the viewing is from above. There is no museum, ticket office or interpretive trail, although signs and local guides describe the mills and their role in feeding the town. The ruins have been left to weather rather than rebuilt, and vegetation continues to cover the walls, so the current state is a picturesque decay rather than a restored site. The viewing point is free and open around the clock, and it takes only a few minutes, making it an easy addition to a walk through the historic centre. It sits close to the Sedil Dominova, the cathedral and the shops of Corso Italia. For readers interested in how topography and water power shaped a southern Italian town, the gorge is a brief but vivid illustration that can be seen without leaving the main square.