The mills trail begins ath the Acero aqueduct, a few meters away from the basilica of San Pietro alli Marmi. The trail become rather narrow and it is only possible to walk it. The first mill we encounter is the “Mulino di Zì Matteo” after which you can reach the first panoramic view spot. Following on you reach a little historical bridge on the Ermice and going down on the right you reach some stone steps which lead to a little fountain. Walking on you reach the remains of an ancient aqueduct, the remains are covered in vegetation. Having crossed the small bridge you continue towards north where you reach an arc structure which cuts the course of the Ermice. Continuing you reach at the end of a brook some small water baths which are a popular destination for early spring bathing. Not too far from here you can see a mill which is still in perfect condition. Soon after this you reach the spring from which the Ermice is born known as the “Buatt”. Following the river bed you reach the Turmine plain at the feet of the Madonna del Carmine hill, and the border of the woods of S. Donato. Following the channeling of water running through the mill, you'll reach the old medieval aqueduct with its powerful arches dominate the landscape behind the castle. At the end of the arches there was a construction that unequivocally brings us back to the mills (IV mill) for the presence of the characteristic jump of water and for the feedback that is easy to get from the tracks left by the collapsed walls. Following the channels, you come to the usual jump onto fragments of a wall structure which, significantly, is referred to as "U Mulino carut' ”. In the past, the water, in addition to being used for the mills, was also used for irrigation purposes, for washing linen and, in the urban center, even for small craft and productive requirements. In fact, along the way, near the road it called the "Portella" (small door to the Historic Centre), there is the characteristic structure of a lavatory, which was active until the sixties. We then arrive at the Historic Centre, the ducts lead us right to the palace of the family Morrone located between the valley Tufara. Continuing the route, in the Ancient Center other mills were present. In Vico Torretta other two structures offset from one another, used the same water, both to grind cereals and produce olive oil. Millstones used as the jar holders are still on display on the sidelines of the valley to indicate the humble function of a time that was. More than half a kilometer from the city, close to the course dell'Ermice -Tufara, downstream of Highway 19, just before the railroad, a structure called "Molinello" clearly denotes the old function of a mill and gives the name to an entire city district, built in the sixties. The main building, ending with a characteristic tower , still retains its original layout, with the rooms on the ground floor supported by masonry arches, typical of industrial activities and crafts, requiring of large spaces for machinery, storage of raw materials and manufacturing processes. This structure closes the path of the mills on the course of the Ermice.