A place of fortifications, nature and legends, the area of the Monte Acuto fortress, commonly known as the Roccaccia, because of a nobleman who tyrannized over the local population, is located on a rock formation between two valleys, at 740 meters above sea level. Of this ancient fortress today only a few remains of a tower and sections of masonry remain standing, erected in these places considered safe during the war between the Byzantines and the Lombards. Numerous legends are still told of mysterious weavers, of hens that laid golden eggs, of snakes guarding hidden treasures, tales of battles along the Potenza river valley below, but also stories of sanctity, such as that of the young Santa Sperandia who lived in solitude in a cave right on these mountains. A wild kingdom due to its isolation, for this reason so loved by hermits, but particularly beautiful and full of views that today represents the border between the municipalities of San Severino Marche, Treia and Cingoli.