The Parcellara Stone (836 m) is a black serpentine ophiolite that dominates the surrounding hills from which it abruptly detaches; from its top, you can enjoy a panoramic view of the entire Trebbia Valley, the Bobbiano Valley, the Luretta Valley, Mount Penice, and the surrounding areas.
At the foot of the stone, the oratory is dedicated to the Madonna of Caravaggio. In the Lombard era, a monastic castrum was built in the area and subsequently became part of the possessions of the Mezzano Scotti monastery, later passing to the Malaspina family. In 1120, Piacenza and the Guelph troops occupied the area during the war against the Bobbian Ghibellines; however, the Malaspinas managed to resist and, later, reoccupy the area. In 1155, it was sold by the Malaspinas to the noble Perduca family.
In 1170, the Pietra Parcellara area was attacked again by the Guelph troops from Piacenza, who placed the castle under siege; after months of fighting, the Guelph militias were forced to retreat. In 1269, the municipality of Piacenza managed to occupy the neighboring territories, including the Parcellara fiefdom and the castle, which was utterly destroyed.

At the base of the Perduca stone, on the western side, it is accessed by a short stone staircase. Probably founded in the 10th century by the monks of the Abbey of San Colombano di Bobbio. Originally consecrated to Maria Assunta, over time it has suffered collapses and alterations, and in the 19th century it was dedicated to Saint Anne. Inside, in addition to paintings depicting, among others, Saint Columbanus, it preserves a mystical relic: a boulder on which, according to tradition, the imprint of the Madonna’s foot is visible. The church is closed all year round, with the exception of the feast dedicated to Saint Anne at the end of July. The entrance portal stands out on the stone façade, above whose architrave are engraved Latin and probably Celtic characters. The site was in fact considered a sacred place since ancient times: here the cult dedicated to Penn took place, a Celtic deity venerated in many parts of Italy (from which the names of Mount Penice and the Apennines probably derive). From the pagan cult of the Celts-Ligures, we moved on to the pre-Christian cult of Minerva Medica, whose temple then became the basis for the construction of the oratory in the Christian era. It is no coincidence that the little church is dedicated to Saint Anne, wife of Joachim and considered sterile, but who conceived the Virgin Mary, very late in life. Pagan mysteries mix with Christian rites, the place is magical and fascinating and the natural spectacle completes a suggestive and unique scenario. To visit the interior it is necessary to contact Camillo Piga, the custodian of the Perduca, who will come to open the oratory for you and act as your guide. (Telephone: 366-57.27.476).

The Perduca Stone (659 m), which emerged from the magma of the earth’s mantle about 250 million years ago, is a serpentine ophiolite. Despite being located in an area somewhat lacking in humid environments on the stone, there are colonies of great crested newts and alpine newts, which use the rainwater collection tanks on the top of the relief to reproduce. The walls, made up of rocky material, offer a suitable habitat for the presence of diurnal birds of prey, including the kestrel, the sparrowhawk, the short-toed hawk, and the buzzard.
The first settlements near the Perduca Stone date back to Prehistory: remains dating back to the Middle Neolithic have been found in the area. Traces of a settlement dating back to the Bronze Age have been found on the summit. The presence of basins dug into the stone intended to collect rainwater suggests that pagan cults frequented the relief. Subsequently, some remains of materials indicate that a furnace may have been active in the area in Roman times.
On the western side is the oratory of Saint Anne, a fifteenth-century construction built on a pre-existing building dedicated to the Madonna Assunta, which may have been founded by the monks of the abbey of San Colombano di Bobbio around the tenth century.
The primitive religious building collapsed due to heavy damage caused by an earthquake. In its replacement, in the 12th century, a new oratory was built. In 1170, the manor was occupied by Guelph troops from Piacenza, who razed it to the ground. During the 15th century, the oratory was heavily remodeled, leaving only some traces of the pre-existing building, such as the remains of some 15th-century frescoes on the walls depicting, among others, Saint Anthony Abbot, Saint Nicholas, Saint Jeoge, Saint Michael weigher of souls and Saint Columban.
Subsequently, a castle was built in the area, which was part of the possessions of the Perduca family, from which the name of the mountain derives.
For climbing lovers, Pietra Perduca presents an ideal gym.

The Roman foundation, documented in 747 with the construction of the Benedictine monastery of St. Paul, was transformed into a fortress abandoned in 1460 due to the transfer to the nearby Torre di Cadonica. The monastery passed to the Scotti family, in 1551 to the Caracciolo family, and the mid-19th century to the Follini family; the inventories are incorporated into homes.