[2] At the foot of the stone, in the municipal territory of Bobbio, there is an oratory dedicated to Our Lady of Caravaggio, located near the locality of Brodo and attached to the parish church of Mezzano Scotti.

[3] This flap was thus incorporated, as an olistolite, into the geological formation, rich in clay component, that was being deposited on the bottom at that time.,[4] which is known by the name of chaotic complex or Parcellara Stone complex[3] Once the Apennine relief was created, the processes of meteoric degradation and the action of runoff waters led the hard serpentine mass to emerge, due to the phenomenon of differential erosion, leading it to dominate the surrounding landscape, which is composed mainly of flaky clays.

S.Michele) della Perduca, S. Andrea, S. Maria, Signano, Fellino, Fiorano, Mezzanello, Pigazzano, Bobbiano, Denavolo, Chiosi, Quadrelli, Scarniago, Statto, Viserano.

In 1269 the commune of Piacenza succeeded in occupying the neighboring territories, including the fiefdom of Parcellara and the castle, which would, therefore, be completely destroyed,[10] despite the protests of the bishop of Bobbio.

From this point the ascent becomes more challenging due to the presence of several rocky ledges to overcome; the route is constantly on or near the ridge and has no natural protection on the sheer walls.