The area called Bec Berciassa is located at the confluence of the Gesso and Vermenagna streams, on a hill at 692 metres a.s.l., marked by a small shrine and in a dominant position over the surrounding valleys, along transalpine routes that have been used since recent prehistory.
The first studies of the site date back to the early fifties of the last century, when the famous scholar F. Rittatore Vonwiller carried out two small essays that allowed him to hypothesize a frequentation of the site starting from the Final Bronze Age (XI-VIII BC), with a continuous occupation during the Iron Age, up to the Romanization of the territory, which took place around the II century. BC.
Recent investigations have confirmed that the area near the Bec, from the Bronze Age to the Romanization, hosted a settlement inhabited by the ancient Celtic-Ligurian people where huts, probably made of wood and covered with straw, were located on stone terraces, created in the sunny slope that descends towards Robilante;, while the place towards Roccavione was “protected” both by the cold winds of the North, and by the danger of raids by men and feral animals from a steep slope.