Known as Cidade Velha (Old City), this is one of the most well-known hillforts in the north of Portugal. It is also one of the most important in terms of the study of the Protohistory and Romanization of the Alto Minho region.
Its location permitted the dominance of vast littoral areas as well as the control of all entries and exits from the Lima River, which was greatly navigable at that time. This settlement
differentiates itself greatly from others in terms of architectonic structures. In this case, some were polygonal and presented a circular plan with a vestibule or atrium.