The fortress fits into the typology of complex or evolved Late Bronze Age (1330- 1000 BC) nuraghi. This nuraghe, the most imposing in southern Sardinia, consists of a bastion formed by nine towers (if not more) and antemural walls equipped with at least five towers alternating with curtain walls. The material used is characterized by Tertiary volcanites outcropping locally; the boulders used are medium-sized, sometimes even small. Some parts, such as the embrasures, have been more finished and cared for. The walls enter two rocky outcrops that make the fortress even more stable and secure. It is clear that the complexity of the fortress is due to the succession of different construction phases. There was probably a need to expand the useful space within the fortress: either to accommodate new guests or to fulfill new defensive strategies. In addition to being a fortified residence, in fact, Su Castedd’e Fanaris fulfilled a specific defensive function in the strategic connecting corridor that united the mining area of Sulcis-Iglesiente with central Sardinia.
