Mandas is located in the northernmost part of the geographical region called Trexenta, nestled on the border between the geographical regions called Barbagia di Seulo, Barbagia di Belvì, Sarcidano. Today no longer, but historically the limit and contact between morphologically and socially different realities. This position as a "gateway to the barbagie", combined with the excellent soil and climate conditions and the presence of numerous water sources, have favored the settlement of man in these lands since the most remote times. A significant cultural multi-stratification, in which the Nuragic civilization succeeded, without apparent continuity, from clearly Punic phases and subsequently from the Roman, early medieval and current eras. We are talking about settlements of considerable size, very interesting for the reconstruction of the population of the territory in different eras, up to the present day.