Nuraghe "a Is Paras", therefore called because the land on which it has been constructed was of property of the Fathers Scolopi (1600), finds on the top of a small marly relief to 505 m s.l.m. in the immediate periphery north of the inhabited center.
Thanks to a contribution of XIII the Montana Community and the Common one of Isili, in the June of the 1998 are resumed scientific surveyings of situated (the first campaign of digging laughed them to 1974-76). It has been therefore possible to evidence the new profile architectonic and one rilettura of its is made constructive. On the base of the data emerged, in fact, the nuraghe has had one rather articulated history.
Phase I Single-Tower Nuraghe 15.-14. cent. BC
The oldest phase of the monument probably goes back to the Medium Bronze Age, when it is built as a single tower without any additional element and without a surrounding wall.
The used material is mainly local stones: limestone (of two colours: white and brown), and in the final rows originally also blocks of black basalt were present. The construction technique consists in the creation of regular horizontal rows: 37 rows of big sub-rectangular blocks that get narrower the higher they are, producing a form of suggestive beauty. The inner room with its tholos (cupola) is in fact the highest (11,80m – 33 ft) and most harmonic among the known cupolas of nuraghes.
Phase II Nuraghe with cortyard 13.– 12. cent. BC
In the Recent Bronze Age to the first tower a smaller tower has been added, versus south-east, and an open courtyard unites the two buildings.
Phase III Three-lobal Nuraghe. 12.-11. cent. BC
From the Recent Bronze Age to the End of Bronze Age another two towers have been added, one oriented versus north-east and the other versus west. Around the three towers a surrounding defensive wall has been constructed, with towers and small courtyards.
Phase IV Nuraghe and surrounding village. 11.-8.cent. BC
In the eastern and south-western part, between the three-towered nuraghe and the surrounding wall there are distributed a lot of small round huts. Therefore, the excavations of 1998 are obviously only one step in the research about the monument, because many elements must still be revealed.
Phase V High-mediaeval village. 2.-8. cent. AD
The site has been frequented later, in the Roman Period and in the Middle Age.
During the excavation numerous objects have been found: bowls, pottery, bone elements probably parts of a chain, a bronze fibula of the byzantine period etc.