Located to the west of the city of Olbia, it stands on the summit of a granite outcrop dominating a vast flat area.
Nearby, you will find two sites from the Nuragic era, the tomb of the giants of Monte ‘e S’Abe and the Nuraghe Casteddhu.
The castle was built in the XIII century, during the Visconti period of the Judicate of Gallura to defend Civita (modern-day Olbia) and the borders with the Judicate of Torres. It was occupied from the middle of the XIV century by the Aragonese and abandoned in the XV century. The castle served both for defence purposes and as a residence.
The fortified layout, which has been restored, is made up of two curtain walls positioned on different levels: the first one, in a four-sided shape , encompasses a terracing half way up the promontory; the second one, in a polygonal shape, encloses the peak of the hill. The terracing and peak are linked by a stairway.
The remains of some buildings are preserved at the top of the promontory: a square-shaped tower standing about 10 m high, at its highest point and created with blocks of granite and tuff; a rectangular building with a triple cross-vault roof and a cistern in the middle; a rectangular-shaped room now collapsed and originally covered by a barrel-vaulted ceiling; a building constructed during the second world war.
From Olbia, follow the country road SP24 in the direction of Loiri to reach the site. After about 3.3 km you will come to a road on your right indicating the castle. Turn right and continue along this road for about 2 km until you come to the car park. Continue on foot for about 1 km to reach the castle.