For some way beyond the only seaport is Bosa, which has only an open roadstead; and at the southern extremity of the Nurra come the Gulf of Alghero and the Porto Conte to the W., the latter a fine natural harbour but not easy of ingress or egress.
The Campidano and other fertile spots, such as the so-called Ogliastra on the east side of the island, inland of Tortoli, the neighbourhood of Oliena, Bosa, &c., produce a considerable quantity of wine, the sweet, strong, white variety called Vernaccia, produced near Oristano, being especially noteworthy.
The cultivation of olives is widespread in the districts of Sassari, Bosa, Iglesias, Alghero and the Gallura.
To Bosa, from Sassari S.W.
Besides those already mentioned, including the Phoenician cities (all of which continued to exist in Roman days) the most important were Bosa (q.v.), Towns Forum Traiani (mod.