Porto Torres (Sassarese: Posthudorra; Sardinian: Portu Turre) is a comune (municipality) and a city of the Province of Sassari in north-west of Sardinia, Italy.

The discovering has started casually thanks to some hobbyist paleontologists that have noticed after some maintenance works in the near thermal power station the presence of some fossils in the excavation debris.

In this necropolis have two skulls were found with the presence of some sort of surgical procedure probably practiced to heal issues like migraines and tumors.

According to inscriptions on ancient milestones, the principal road through the island ran directly from Caralis (Cagliari) to Turris, a sufficient proof that the latter was a place much frequented.

[6] Indeed, two roads, which diverged at Othoca (modern Santa Giusta) connected Caralis to Turris, the more important keeping inland and the other following the west coast.

[6] There exists also the remains of a temple (which, as we learn from an inscription, was dedicated to Fortune, and restored in the reign of Philip between 247 and 249), of thermae, of a basilica and an aqueduct, as well as a bridge over the adjoining small river, still called the Fiume Turritano.

The ancient city continued to be inhabited until the 11th century, when most of the population migrated to Sassari, about 15 kilometres (9 mi) inland, and on a hill.

At the time, the area which had been built around the basilica of Saint Gavino joined the fishermen's community near the port to form the new Porto Torres.

One part includes the city, the industrial area, and the Roman ruins; the other consists of two islands, Asinara and the smaller Isola Piana.

The morphology of "city part" is flat; the area of Porto Torres and the rest of north-west Sardinia is characterized by a Nurra plain, with some hill formations in the middle of it.

Part of this hill formation is in the municipality of Porto Torres, the highest elevation being Monte Alvaro, rising to a height of 342 m above sea level.

The first flows along the edge of Porto Torres to the west, while the second runs near the city and was used as a navigable river as early as the days of ancient Rome.

Fiume Santo, a 1,040 MW power station owned by E.ON, is 5 to 10 kilometres (3 to 6 mi) west from the city, in the municipality of Sassari.

[19] The "Fisherman's regatta" is a competition where the fishermen try to fishing using only traditional early 20th-century equipment like rowing boats without any use of modern tools like the GPS tracker.

In the Porto Torres's comprehensive planning there are many civil buildings both of private propriety and owned by the comune that are considered historically significant.

Sports like Karate shotokan, MMA, Boxing, Jujitsu, Krav-Maga and Self-defense are very appreciated and practiced by some part of the citizens.

Porto Torres is part of the metropolitan network of north Sardinia (Italian "Rete metropolitana del nord Sardegna").