Sardinia along with the Aosta Valley, Trentino-Alto Adige/Südtirol, Friuli Venezia Giulia and Sicily. Its particular statute, which in itself is a constitutional law, gives the region a limited degree of autonomy, entailing the right to carry out the administrative functions of the local body and to create its own laws in a strictly defined number of domains. The regional administration is constituted by three authorities: Since 2016, Sardinia is divided into four provinces (Nuoro, Oristano, Sassari, South Sardinia) and the metropolitan city of Cagliari. Around 65% of all the Italian and NATO military installations in Italy are on Sardinia, whose area
Sardinia mainland peninsula. The Strait of Bonifacio is directly north of Sardinia and separates Sardinia from the French island of Corsica. The coasts of Sardinia [ long] are generally high and rocky, with long, relatively straight stretches of coastline, many outstanding headlands, a few wide, deep bays, rias, many inlets and with various smaller islands off the coast. The island has an ancient geoformation and, unlike Sicily and mainland Italy, is not earthquake-prone. Its rocks date in fact from the Palaeozoic Era (up to 500 million years old). Due to long erosion processes, the island's highlands, formed of granite, schist, trachyte,