The largest Mediterranean island, Sicily is triangular and formerly was sometimes called Trinacria [Gr.,=triangle]; capes Boeo (or Lilibeo), Passero, and Punta del Faro (or Peloro) are the vertices of the triangle. The island is almost entirely covered by hills and mountains (continuations of the Apennines); Mt. Etna (10,700 ft/3,261 m), in the east, is the highest point. The only wide valley is the fertile plain of Catania in the east, mostly located along the lower Simeto River. There are also narrow coastal strips in the south and west, and a small fertile plain (the Conca d'Oro) near Palermo in the northwest.
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