The highest mountain on the Island of Elba, Monte Capanne, stands at 1019 metres above sea level, and is in the granite massif on the western side of the island; after that comes Monte Orello (385 metres above sea level), in the central part, and Cima del Monte (516 metres above sea level), on the eastern side.

The highest mountain on the Island of Giglio is Poggio della Pagana at 496 metres above sea level, while in Capraia it is Monte Castello, at a height of 445 metres above sea level. On the mysterious Island of Montecristo, shaped like a granite cone, Monte della Fortezza reaches 645 metres above sea level, with several ridges towards the south as far as Cima dei Lecci, at a height of 563 metres.

The major mountains on the Island of Giannutri aren't particularly high: Poggio del Cannone, in the north, is only 68 metres above sea level, while Monte Mario in the centre is 78 metres above sea level, and Poggio del Capel Rosso, in the south, is 88 metres above sea level. As regards Gorgona, the highest mountain is Punta Gorgona, that stands at a height of 255 metres above sea level. On the other hand, the prize for the lowest mountain in the Tuscan Archipelago must go to Pianosa; as the name suggests, there aren't any mountains on the island, just a small tableau that reaches about 29 metres.