The Tuscan territory is for the most part a hilly territory (66.5%), although also it has rolling plains (about 8.4% of the territory) and important mountain ranges (25.1%).

* Principal mountains: Prado Mountain: 2054 m, Giovo Mountain: 1991 m, Rondinaio Mountain: 1964 m, Pisanino Mountain: 1946 m, Alpe delle Tre Potenze: 1940 m
o Volcanoes: Amiata Mountain: 1738m, Castello Mountain: 445m (On Capraia Mountain)
* Deserts: Acconaca Desert: 150km²
* Principal Rivers: Arno: 241km, Ombrone: 161 km, Serchio: 111 km
* Principal Lakes: Bilancino Lake (man-made): 5.0 km², Chiusi Lake: 3.9 km², San Casciano Lake: about 2.0 km², Montepulciano Lake: 1.9 km²
o Lagoons and coastal lakes: Orbetello Lagoon: 26.2 km², Diaccia Botrona Marsh: 12.78 km², Massaciuccoli Lake: 6.9 km², Burano Lake: 1.4 km²
o Marshes: Fucecchio Marsh: about 18 km²
o Small wetlands: Traversari di Camaldoli Lake, Meraleto, Asqua, La Lama, Pozza del Cervo, Fonte del Porcareccio, Prato al Fiume
* Coasts: 633km in total (397km continental and 230km island)
o Seas: Ligurian Sea, Piombino Channel, Corsica Channel, Tyrrhenian Sea
o Principal Islands: Elba Island: 223.5 km ², Giglio Island 21.2 km ², Capraia Island: 19.3 km ², Montecristo Island: 10.4 km ², Pianosa Island: 10.3 km ².

Taken from Wikipedia