Arno River

The Arno River is a major waterway in Italy that flows through Tuscany, including the city of Florence. It stretches about 150 miles (241 kilometers), starting in the Apennine Mountains and emptying into the Ligurian Sea. Historically, the Arno has supported trade, agriculture, and settlement development in the region. Its course has shaped the landscape and cultural history of Tuscany, with bridges, towns, and floodplains along its banks. The river is also known for occasional flooding, which has influenced urban planning and architecture in cities like Florence.