The Era is a river in Tuscany in Italy. It rises near Volterra and flows into the Arno river at Pontedera.
The Era is 54 km long, and its main tributaries are: (on the left) Cascina river, Ragone torrent, Sterza torrent, and (on the right) Capriggine torrent and Roglio torrent.
In 1966, the river flooded the town of Pontedera.
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