The Sieve is a river in

Italy Italy ( it, Italia ), officially the Italian Republic, ) or the Republic of Italy, is a country in Southern Europe. It is located in the middle of the Mediterranean Sea, and its territory largely coincides with the homonymous geographical re ...

. It is a tributary of the

Arno The Arno is a river in the Tuscany region of Italy. It is the most important river of central Italy after the Tiber. Source and route The river originates on Monte Falterona in the Casentino area of the Apennines, and initially takes a s ...

, into which it flows at

Pontassieve Pontassieve is a ''comune'' (municipality) in the Metropolitan City of Florence in the Italian region Tuscany, located about east of Florence, nearby Fiesole, at the confluence of the Arno and Sieve rivers. History The first rulers of the are ...

after a course of 62 km. The Sieve rises in the Tuscan-Emilian

Apennines The Apennines or Apennine Mountains (; grc-gre, links=no, Ἀπέννινα ὄρη or Ἀπέννινον ὄρος; la, Appenninus or – a singular with plural meaning;''Apenninus'' (Greek or ) has the form of an adjective, which wou ...

, near the Futa Pass, at 930 m of elevation. The territory in which it flows is known in Italian as Valdisieve. In Italian language, the name "Sieve" is feminine, and is therefore referred to as ''La Sieve''.

Notes

Rivers of Tuscany Rivers of the Province of Florence Rivers of Italy {{Italy-river-stub