The Sieve is a river in Italy. It is a tributary of the Arno, into which it flows at Pontassieve after a course of 62 km. The Sieve rises in the Tuscan-Emilian Apennines, near the Futa Pass, at 930 m of elevation. The territory in which it flows is known in Italian as Valdisieve.

Another major whitewater feature is a sieve, which is a narrow, empty space through which water flows between two obstructions, usually rocks. Similar to strainers, water is forced through the sieve, resulting in higher velocity flow, which forces water up and creates turbulence.

May 22, 2020 · Sieves are similar to strainers but are obstructions made by rocks or the riverbed. They are normally boulder-choked areas that allow water to pass but would block a person or boat. Generally, obstacles force water around them, often creating a pillow on their face.

Feb 23, 2016 · Located just forty minutes from the center of Florence in the hills of Fiesole, the Sieve, a tributary of the Arno, opened for fishing in 2006, with a stock of brown trout feeding on big caddis hatches. The Sieve is particularly popular from early-April to late-October and one of Italy’s best summer streams.

The Sieve is a river in Italy. It is a tributary of the Arno, into which it flows at Pontassieve after a course of 62 km. The Sieve rises in the Tuscan-Emilian Apennines, near the Futa Pass, at 930 m of elevation. Photo: LigaDue, CC BY 3.0.

Sieves occur where water is flowing through a narrow or contracted passage such as a crack in rock. Individuals and boats can wedge and get pinned in these restricted passages. Many rivers have well-known sieves that are identified in guide books and on paddling websites.

The Sieve is a river in Italy. It is a tributary of the Arno, into which it flows at Pontassieve after a course of 62 km. The Sieve rises in the Tuscan-Emilian Apennines, near the Futa Pass, at 930 m of elevation.

This fun route on the Sieve river, suitable for rafting and kayaking, crosses a picturesque hilly landscape among vineyards, olive groves and cypress trees, allowing you to reach, from the ancient mill of Vico, the city of Pontassieve.

Pontassieve spreads over the banks of the Sieve River where it meets the Arno, east of Florence. It was historically a crossroads town, first during the Florentine Republic and then in the post-war period when the railroad line was built.

Rafting Sieve river An outdoor adventure suitable for everyone awaits you just a few minutes from the beautiful city of Florence. Along the 7 km route there will be several stops to enjoy nature, dive and even a picnic by the river.