PONTASSIEVE, municipality in the Metropolitan city of Florence in Tuscany, about 9 miles (14kms) south east of it, at the confluence of the Arno and Sieve rivers (the Sieve rises in the Tuscan-Emilian Apennines and is a tributary of the Arno). It lies on the edge of the Chianti Rufina DOCG zone in Tuscany. Several merchant wineries have their HQs here, including Frescobaldi, Melini and Ruffino, benefitting from road links that connect the Valdarno with Florence. Historically, Pontassieve has acted as a place of exchange between the city of Florence and the Mugello valley (north of Florence), Valdisieve (the Sieve river valley) and Valdarno (the Arno river valley) areas.