Valdichiana stretched between the provinces of Arezzo and Siena. The towns in Aretine Valdichiana are Castiglion Fiorentino, Cortona, Foiano della Chiana, Monte San Savino and Civitella in Val di Chiana.
The towns of Montevarchi, San Giovanni Valdarno and Terranuova Bracciolini form that part of Valdarno, or rather of Upper Valdarno, that stretches in the province of Arezzo. The rest of Upper Valdarno is in the province of Florence.
Last but not least, Capolona, Subbiano, Castel Focognano, Bibbiena, Poppi, Pratovecchio and Stia form Casentino, the region where the Arno River rises.