Val di Chiana

Val di Chiana, Italy - Aretine, Siennese and Roman Valdichiana

Val di Chiana



Città della Pieve

San Casciano dei Bagni

Chianina oxen

Val di Chiana Map

Val di Chiana Valley of the Chiana

The Chiana Valley from Cortona, Tuscany

The Val di Chiana (Valdichiana) was extensively settled by the Etruscans and Romans. Because of the low river and steam gradients, deforestation resulted in silt accumulation and the valley of the River Chiana slowly became an extensive marshy area. Malarial infestation began in Etruscan times and became seriously hazardous during the Middle Ages and Renaissance when the wetlands were as much as 140 sq km in area. Drainage was first proposed during the 14 C and by 1500 land reclamation was taking place. A man-made channel, the Canale Maestro, was dug to reverse the direction of water flow from southward into the Tiber to northward into the Arno. This work was completed in 1840. Tributary streams were also canalised so that the area is now a fertile alluvial valley. The present-day appearance of the Val di Chiana is thus the result of marsh drainage and reclamation work that was started by the Romans and carried on right through to the 20 C. Leonardo da Vinci drew a map of the area at the beginning of the 16 C, that shows the valley occupied by a large lake running north-south. The towns and villages in the hills on either side of the lake communicated by means of a ford at Valiano, a small village that still exists. There are now just two remnants of the original large lake, the Lago di Chiusi and the very small lake at Montepulciano.

The Val di Chiana extends over the territory of 22 municipalities in the provinces of Arezzo and Sienna in Tuscany, as well as of Perugia and Terni in Umbria. From the north, the valley runs southwards from Arezzo and westwards of Cortona, both of which have magnificent views over the plains of the valley floor. The Val di Chiana thus lies between between the Val d'Orcia and the Val Tiberina (Tiber valley) below Perugia, where the Upper Tiber Valley begins. To the north is the Siennese Chianti and part of the Val d'Elsa. The much hillier Val d'Orcia lies to the west of Montepulciano, across a ridge that starts with Monte Cetona in the south. As throughout the region, Sienna and Florence fought for control of the Val di Chiana on a number of occasions.

Valdichiana Valley of the Chiana

Province of Sienna, Tuscany

Canale Maestro

Canale Maestro

The valley may be divided into three zones:
the Aretine (i.e. of Arezzo) Val di Chiana, the Siennese Val di Chiana, and the Roman Val di Chiana.

Aretine Val di Chiana (Valdichiana aretina)

This is the part of the Province of Arezzo covered by the municipalities of:

Arezzo (partly)
• Castiglion Fiorentino
Civitella in Val di Chiana
• Foiano della Chiana
• Lucignano
• Marciano della Chiana
• Monte San Savino

These are municipalities that were already under the control of the Medici in 1554, the year of the Battle of Scannagallo after which the Florentines occupied the entire valley. The Aretine Val di Chiana lies at the convergence of the four historical valleys of the province of Arezzo together with the Valtiberina, the Casentino (Upper Val d'Arno) and the Valdarno itself.

Siennese Val di Chiana (Valdichiana senese)

This is the part of the Province of Sienna covered by the municipalities of:

• Chianciano Terme
• Chiusi
San Casciano dei Bagni (partly)
• Sarteano
• Sinalunga
• Torrita di Siena
• Trequanda

These are municipalities that were part of the Siennese Republic until 1554. With the exception of San Casciano dei Bagni, all of these municipalities formed part of the aretine territories of the Grand Duchy of Tuscany after 1554. With the unification of Italy in 1860, they were re-allocated to the province of Sienna.

Roman Val di Chiana (Valdichiana romana)

"Roman" Val di Chiana refers to the territory of five municipalities in Umbria. Three of these are in the province of Perugia

Castiglione del Lago
• Tuoro sul Trasimeno (partly)
Città della Pieve

and two are in the province of Terni:

• Monteleone d'Orvieto
• Fabro


Montepulciano is the largest municipality in the Siennese Val di Chiana. A long, winding street called the Corso climbs up to the main piazza at the summit of the hill. The town is encircled by fortifications and, inside, there are numerous beautiful Renaissance palazzi and churches. Montepulciano is chiefly known for its "Vino Nobile di Montepulciano" wines. The Bravìo delle Botti (barrel rolling race) takes place on the last Sunday in August. More about Montepulciano


Cetona is a well-preserved mediaeval town situated in the Val di Chiana in the extreme south-east of Tuscany, in the province of Sienna. It surrounds a hill where the rocca (fortress), containing a square tower (ca 900 AD) and an inner fortress wall, is located. Cetona became quite trendy in the 1960s and, although it is off the tourist circuit, the shops remain good and it's a pleasant place to visit. More about Cetona.

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