The Val d’Orcia or Valdorcia is a region of Tuscany, central Italy, which extends from the hills south of Siena to Monte Amiata (Monte Amiata). Its gentle, cultivated hills are occasionally broken by gullies and by picturesque towns and villages such as Pienza, Radicofani and Montalcino. The Orcia river which marks the south west border of the territory of Montalcino in Siena province in the Tuscany region of Italy where it gives its name to the Col d’Orcia winery. It also gives its name to the Orcia DOC.