The Val di Cecina extends along the course of the Cecina river in the southern part of the province of Pisa and goes for a short stretch into the central portion of the province of Livorno near the mouth and the final stretch of the watercourse. The territory is mainly hilly throughout the hinterland and flat only near the mouth. From a landscape point of view, the steep gullies, known as Balze di Volterra, which are located near the town of the same name, are very suggestive. The area of the Val di Cecina that extends along the first hilly offshoots that slope down towards the Livorno Maremma and the central part of the Etruscan Coast is also called the Pisan Maremma and involves the municipalities of Castellina Marittima, Riparbella, Montescudaio, Guardistallo, Casale Marittimo and Monteverdi Marittimo.