Maremma Natural Park is located in Southern Tuscany and is part of the Province of Grosseto (Provincia di Grosseto); it includes a strip of coast of about nine thousand and eight hundred hectares which spreads from the town of Principina a Mare, to the north, up to Talamone promontory, to the south. The coastal line has been subjected to many changes, not only during the geological periods but also in recent times: this explains why it has moved forward to the south of Marina di Alberese, and why it has considerably moved back on both sides of the mouth of the River Ombrone (Fiume Ombrone). From a naturalistic point of view, the whole group characterised by the Uccellina Mountains (Monti dell’ Uccellina), the pine-wood of Marina di Alberese, the mouth of the River Ombrone and Trappola marshes (paludi), represents a precious mosaic of ecosystems on which man has intervened in different ways and moments: in doing so he has contributed to further changes of the landscape, without degrading or impoverishing it.

The main part of the Park is characterised by the Uccellina Mountains, a chain of hills parallel to the coast and covered by the thick Mediterranean maquis, which ends with the Lecci Hill (Poggio Lecci). The northern area of the Park is flat and characterised by flood-lands which were formed by the sediments transported by the river Ombrone, near whose mouth one can see the typical palustrine environments denominated Chiari della Trappola. These are humid areas, whose origins could have been determined by the progressive moving forward of the beach which would have then included old small lakes near the coast, or they could be remains of canals created by the stream back or even wreckage of a very old deltaic mouth. The coast, which has developed for about twenty kilometres, is a succession of sandy shores which stretch from the Ombrone mouth to Cala di Forno, where the Uccellina mountains create cliffs which continue up to Talamone promontory. As for the covering of the soil and the vegetation, the whole territory of the park includes completely different environments, such as fields used for pasture, the Mediterranean maquis, rocky areas, pine-woods, marshes and sandy dunes. As for the climate, in the area of the Park it is possible to experience continental, Mediterranean and subdesertic situations which explain why there is such a variety of species of vegetation.