The State forest of Usinavà falls within the territory of the municipality of Torpè and has a surface area of around 1146 hectares. The area is characterised by fascinating naturalistic scenery that is outlined by rugged, wild rocks that phenomena of erosion have modelled giving them forms and outlines reminiscent of the animal world. It is home to nature of extraordinary beauty dominated by tormented, stony granite undulations, with uncultivated land that confer a silent, lonely atmosphere to the area, while it’s smatterings of Mediterranean brush, with differing height and vegetation density, revive some zones with its verdant colours. Some stretches of the forest are dominated by granites among which we find the “serre”, a succession of conic crests similar to the teeth of a saw. The majority of the holm oak woods are found in the area of Badd'e Cabras and of Sa Figu, where one can also see strawberry trees, lentisk, phyllirea, red juniper and cork oaks in amongst them. The area has concave rocks, with small and large hollow openings in the large rock or in the smaller, disconnected rocks, known as "tafoni", created by the erosion of the wind. The slopes of the mountains and the valleys are verdant with evergreen woods of holm oaks and cork oaks, among which it is not unusual to spot ruts made by torrential streams that form some small falls during the rains. Its uneven areas, rocky zones and pleasant groves make this forest a heterogeneous naturalistic environment that is home to many animal species. A colony of mouflon live in an enclosure equipped with watering and observation points, visitable by school groups and tourists with an interested in wild animals. The area is branded as a permanent wildlife protection oasis: it is, in fact, a shelter and home for a variety of game among which the Sardinian partridge, the boar, the hare, the wild boar, the mallard, the purple swamphen and many other animals.