Su Texile, or rather the Meseddu de Texile, is a Jurassic limestone heel, with vertiginous overhanging walls, located on a conical relief formed by Paleozoic schist rocks. The heel, honeycombed with karst cavities, appears strongly inclined on the slope of the Rio S'Iscara valley. Its dimensions are remarkable. The surface area is 0.8 hectares, with a diameter ranging between 50 and 70 meters. The summit has an altitude of 974 meters.
Texile is one of the witnesses of the ancient Jurassic limestone cover, spared from erosion. The block is deeply fissured, with holm oak specimens rooted in the cracks. Texile, like the other heels, hosts a predominantly evergreen calciphile flora, which contrasts with that of the surrounding valleys and mountains, where the forest is mainly formed by deciduous species. The holm oak here climbs to an unusual altitude in the Gennargentu massif. Other nearby natural features are Su Campanili di Gadoni, proposed as a natural monument, and the Su Stampu 'e su Tùrrunu cave near Seulo. In the Riu Brebegargius locality of Gadoni, Silurian fossils are found.
The morphology of Texile is also typical of other reliefs in the surrounding region, such as the Tònneri of Belvì, indicated on the cartography as Pitzu 'e Pranu (846 m), and the Tònneri of Tonara, which together represent the outposts of limestone plateaus that become wider towards the South. The landscape varies considerably depending on the altitude, exposure, and slope of the valley sides. The wooded areas extend mainly on the steeper slopes, while the rounded ridges are mainly pastureland. The original holm oak forest has been partly replaced by chestnut and hazelnut groves. In the valley bottoms, there are some imposing specimens of walnut. In the surrounding areas, there are conifer reforestation projects.
Furthermore, there are traces of settlements from the Neolithic to the Nuragic age: the Nuraghe Su Nuracciolu, the giant's tomb near the Rio Melanusé, and the domus de janas along the Rio su Frusci. In the locality of Gidilao, between Aritzo and Belvì, a hoard of Punic coins was found, while near Texile, Roman coins from the 1st and 2nd centuries AD were found, currently preserved at the Sanna Museum in Sassari. This locality, a well-known hiking destination, can be easily reached via a 1.5 km footpath that starts from the SS 295, at km 20.300, with an elevation gain of approximately 100 meters.
