After leaving Mandas, the train heads northwards on the Public Transport Line towards Isili, leaving off the branch that goes to east as far as the sea at Arbatax.
Rising slowly on the basaltic tableland of Serri, it arrives at the station of the village, a little far from it and from the famous archaeological area of Santa Vittoria.
This first part of the trip takes place among the hills of Sarcidano region, changeable in their aspect with the changing seasons. The next station is in the south of Isili, the village is crossed by the train in all its length. After running along the nuragical area of Is Paras, the train runs down into the Rio Mannu valley where in 1991 was created the Is Barroccus reservoir, in the middle of which, isolated on a rocky spur, you can see the small church of Saint Sebastian.
Here is the station of Sarcidano that used to be very important, as from here there was another railway that branched off to Ales and Villamar. It was dismantled in 1956 but long tracts of it can still be runned across by bike. The vegetation increases and the train rises amidst green Mediterranean maquis. Now there is the station of Nurallao situated in dominating position over the village.
The train proceeds across the mountain side overlooking the valley and the flat profile of Giara di Gesturi at west. The stops are Cignoni e Su Lau before the nice station of Laconi, after having crossed the park of the village. With a number of turns the railway runs along the abrupt edge of the tableland and is enriched by important railway works, such as the exceptional Gennesitzu viaduct formed by three metallic trusses.
After the stops of Funtanamela and Ortuabis, once used by the workers of the near caves and mines (such as Funtana Raminosa), the train proceeds towards the Barbagia di Belvì and reaches the stop of the imposing Nuraghe Nolza; then arrives to the station of Meana Sardo that appears at a short distance on the west. The view opens onto an amphitheatre of mountains with beautiful panoramas to the west as far as the sea at Oristano.
The next stop is that of Castiau and before reaching the pretty station shared by Belvì and Aritzo, the train crosses many viaducts, such as Paralà (80 m) in bend and on two orders of arches, and tunnels, such as S'Arcu, the longest of the line (999 m).
The red small station of Belvì is one of the most appreciate destinations of trips: it is situated under the village and is dominated by the characteristic profile of Monte Texile.
The train proceeds on its route through the valley of Rio Uatzu (a tributary of the Tirso, the longest river in Sardinia); in the background facing us and above there is the village of Tonara, a few kilometres from the next station shared with Desulo which is hidden from here on the other slope of the mountain.
With serpentine windings and other important engineering works, such as the majestic Sammuccu, in bend and on two orders of arches, the line rises from here to cross over the buttress that leads into Mandrolisai region to the basin of Sorgono, the most important centre of the area, in whose station the trip ends.