From the village of Fucine in the direction of Ossana, after the bridge over the torrent Vermigliana and just after the hill up to the castle, on the right there is a dirt road which climbs up past some new houses in the woods, in the direction of Passo Tonale. Bypassing a large area used by the forestry commission and adjacent to the very noisy torrent Vermigliana, the road becomes steeper and more difficult and leads to some fields and the locality known as 'Poia', situated on the southern side of Val Vermiglio. The trail with its numerous rises and falls, follows the valley as far as 'Volpaia' (agritur) which can be found on a vast plain in Stavel, in the sight of the bold peak of the Presanella (3.556 m with its vertiginous frozen face). From here continue on a dirt road in the direction of Velon. After the bridge over the torrent Vermigliana, climb, on the left in the direction of Maso Cadin, close to the ruins of the old miltary base from the 1914-1918 war.
Bypassing the barns, continue right on a small road until crossing the dirt road which goes up to Forte Tonale. Cycle downhill for 100 m and after a short ride, on the left you will arrive in the vicinity of the baita di Velon, after which the road rises gradually in the direction of Passo Tonale, firstly crossing the torrent and then through a clearing which reaches Malga Pecè. During the First World War this malga was the seat of the Austrian-Hungarian second in command. The oldest surrounding trees still bare the shrapnel from the Italian granades. After the malga, the road, frequently crossed by small streams, rises in the middle of dense woodland. After some sharp bends the woods thin out allowing a view of the valley, and after bypassing some steep stretches you arrive in the vicinity of the state road SS42.
Just before the road turn left and cycle uphill in the direction of Cantiere Presena and after 1 km, on the right following a long path ('Sentiero della Pace') and the slopes you will arrive at Passo Tonale (a vist to the Ossaria is recommended, built in 1924 it houses the remains of 831 soldiers killed in battle around Tonale; this is the border between Lombardy and Trentino, and was once the border between Italy and Austria). Follow the state road for a few kilometres towards Ponte di Legno until reaching a very sharp bend with a 180° angle (1.463 m). At this point you will see a dirt road going off signposted Pezzo-Passo Gavia, follow this road bypassing some small vallies and some characteristic buildings, close to which, watch out for a diversion and a sign reading 'Case di Viso'.
The road now becames steeper, with un uneven and stoney surface, and gradually enters the valley of the same name, situated within the Stelvio Natural Park, and reaching the lovely village of Case di Viso (1.800 m), with its stone built houses, situated in the hollow basin of the valley (here there is a bar and an agritur). The old military road, built during the First World War begins here, some parts of which are quite steep, the road then zigzags on a slope in the direction of Rifugio Bozzi. After the slope and going towards the rifugio the road becomes disconnected and stoney and some parts make it difficult to balance. The road then reaches Rifugio Bozzi (2.461 m) where a rest is advised with a vist to the trenches and the small museum dedicated to the 'White War'. Another 100 m of very steep road to cycle (SAT 111) where it twill be necessary push your bike and you arrive at Forcellina del Montozzo, which at 2.613 m offers a breathtaking view of the Adamello Presanella mountains and the glaciers of San Matteo. This natural environment, with its red coloured rocks, (this being dueto the iron found here) and the remains of the trenches provide an ideal background for a photo to keep as a memento. Due to recent works carried out on the fortifications of the First World War it is now possible to participate in trekking in the area. The gentle descent towards the Val di Pejo on the SAT 111 leads to Val Montozzo. There are some unexpected fast and flowing stretches especially in the vicinity of the numerous brooks and rivulets which run down the slopes, these become very stoney and dificult, putting the cyclist’s arms and the sospention of the bike to the test. At the end of Val Montozzo the path passes some slippery rocks (these have been smoothed by the movement of the glacier). These become even steeper testing the technical knowhow and the courage even of the most expert bikers.
A beautiful view of the emerald green Pian Palù lake is the only distraction allowed, this is due to the steep ravines, the very uneven road and the gradient and the cyclist should pay attention at all times. After numerous sharp bends the road reaches a junction, take the path on the left of the lake. Follow the road adjacent to it to Malga Celentino (1.841 m) which is situated just above the lake Pian Palù. A little further on from the malga onthe right is the path SAT 110, which has got a lot of technical stretches, and descends until reaching Fontanino di Pejo (1.681 m) where you can taste the matural mineral water coming out of the spring. It is very mportant to repect the walkers on the way down and to have full control of your mountain bike cycling with care and attention. From this point it is downhill on a tarmacked road to Pejo Fonti and in the direction of Cogolo. Close to the penultimate sharp bend there is a dirt road on the right which takes you through the woods and down to the cycle path to the village of Fucine.