Pectoral: 1317Length: 100 km
Difference in altitude: 3260 m
Departure from the Alta Valtellina bike village stadium in Rasin Isolaccia;
Launch section passing through the heart of the town of Isolaccia;
Start of the climb to Pedenosso Alto – S.Antonio total 7 km (5 km on asphalt and then start of dirt road);
Once you reach the top of the hill on the white road of Decauville, turn right towards the Fraele towers;
At the Torri di Fraele at 1930 m (one of the most typical features of the Valdidentro, on the route of the ancient Via Imperiale) you enter the spectacular valley of the same name;
Passing near the Monte Scale lake, you reach the Cancano dams (two enormous artificial lakes that constitute a true work of hydroelectric engineering, nestled in an environment of particular naturalistic interest; the hydroelectric use of the Fraele valley dates back to 1928).
We skirt the first dam on the left side, cross the dividing wall and pass on the right side of the second dam, over 12 km mainly flat on a wide dirt road;
Once you reach S. Giacomo, keep right and continue along an easy path towards Val Mora near the Swiss border (we are still on the trail of the ancient Via d'Alemagna, a historic and important trade link between Valtellina and nearby northern European countries until 1487). Before crossing the border, turn and continue towards Prà Grata to return to S. Giacomo.
We skirt the S.Giacomo dam on the right side after about 3 km completely flat, in the Val Pettin area there is a deviation and the start of the climb to Alpe Trela 2200 m, 2 km on a dirt road with a compact surface;
At Alpe Trela, after a short flat stretch, continue climbing on a path for 2 km up to Passo Trela at 2300 m.
A 3.5 km singletrack descent towards Val Pila; once you reach the valley floor, continue along the Val Torta trail, with constant ups and downs, to Lake Livigno (1,800 m), a spectacular artificial lake marking the border between Italy and Switzerland.
Climb to Passo Alpisella 5 km on a dirt road with a compact surface;
At the Alpisella Pass (2,350 m), descend towards the San Giacomo dam; the first section follows a dirt road until reaching the start of the spectacular trail that passes near the source of the Adda River and leads to the bottom of the San Giacomo valley.
We skirt the S.Giacomo dam (right side) for 3 km, entirely flat, in the direction of Val Pettin, once again tackling the climb to Alpe Trela for 2 km;
Short flat stretch and then uphill again towards Lago Nero for 1.5 km on a path, to reach the Bocchette di Trelina at 2283 m;
Spectacular descent towards Val Vezzola: the first part is on a fun single-track, then continues on a dirt road to the start of the path that leads to the Foscagno Valley. After a series of technical ups and downs, the descent leads back onto the flat Decauville road.
Passing through Arnoga, we cross the main road to Livigno towards Val Viola, a valley dominated by the mountains of the Cima Piazzi and Corna di Campo group: Cima Piazzi, Cima Viola, and Cima Dosdé tower above it.
An initial 1km uphill stretch leads to Val Verva;
In the Baite Verva bassa area, on a newly built path, you proceed along 3 km of fun ups and downs;
The route becomes wider and after 1 km you pass through Val Cardonnè to then turn left and after crossing the bridge you climb for 500 m;
Smooth descent for 1 km and deviation to the right for Paluetta (1 km climb);
From Paluetta 1 km on varied terrain and you reach Alpe Boron 2057 m;
Short descent and immediately turn right to tackle a climb of about 1 km, very challenging in some places, "muro di Prei";
The route reaches the top of the hill at Prei, a particularly panoramic spot with views of all the surrounding valleys traversed in the first section of the route. A new, fun, flat trail, with a slight descent, leads to Alpe Pone.
Still on a new downhill path, you skirt the alpine ski slopes of Valdidentro until you reach the entrance to the Palancana road, a long flat stretch immersed in thick pine forests which offer extraordinary panoramic views of the Bormio area;
Breathtaking descent towards the historic natural area of the Venini military fort and the Paluaccio di Oga reserve;
Taking advantage of the fun trails built for the Oga bike park, you "fly" towards Motte, Corva, and with a passage on the winter cross-country ski trail and the Isolaccia cycle path, you've arrived!
HIGH ALTITUDE EMOTIONS!
A challenge on a high mountain route with superb views and carefully designed elevation changes to enhance the beauty and pleasure of cycling at altitude in the Stelvio National Park.
