Our 23-kilometer loop route starts at the lakes of Cancano and San Giacomo di Fraéle. They are reached by following the signs along the road from Bormio up to Livigno.

However, it is necessary to deviate to the right at the height of the built-up area of Premadio and drive along a series of tornan that lead, after 13 kilometers, to the Fraéle Pass. We continue by car and skirt the reservoirs on the left using the dirt track to the parking lot at the entrance to the Pettini valley.

Our ride begins here, going right up the Pettini valley, with Stelvio National Park signs to guide us. After about half an hour we find ourselves in the gorges of the Val Corta, which, as the name implies, we pass in a short time. Almost suddenly and with some surprise at the environment we encounter, we enter the beautiful plain of the Trela pastures. Behind the alpine hut we head right on the most challenging section of the trail, which through a single track allows us to gain the Trela Pass.

From here we face a pleasant descent along the desolate Pila valley towards Trepalle (trail mark 136). We then head right and, following the sunken Torto valley, in a short time we lose altitude towards the Livigno dam. We take, turning right again, a nice dirt road (trail marker 138) in the direction of the Capre bridge.

Near the Alpisella refuge, in a panoramic position over the Livigno reservoir, we follow the signs to the Alpisella pass, climbing for about an hour up the well-maintained military road. Once over the pass we meet the headwaters of the Adda River. After a scenic and pleasant descent here we are again on the banks of the San Giacomo and Cancano reservoirs.
We skirt them on the right for a couple of kilometers to the parking lot where we left the car.

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