San Giovanni Bianco ~ Dossena ~ Holy Trinity.

This circular itinerary connects several hamlets between San Giovanni Bianco and Dossena, alternating between road and trail sections.

From the bridge over the Brembo, you climb gently towards San Pietro d'Orzio e Grumo, then with greater determination until the characteristic white church of San Rocco, where you leave the asphalt to enter the woods.

The path proceeds almost at altitude, with short uphill and downhill sections, until it reaches the road that goes from Door towards the ancient mines, crossing a scenic viewpoint over the mid-Brembana Valley. Here the slope softens: near an old reinforced concrete structure linked to mining activities, a metal barrier is crossed and the dirt road leading to the upper part of Dossena.

Patrolling the village, you continue on level ground until a path enters the pine forest and reaches a small shrine, at which point the descent begins. The route re-enters the woods and leads to the small Church of the SS. Trinity (Holy Trinity); from here, you take the abandoned mule track known as Rolling Stones. In a short while you reach St. Gallen, where a well-maintained mule track leads back towards San Giovanni Bianco, closing the loop.