From Rifugio Fratelli Longo (2026 m), the path leads directly to the bottom of Mount Sasso valley. Go downhill near the creek to about height 1800 m. The path now turns left (eastward) and enters the Brembo River Valley. Going along the hillside in a sparse forest and heading upstream in the valley, you reach quickly Rifugio Armentarga (private Hut 1776 m).
Il Club Alpino Italiano (C.A.I.) [...] ha per iscopo l'alpinismo in ogni sua manifestazione, la conoscenza e lo studio delle montagne, specialmente di quelle italiane, e la difesa del loro ambiente naturale.Statuto del Club Alpino Italiano, Articolo 1
Alta Valle Brembana
The path starts at the crossroad with 213 path (Orobie Trail) at 1752 m near (to east) the creek descending from the “dei Frati” Valley. It rises in the woods becoming more and more sparse to the dam at 1939 m. Follow the shore of the lake and then climb the orographic right slope of the valley.
From Zorzone (1019 m -hamlet of Oltre il Colle) follow the mule track leading to Valvedra Valley, heading eastward along the hillside. The path climbs gently to Pian Bracca hamlet (1111 m – if you like, reach by car this hamlet from Zorzone). The path goes on, staying near the bottom of the valley, to Pessel hut (1209 m) then reaches a pasture area and Casera di Vedro (dairy hut) (1672m).