It is a branch of the Val Brembana, known for the Orrido della Val Taleggio (a deep gorge of about 3km) and the legendary stracchino. An excellent base for excursions is the Gherardi Refuge.
Above Introbio and Primaluna, the Val Biandino is entirely crossed by the Troggia torrent and extends between 1,500 and 1,900 metres above sea level. Going up the valley is not …