B04 - Castiglione - Erbalunga
At the beginning of Castiglione, at the crossroads along the Strà Granda (B00), the path begins that goes from Drocala to Alpe Prer and then to Alpe Aloro and ends on the Colma ridge in Erbalunga.

B04 - Castiglione - Erbalunga