The one main road that runs the length of the valley takes you up to the famous Sanctuary of the Black Madonna, which is one of the Sacred Mounts of Piedmont and Lombardy and the artistic jewel of Biella. The peaks here rise up to 2,000 m. and there are numerous pre-alpine hills which form a semi-circle around the Sanctuary. The mount Mucrone in particular offers tourists wonderful hiking paths leading to lovely Lake Mucrone.