An easy and pleasant route starts from the Casino Sierro in the municipality of S. Pietro al Tanagro and ends at the Corcomona di Corleto Monforte Refuge. The massif of the alburni mountains is a very extensive plateau where there are many high ground clearings with large and green pastures alternating with ancient forests composed of beech and cerrete. The ancient forests see the presence of large centuries-old trees with their natural dynamics intact with all stages of growth including the presence of dead specimens on the ground and fallen branches or leaves among which the flora and fauna typical of this habitat thrive . Another fundamental characteristic of ancient forests is an absent or negligible anthropogenic disturbance (caused by man).