The hermitage of San Leonardo al Volubrio is an ancient monastery built in the heart of the Gole dell'Infernaccio, on the Sibillini Mountains in the municipality of Montefortino, in the Province of Fermo, in the Marche region.
Today only a small church remains of the original structure, rebuilt on the pre-existing remains by the Capuchin friar Armando Lavini, better known as Father Pietro, who, starting from the 1970s, undertook the renovation work alone and with inadequate equipment.