 
 The longest river of Southern Italy with its 175 kilometres rises in Molise, at Rocchetta a Volturno and runs for a long way in the Apennine region, of which, after the Ponte 25 archi, marks the border with Campania.
 
 In the north-east of Campania Felix, separated from the Campania Apennines by the valley of the Medio Volturno, the massif of the Trebulani Mountains rises, also known as the Colli Caprensi.
 
 It is one of the favourite stopping points in the long spring migration from Africa to Central Eastern Europe on the Tyrrhenian route.
 
 The peak of Mount Miletto is reflecting in its placid waters where they come from.
 
 It rises from Lake Matese and in the first part of its way, it is characterised by cascades and differences in heights.
 
 It rises at the foot of Mounts Trebulani, at 86 meters above sea level, in the territory of Calvi Risorta.
With a surface of over 1500 square kilometers, the limestone massif of Matese stretches between Molise and Campania and falls within the territory of four provinces.