The Jenga stream starts on the Taburno and it is the result of the junction of the Cauto and Reviola streams

One flows westward and the other one eastward of the rock-face where we can see the old town of Tocco Caudio. During its course, it touches the areas of other districts of the Vitulanese valley, until joining the Jerino, close to a fraction of Foglianise. It than keeps eastward for another five kilometers until the junction in the Calore river in the areas of Scafa and Benevento.

The Jerino stream starts close to the mount Mauro which is part of the massif of Taburno Caòposauro, and it flows in the Vitulanese valley until the junction in the Jenga.