The megalithic road appears as a paved avenue, bordered by a row of majestic beech trees and flanked by mighty stone walls. The north wall is made up of boulders that are now almost completely demolished, while the wall towards the valley is formed by a succession of triliths buffered with smaller stones to form a continuous wall. The path ends at a circle of side by side stones, at the center of which there is a boulder oriented towards Mount Greppino.
The path is characterized by many peculiarities that suggest Celtic culture and that presuppose the use of the path for ritual and religious purposes: for example, the orientation of the path, which reproduces the path of the sun on the day of the summer solstice and the use of triliths.
Downstream of the "Megalithic Road" there is a beech forest; the growth of beech at relatively low altitudes, where mixed forest prevails, represents an unusual phenomenon, probably favored by man.
Going back along the mule track, you can instead make a short digression towards Monte Greppino. The path, developing in an open environment, allows you to admire a splendid panorama, and to observe some characteristic elements of the landscape.
Along the way, outcrops of serpentinites, serpentinoscists and schistose prasinites are clearly visible.
Monte Greppino is a bare and rocky relief, known since ancient times for its characteristic of attracting lightning.The mountain, because of this property, was considered sacred by the ancient inhabitants of the area.