They are formations in the shape of pinnacles and towers made up of gravel held together by clay and silt, formed thanks to the erosion of atmospheric agents.
The last stretch to reach the cave is very steep and insidious, I absolutely recommend suitable shoes and don't disdain poles to keep your balance. Once reached, it pays off …
Stretch of gravel dirt road that follows the course of the Cesolone torrent, which from the Letegge and d'Aria mountains flows into the Chienti river near Tolentino. Along the way …
It is useful to know that the Gola di S. Eustachio is a SCI (Site of Community Importance), and is also located within the SPA (Special Protection Area) Gola di Sant'Eustacchio, Monte d'Aria and Monte Letegge.