This 998m peak, in the same way as in the case of Castell d'Arget, its strategic situation was very suitable for building a watchtower; it is said that this was a construction prior to the 10th century since "Rocha Graiaria" is mentioned in 954; in 1531 it was registered within the vegueria of Besalú, Between the 17th and 18th centuries this point is mentioned as the border between the terms of the Vilars and the Comú de la Vila. According to 19th century farmers, there were more vestiges than have been documented. I'm sure it communicated with that of Arget and that of the nearby Puig Falcó.
Attention! if we attack the wall directly we will find a very vertical and dangerous section, equipped with chains in the most difficult places. It is necessary to take extreme precautions. If we are not in the mood to climb, or if the weather is bad, it is recommended to use the alternative path that leaves on the left around the rock on its north side and joins on its E side, from where we easily reach the top.