As the setting of the initiative communal Interreg II, townships of Reillanne and Roccasparveras promoted the project "Bolleris-Connaissance et valorisation de trois siècles de vie commune sur les deux versants des Alpes à travers les vestiges de l'administration éclairée des Bolleris"
The goal is to restore the local historic elements of the complex architectural of Roccasparveras and the underground that, to the time, joined the castle to the Stura stream, according to the compatible criterias with the intallation of origin to give back a tourist impulse to this so suggestive medieval borough.

The project worked out in 1998, founds on the supposition that the territorial basin of the Stura valley and the department of Alps of High Provence (unite administratively during three centuries under the manorial authority of the Bolleris) represents one alone and unique laboratory of values and traditions.
The purpose of the project is there to preserve and collect, for tourism purpose, the historical memory of the transalpine Bolleris lords..