These are grandiose natural sites on a 1000 km2 plateau with altitudes of 600 to 900 m, conditioned by the Mediterranean and mountain climate.
It is the world of limestone, cut by deep valleys and canyons, with reliefs denatured by the erosion of the rain. This dissolution of the stone over time has created caves, sinkholes (natural wells), underground rivers, ruiniform rocks, but also sinkholes, real basins of good cultivable land or containing water (lavogne) serving as a watering hole for the herds. .
It is a territory of splendid solitude, unique in France, for the happiness of the eyes; paradise for hikers, become a Mecca for environmentalists.
From prehistoric times, man has left his traces there. Despite an often difficult climate, different ethnic groups have settled there, suffering over time the inevitable invasions, warlike or religious destruction. Roman roads, menhirs, dolmens, hospitable cities and Templars bear witness to this rich past.