Climont is a mound bearing witness to sandstone of the Triassic, a vestige resulting from effective erosion pushed onto the pedestal of Permian sandstone. This latter formation basically corresponds to the post-Hercynian peneplain characteristic of the Primary era. In the Saales col, whose flat horizons appear as a peneplain to the eye, there is similarity between the mounds of Climont, Voyemont, Houssot or the hills which continue from Ormont, all to a greater or lesser extent released by erosion. Note that the final and most recent erosion has arisen from the enclosing faults, which emerged transverse to the Alsatian rift and stretch out towards the Saint-Dié area. They have also induced the collapse of Ormont and are active today, creating the sharp relief of the sandstone massif.