Structure and formation of the massif
From a geological point of view, the Giant of Provence can be defined as a big heap of limestone.
155 million years ago there was a large pit at the same location which for 60 million years filled with sediments forming by accumulation of limestone.
95 million years ago, the Ventoux, with its neighbour the Lure mountain, began to rise. The formation of the Pyrenees contributed to the uplift of the massif from this period until 30 million years ago. Then the formation of the Alps, between 30 and 2 million years before our era will eventually give it its present structure.
But its definitive silhouette is the result of 2 million years of erosion. Wind, rain and especially the alternation of glaciations and warming have shaped a bare summit, composed of broken rock falls.