The progression from the access stairway to the upper gallery evokes the collection of the first raw materials for stone tools, thus providing an introduction to the paleoethnography gallery on the second floor.
The decision was made to place blocks of raw materials (flint, round stones, rock plates) on display in order to give the visitor a precise idea of the appearance of the raw materials discovered in nature. Each model is partially embedded in the lateral wall and can be touched by visitors.
