The cave of Preletang is the witness of human and animal occupations dating back several tens of thousands of years. Indeed, it has been the den of cave bears, species now disappeared, as evidenced by the rock made smooth by their repeated friction against the walls of the cave ("bear polis"). And the collapse of part of the porch sealed the traces of the Neanderthals who had stayed there 46,000 years ago.More than 300 flint tools were discovered on the site. They are made up of scrapers, spearheads, and waist chips. Most of the tools were not made locally but brought by the Neanderthals who were sheltering under the porch of the cave during hunting expeditions. The remains of wildlife brought to light consist of stag, deer, wild boar, marmot and ibex.Thus, thanks to this exceptional site, it is known that Neanderthals traveled the plateau of Vercors before the last glaciation. These men, our distant cousins, knew perfectly where to shelter, hunt and collect flint. It will be necessary to wait until the end of the last ice age (the Würm) so that the man, this time modern, ventures again on the massif.