In the Three Lakes region, dozens of very well-preserved lakeside dwellings precisely dated by dendrochronology provide a very good knowledge of the evolution of the material culture. They make it also possible to reconstruct the variations of water levels through the absolue altitude of organic layers. Water level variations are linked to climate and thus to environmental resources. The dendrochronological dating of the woods makes it possible to date the occupations, but also to reconstruct the variations in felling frequency and to point out the periods of forest recovery. The felling density is linked to demography and it is not surprising that the curve of relative variation in water level converge with that of relative variation of fellings. In between these lakeside occupations, there are periods of very variable duration with no recognised felling. Since the development of preventive archaeology, extremely discrete land hamlets are discovered in the hinterland. They mainly deliver radiocarbon-dated post holes and hollow structures with sparse furniture. The long periods without lakeside dwellings are thus progressively filled by habitats that are often poorly understood, but very present. Early Neolithic, Campaniform and Early Bronze Age habitat, unknown on the lakeshore, is thus found in the hinterland. But what happens during the shorter gaps in the felling: is this simply a state of research, alternative housing between two bays, or a real abandonment of the shores in favour of the hinterland? In addition to these alternations, are there phases of contemporaneous terrestrial and palafittic villages? The prevailing pattern was that of a strictly palafittic habitat from about 3850 BC to 2450 BC, i.e. during the Cortaillod culture of the Middle Neolithic and throughout the Final Neolithic. Indeed, no terrestrial habitat was known in the riparian hinterland. End 2017, the Final Neolithic station at Corcelettes Les Pins and a succession of Neolithic and Bronze Age habitats at Grandson-Borné Nau, a few hundred metres from the bay of Corcelettes, were discover. A phasing of the occupations on the territory between Les Pins and Borné Nau allows to refine the scheme, in relation with the environmental studies.