Proofs of Long-Distance Relations between Central Europe and Inland Iberian Peninsula during Neolithic and Bronze Age. Evidences from the Material Culture of the Site of El Portalón (Sierra de Atapuerca, Burgos, Spain)

El Portalon of Cueva Mayor is one of the present-day entrances to the Cueva Mayor-Cueva del Silo karst system located in the Sierra de Atapuerca (Burgos, Spain). It is an important archaeological site with extended Holocene occupation which has been subjected to a number of excavations since the nineteen seventies. From its significant collection of bone and antler industry, for this work, we have chosen artefacts indicating local production and others evidencing contact between this part of the Iberian Peninsula and other areas of the Mediterranean Basin. Wishing to emphasise this symbiotic relationship, we have likewise presented a special collection of Neolithic Boquique pottery. The data confirm that, far from being occasional, the relationship of the groups living in the area around the Atapuerca Mountains continues unbroken for several cultural episodes.