 Aristotle claims that it rises from the Pyrene Mountain (which we can identify as the Pyrenees) and flows out to sea outside the Pillars of Hercules, the modern Strait of Gibraltar.No such river traverses the Iberian peninsula.According to the 4th century BC Greek geographer and explorer Pytheas, quoted by Strabo in the 1st century AD, the ancestral homeland of the Turduli was located north of Turdetania, the region where the kingdom of Tartessos was located in the Baetis River valley (the present-day Guadalquivir valley) in southern Spain.