New Study Suggests Ancient Humans Transported Stonehenge's Altar Stone 700 Kilometers Across Britain

A new study led by Curtin University researchers has strengthened the evidence that the Altar Stone—a six-ton sandstone megalith at the center of Stonehenge—was transported by ancient humans rather than natural forces. Using mineral grain dating techniques and computer models of ancient ice sheets, scientists investigated whether glaciers could have carried the stone from northeast Scotland, approximately 700 kilometers away, to Salisbury Plain. The modeling revealed that while glaciers may have transported rocks as far as Dogger Bank in the North Sea during the last Ice Age, no realistic glacial pathway could have delivered the stone directly to southern England. This means the stone would have required human transport for hundreds of kilometers of its journey. The research suggests the movement was deliberate and carefully planned, likely occurring in stages using overland hauling combined with river or coastal transport where feasible. The findings highlight the organizational capabilities and landscape knowledge of Neolithic communities, demonstrating a level of coordination that may have been underestimated by previous research.