Someone Moved a 6-Ton Stone 460 Miles to Stonehenge. Nobody Knows How

Someone Moved a 6-Ton Stone 460 Miles to Stonehenge. Nobody Knows How. At the heart of Stonehenge, pinned under the fallen stones of the Great Trilithon, lies a slab most visitors never notice: the Altar Stone. For about a hundred years, experts believed it came from Wales. In 2024, a study in Nature showed it came from the far northeast of Scotland, at least 750 km (460 miles) away. No other stone from any monument of that age is known to have travelled so far. In this episode: how tiny mineral grains inside the stone revealed its origin, why Orkney was ruled out, why glaciers could not have done the job, and what the journey tells us about Neolithic Britain. The answer to where it came from is now known. The answer to how it got here is still missing. CHAPTERS 00:00 The stone most visitors never notice 02:07 Two kinds of stone at Stonehenge 03:05 The Welsh theory that lasted a century 04:19 Reopening the case 06:49 Reading a stone's fingerprint 08:42 A match in Scotland 09:20 Was it Orkney? 11:18 The hardest question 11:38 Could ice have moved it? 12:51 Over land or by sea 14:16 What it changes about Stonehenge SOURCES Clarke, A.J.I. et al. (2024). A Scottish provenance for the Altar Stone of Stonehenge. Nature 632, 570–575. doi:10.1038/s41586-024-07652-1 Bevins, R.E. et al. (2024). Was the Stonehenge Altar Stone from Orkney? Journal of Archaeological Science. Bevins, R.E. et al. (2023). The Stonehenge Altar Stone was probably not sourced from the Old Red Sandstone of the Anglo-Welsh Basin. Journal of Archaeological Science: Reports 51, 104215. Clarke, A.J.I. et al. (2026). From Highlands to Henge: Refining the Provenance and Transport Pathways of Stonehenge's Altar Stone. Journal of Quaternary Science. doi:10.1002/jqs.70080 Nash, D.J. et al. (2020). Origins of the sarsen megaliths at Stonehenge. Science Advances. Madgwick, R. et al. (2019). Multi-isotope analysis reveals that feasts in the Stonehenge environs and across Wessex drew people and animals from throughout Britain. Science Advances. Thomas, H.H. (1923). The source of the stones of Stonehenge. The Antiquaries Journal. ABOUT THIS VIDEO All visuals in this video are AI reconstructions created for illustration. They are not real photographs or footage of the sites, people or events described. Narration uses a synthetic voice. All facts are based on the published research listed above. #Stonehenge #Archaeology #AltarStone #AncientBritain #Neolithic #DustAndData