Overview
- A paper published on Thursday, June 4, 2026, in the Journal of Quaternary Science combines high‑precision mineral fingerprinting and ice‑flow modelling to test how the six‑tonne Altar Stone moved to Stonehenge.
- Geochemical analysis confirms the Altar Stone’s provenance in the Orcadian Basin of northeast Scotland, overturning earlier ideas of a Welsh source.
- Glacial reconstructions show Pleistocene ice could plausibly have carried stones from that region south to Dogger Bank but produced no viable pathway into southern England.
- Because glaciers cannot account for the final leg, researchers say Mesolithic or Neolithic people almost certainly recovered and moved the block in staged steps using overland, river and coastal routes.
- Key uncertainties remain: the exact Scottish outcrop has not been pinpointed, Doggerland was submerged millennia before Stonehenge was built, and authors plan targeted sampling and route work to refine when and how people handled the stone.