New Research Sheds Light on Mysterious Origin of Stonehenge’s ‘Altar Stone’

The Altar Stone was long believed to have traveled 150 miles from Preseli Hills in Southwest Wales with the other megaliths.

The prehistoric monument Stonehenge near Amesbury in southern England on Jan. 19, 2022. Daniel Leal/AFP via Getty Images

Geologists may have solved the mystery of the origin of the Altar Stone central to the ancient monument of Stonehenge on the Salisbury Plain in Wiltshire, England.

The Altar Stone was long believed to have traveled 150 miles from Preseli Hills in Southwest Wales with the other megaliths until later work discounted that theory.