A new study uncovers stunning clues about Stonehenge’s most mysterious boulder.

New research suggests Stonehenge’s massive Altar Stone didn’t come from Wales, as long believed, but from far to the north—possibly near Scotland’s Grampian Mountains. This discovery means Neolithic Britons may have transported the six-ton slab an astonishing 465 miles before it reached Salisbury Plain. The finding overturns decades of assumptions and raises new questions about prehistoric engineering, mobility, and ritual significance. While the exact route and method remain unknown, the study reveals Stonehenge’s story is even more complex and mysterious than archaeologists once imagined.








