Massive Stonehenge megalith likely hauled over 400 miles by prehistoric people, not glaciers

Key Points:

• New research indicates that the six-ton Altar Stone at Stonehenge was likely transported about 700 kilometers (430 miles) from northern Scotland by prehistoric people, rather than by Ice Age glaciers.
• Analysis of zircon minerals in the sandstone points to Caithness in northern Scotland as the strongest source match, with computer models showing glaciers primarily moved ice northeast, not south toward Stonehenge.
• The glacial transport theory is further challenged by timing issues, as the Dogger Bank landmass that glaciers could have used was submerged thousands of years before the stone's estimated arrival.
• Researchers propose a complex, staged transport involving overland hauling combined with river or coastal water routes, highlighting the planning, labor, and knowledge prehistoric communities invested in moving the massive stone.
• Ongoing efforts aim to pinpoint the stone's exact origin in northeast Scotland to better understand the prehistoric route and cultural significance behind the Altar Stone's selection and transport.