Massive Prehistoric Pit Circle Discovered Near Stonehenge
Archaeologists have confirmed the existence of a massive ring of pits near Stonehenge, potentially making it Britain’s largest prehistoric structure. The discovery reveals sophisticated planning capabilities of Neolithic people 4,500 years ago.
Key Findings
- Over 20 pits forming a mile-wide circle around Durrington Walls and Woodhenge
- Some pits measure 10 meters deep and 5 meters wide
- Multiple scientific techniques confirm human construction
- Could represent earliest evidence of counting in Neolithic Britain
The Monumental Discovery
The ring of more than 20 pits extends in an arc more than a mile across, with some reaching 10 meters deep and five meters wide. At the center lie the ancient sites of Durrington Walls and Woodhenge, located 1.8 miles northeast of Stonehenge, where ritual feasts were held by henge builders.
First discovered in 2020, the pit circle further cements the Salisbury Plain’s reputation as a uniquely important religious site for Britain’s Neolithic people. The area contains interconnected ceremonial structures, stone circles, and cemeteries from the Stone Age.
Scientific Verification
Researchers used multiple techniques to prove the pits were human-made rather than natural formations. Professor Vincent Gaffney from the University of Bradford described the structure as a ‘cosmological statement.’
The research team employed electrical resistance tomography, radar, magnetic imaging, and sediment core analysis. They used optically stimulated luminescence to determine when soils were last exposed to sunlight and extracted plant and animal DNA directly from the dirt.
‘This in itself did not prove these features to be man-made,’ Professor Gaffney explained. ‘So sediment cores were extracted and an array of techniques, including novel geochemistry, were used to characterise the nature of the soils.’
Historical Significance
The discovery reveals that Neolithic society was capable of complex planning and mobilizing large numbers of people for religious purposes. The near-perfect circular arrangement suggests the pits were laid out by pacing, indicating early numerical counting capabilities.
‘It confirms that this structure – probably the largest prehistoric monument in Britain at least – is a purposefully constructed monument in a landscape which is itself exceptional,’ Professor Gaffney stated.
However, researchers acknowledge we will ‘probably not’ ever know exactly why these massive pits were constructed.
Stonehenge Construction Timeline
The current Stonehenge monument represents the final stage of a four-part building project completed about 3,500 years ago.
- First stage (3100 BC): Earthwork comprising ditch, bank and Aubrey holes
- Second stage (2150 BC): Transportation of 82 bluestones from Wales
- Third stage (2000 BC): Arrival of larger sarsen stones from Marlborough Downs
- Final stage (1500 BC): Rearrangement of bluestones into current formation
The discovery of the pit circle adds another layer of complexity to our understanding of Britain’s ancient ceremonial landscape and Neolithic engineering capabilities .










