Prototype Stonehenge Structure at Bulford

Reconstruction of summer solstice celebrations as they might have appeared at Bulford 5000 years ago

 © Wessex Archaeology

Factual Archaeological Report – June 2026

Compiled from Wessex Archaeology announcements and contemporary reporting.

Executive Summary

A Neolithic wooden structure consisting of two large post pits aligned with the solstices was excavated at Bulford, Wiltshire, approximately 5 km (3 miles) from Stonehenge. Radiocarbon dated to around 3000 BC, it is contemporary with the earliest phase of activity at Stonehenge (earthwork construction) but predates the erection of the large sarsen stones by roughly 500 years. The structure was far simpler than later Stonehenge phases and likely served as a basic solar marker or observation point for seasonal/ritual gatherings.

Discovery and Excavation Context

The site was investigated by Wessex Archaeology, led by archaeologist Phil Harding, as part of pre-development archaeological work ahead of new Ministry of Defence housing on Salisbury Plain (Army Basing Programme). Initial evaluation trenching took place around a decade earlier; detailed post-excavation analysis, including alignment studies, has been completed recently.

The find lies outside the Stonehenge World Heritage Site but within the broader Neolithic ritual landscape of Salisbury Plain. The same project area also yielded Late Neolithic pits with special deposits, segmented ring ditches (possible hengiform origins later modified into barrows), an Anglo-Saxon cemetery, and modern military features. The solstice-aligned posts form the focus of recent public announcements.

Description of the Structure

The monument comprised:

• Two large post pits, each approximately 0.5–1 m wide and ~1 m deep, positioned about 120 m apart.
• The pits originally held wooden posts estimated at 2–4 m in height (the timber has long since decayed).
• Alignment confirmed by archaeoastronomer Dr Fabio Silva to match summer solstice sunrise and winter solstice sunset as they appeared around 2950 BC.
• A smaller pit aligned with the two main posts contained a rare disc-shaped (discoidal) flint knife, possibly placed deliberately and symbolically linked to the sun.

The structure was a minimal “gunsight” style marker rather than a complex monument. It would have allowed precise observation of the solstices, consistent with early farming communities’ need to track seasonal cycles.

Artefacts and Ritual Evidence

Dozens of smaller pits surrounded the main posts and contained deliberately deposited items (not domestic refuse). Key finds include:

• Grooved Ware pottery in the Woodlands style (distinct from Durrington Walls style found nearby).
• Finely worked flint tools, notably a rare discoidal flint knife with high craftsmanship.
• Animal bones (cattle, pig, red and roe deer, aurochs), antler digging tools.
• Chalk objects: a small spherical “ball” and a large concave “bowl”, both showing carving marks.
• Evidence of careful, sequential refilling of pits suggests ritual or symbolic deposition rather than waste disposal.

Dating and Chronological Context

Radiocarbon dating of organic material (bone, antler) from associated pits places the main activity at approximately 3000–2900 BC. This aligns with Stonehenge Phase 1 (construction of the earthwork enclosure and ditch) but is roughly 500 years earlier than the placement of the large sarsen stones.

Feature / Phase	Approximate Date	Relation to Stonehenge
Bulford post pits & associated activity	~3000–2900 BC	Contemporary with Stonehenge Phase 1 (earthworks)
Stonehenge sarsen stones & trilithons	~2500 BC	Approximately 500 years later
Local ring ditches (Bulford)	Late Neolithic origins; Early Bronze Age modification	Part of the wider evolving ritual landscape

Interpretation

Phil Harding described the discovery as one of the greatest finds of his career, noting that even two post pits reveal much about the thinking, behaviour, and cosmology of people 5,000 years ago. Matt Leivers (Wessex Archaeology) highlighted the long-term continuity of marking significant celestial events in the landscape, describing it as evidence of “the religion of the stone age made manifest in the ground.”

The structure indicates early and accurate interest in solar alignments, almost certainly linked to seasonal concerns of early farming communities. Winter solstice marking may have been particularly important as a ritual response to the “dying” of the light and the hoped-for return of spring. It is plausible (though not proven) that some of the people using the Bulford site were involved in the earliest construction phases at Stonehenge itself.

The find does not overturn existing models of Stonehenge’s development but adds important detail to the pre-stone phases and demonstrates that solstice awareness in the region began earlier and in simpler forms than the iconic monument we see today.

Broader Implications

This discovery reinforces the picture of a rich, evolving Neolithic ritual landscape across Salisbury Plain, with multiple foci of activity. It underscores the value of systematic developer-funded archaeology in revealing sites that would otherwise remain unknown. The preservation of the nearby ring ditches as a Scheduled Ancient Monument is welcome.

Further detailed publication of the full post-excavation analysis by Wessex Archaeology is expected and will provide additional stratigraphic, artefactual, and environmental data.

Further Reading & References

Primary news reports (June 2026)

• The Guardian – “Solstice-aligned 5,000-year-old monument ‘once in a lifetime find’, say archaeologists” (detailed quotes from Phil Harding and Matt Leivers).
• BBC News – “Simpler, older version of Stonehenge found three miles from famous site” (excellent explanation of the alignment work by Dr Fabio Silva).
• Associated Press – Straightforward factual report on the discovery.

Official project sources

• Wessex Archaeology – Discovery led by Phil Harding reveals 5,000-year-old ‘prototype’ for Stonehenge solar alignment.
• Wessex Archaeology – Bulford project page (background on the wider excavations, Neolithic pits, ring ditches, and earlier phases of the same Army Basing Programme work).
• Wessex Archaeology – Army Basing Programme overview (context for the Larkhill and Bulford discoveries).

Additional context

• Phil Harding has worked extensively on the Stonehenge landscape and previous Bulford excavations (2015–2017 phases). Full post-excavation reports from the current work are expected in Wessex Archaeology’s grey literature series and will eventually be available via the Archaeological Data Service (ADS).
• For broader Neolithic landscape studies around Stonehenge and the River Avon, see earlier publications arising from the same Army Basing Programme (e.g. work at Larkhill).