The finding overturns a long-standing assumption about where the stones came from. Plumpton Rocks, a source considerably closer to the monument, had previously been identified as the most probable origin of the Arrows. By reading the microscopic mineral fingerprints locked inside the stones, the research team demonstrated that this earlier identification was wrong. The builders of the Devil’s Arrows, rather than taking the nearest convenient boulders, chose to quarry and transport their material from a far more distant and challenging location, a decision that speaks volumes about the values and beliefs of the people who undertook one of the most ambitious engineering projects of Neolithic and Early Bronze Age Britain.

The technical breakthrough at the heart of the study lies in a remarkably gentle sampling technique. Standing stones of this significance cannot simply be drilled or chipped without causing damage to monuments that have survived for four thousand years, so the team developed a low-impact method that uses adhesive tape to lift tiny mineral grains directly from the rock surface. The grains collected in this way are individual crystals of minerals such as zircon, which act as geological time capsules. When these crystals form deep within the Earth’s crust, they incorporate trace amounts of uranium, which decays to lead at precisely known rates, allowing scientists to calculate the age at which each grain crystallised.

Because the rocks at any given outcrop carry a distinctive population of crystal ages, effectively a geological fingerprint, the researchers could compare the age spectra recovered from the Devil’s Arrows with samples from candidate source areas. The match to Brimham Rocks proved decisive. The age distributions recorded in the stones aligned with the Brimham geology and excluded the alternatives, including the previously favoured Plumpton Rocks. Just as importantly, the data helped rule out natural transport mechanisms. Glaciers moving through the region during the Ice Age could in principle have carried large boulders across the landscape, and glacial erratics have long been invoked to explain the placement of many megaliths. The evidence from the mineral grains indicates that the Arrows were not glacial visitors but were intentionally selected, moved and erected by human hands.

The scale of that human effort is difficult to overstate. Each of the stones weighs in excess of 25 tonnes, and the tallest members of the row rise to around seven metres above the ground, with a substantial portion of each monolith set into the earth to keep them upright. Moving masses of this size across 18 kilometres of undulating terrain, without wheels, cranes or draught animals, would have required sledges, timber rollers, ropes, earthen ramps and, above all, extraordinary planning and coordination. Dr Anthony Clarke, lead author of the study from the Timescales of Mineral Systems Group within Curtin’s School of Earth and Planetary Sciences, emphasised that the logistics alone reveal a society capable of organising labour on a remarkable scale, marshalling hundreds of people over what must have been weeks, months or even years of sustained work.

What makes the new results especially provocative is what they suggest about motivation. If the builders had simply wanted large stones, closer sources were available. The decision to travel to Brimham Rocks instead implies that the source landscape itself carried meaning. Dr Clarke noted that prehistoric people placed real importance on the landscape, and that the location from which the stones came likely held significance for them. Brimham Rocks, with its extraordinary weathered outcrops of Millstone Grit, would have been one of the most visually striking natural places in the region, a landmark that may have been woven into local myth, ritual or identity long before a single stone was cut. In this reading, the Arrows are not merely an engineering achievement but a physical link between two special places, carrying the authority of one landscape into another.

Co-author Dr Jim Leary of the University of York framed the discovery as a fundamental reshaping of how archaeologists understand monument-building in prehistoric Britain. Ancient communities, he argued, were making deliberate and meaningful choices about where their stones came from, choices bound up with landscape, shared belief systems and the social value of effort itself. This perspective aligns with a broader shift in archaeological thinking over recent decades, away from viewing megalithic monuments purely in terms of function or efficiency and towards seeing them as expressions of worldview, memory and communal identity. The journey of a stone from its source to its final resting place may have been as symbolically charged as the monument it ultimately formed, with the act of transport itself serving to bind communities together and to embed the finished structure with stories that everyone involved could recount.

The Devil’s Arrows themselves remain one of the most enigmatic monuments of the British Neolithic and Early Bronze Age. Standing in a lowland setting near Boroughbridge, they form a rare example of a stone alignment in such terrain, oriented roughly north to south. Only three stones survive today, though evidence suggests the row may originally have included more. The stones are believed to have been transported and erected during the Late Neolithic or Early Bronze Age, possibly around 2000 BC, a period that also saw the major phases of activity at Stonehenge and other great ceremonial centres. Their sheer height makes them the tallest surviving stone row in Britain, and their presence on the low ground between the rivers Ure and Nidd has invited speculation for centuries about their role in processional routes, territorial markers or astronomical observations, questions that the new geological evidence will now help to reframe.

The research also opens a practical path forward for the study of standing stones everywhere. Because the tape-based sampling method removes nothing visible from the monument, it can be applied to stones whose origins remain unknown, including many of the several hundred megalithic monuments scattered across the British Isles and beyond. Dr Clarke and his colleagues plan to extend the technique to other standing stones with unresolved sources and to conduct targeted excavations at both the Devil’s Arrows and the newly identified source site at Brimham Rocks. Those excavations could recover evidence for the extraction of the stones, traces of the routes they travelled, and dating material that would establish more precisely when the operation took place, turning a geological provenance study into a fuller narrative of one of prehistoric Britain’s most extraordinary construction projects.

For the National Trust, which cares for Brimham Rocks, the discovery forges a direct and unexpected bond between two of Yorkshire’s most celebrated landscapes. Justin Scully, General Manager for Fountains Abbey and Studley Royal and Brimham Rocks, welcomed the research as a new chapter in the story of the stones, one that deepens understanding of the people who shaped this landscape thousands of years ago and adds to the meaning that local communities attach to the Arrows today. The study, titled Deliberate Prehistoric Sourcing of the Devil’s Arrows, Britain’s Tallest Stone Row, stands as a striking demonstration of how modern mineral science can illuminate ancient intention. Four thousand years after the monoliths were raised, the microscopic crystals inside them have testified that their journey was no accident of ice or convenience, but a conscious act of devotion, ambition and skill.

Subject of Research: Provenance of the stones of the Devil's Arrows prehistoric monument in Yorkshire

Article Title: Prehistoric builders hauled 25-tonne stones 18km to build Britain’s tallest stone row

Article References: Prehistoric builders hauled 25-tonne stones 18km to build Britain’s tallest stone row. (n.d.). Original publication

Image Credits: AI Generated

DOI: Not provided

Keywords: Devil's Arrows, Brimham Rocks, Neolithic, megaliths, standing stones, geochronology, zircon dating, North Yorkshire, prehistoric monuments, Curtin University, stone transport, Proceedings of the Royal Society A

The study, led by researchers at the University of York together with geochemists at Curtin University in Australia, applied high-resolution isotopic fingerprinting to microscopic minerals locked inside the megaliths. The Devil’s Arrows are carved from Pennine Basin Millstone Grit, a coarse-grained sandstone deposited during the Namurian period more than 300 million years ago, while the monument itself stands on Triassic Sherwood Sandstone. Crucially, the nearest gritstone outcrops lie only about five kilometres west of Boroughbridge, and other long-suspected sources such as Plumpton Rocks sit around 13 kilometres away. If the stones had simply been glacial erratics dropped by ice, their chemistry should match one of these closer sources.

By mapping the unique mineral age profiles of zircon and apatite crystals extracted from the stones, the team traced the monoliths’ exact geological birthplace to Brimham Rocks, a dramatic gritstone landscape 18 kilometres to the west in North Yorkshire. The isotopic signatures ruled out every local and intermediate candidate, settling a debate that has run for decades over whether human effort or glaciers were responsible for positioning the giants. The answer is unambiguous: Neolithic builders knowingly bypassed convenient stone in favour of a specific, distant and presumably sacred source.

Dr Jim Leary of the University of York’s Department of Archaeology noted that megalithic architecture ranks among the most visually striking features of the Neolithic landscape across Britain and Ireland, from vast ceremonial complexes such as Avebury and Stonehenge to solitary standing stones. Yet while sites in southern England and Scotland attract considerable scholarly attention, monuments like the Devil’s Arrows have remained comparatively understudied despite their obvious significance. The new results, he said, prove that Neolithic communities moved several 25-tonne stones across Yorkshire, turning a familiar site into an epic quest to create a sacred landscape.

The scale of the monument alone justifies that description. At almost seven metres tall, the three surviving pillars form the tallest standing stone row in Britain, dwarfing the sarsens of Stonehenge. The southern stone is the second-tallest megalith in the country after the Rudston Monolith, and the central stone ranks third. The three unevenly spaced monoliths stretch across 174 metres on gently sloping ground aligned toward a possible prehistoric ford on the River Ure, and historical records indicate the row once contained at least five stones and probably more.

The study also solved a centuries-old local mystery by confirming that one of the lost Arrows is hiding in plain sight. The Tudor antiquarian John Leland recorded a fourth standing stone in the mid-16th century, but decades later it had vanished. In 1687 it was reported that locals broke up a fallen stone, using part of it to build Peg Bridge over the River Tutt and carrying the top segment to Aldborough manor. In the 19th century, antiquarian J.R. Walbran proposed that another fallen monolith had been recycled into the Battle Cross, a 5.5-metre monument created in the 15th century to commemorate the 1322 Battle of Boroughbridge. The mineral fingerprinting has now proved Walbran right: the medieval cross still standing in Aldborough is a carved segment of a long-lost Arrow.

The find also reframes the monument’s place in the wider prehistoric landscape. Extensive Neolithic remains lie west of the stones, suggesting they formed the southern gateway to a vast sacred region between the Rivers Swale and Ure. That corridor contains seven late-Neolithic henges, the densest concentration in Britain, and the Arrows appear to have anchored its southern entrance. Choosing stone from Brimham Rocks, another striking natural landmark within that ritual geography, may have been as much a symbolic act as a practical one, physically connecting two extraordinary places in a single ceremonial network.

For the National Trust, which cares for Brimham Rocks, the research draws a direct and unexpected line between two of Yorkshire’s most celebrated landscapes. Justin Scully, general manager for Fountains Abbey and Studley Royal and Brimham Rocks, observed that the stones have inspired stories and curiosity for generations, including the much-loved legend of the Devil standing on How Hill and hurling giant stone arrows toward Boroughbridge, only for them to fall short where they stand today. The science, he noted, shows the real journey behind the folklore is every bit as extraordinary.

Heritage bodies hope the findings will support the monument’s long-term protection. Jess Tipper, Historic England’s North Region Inspector of Ancient Monuments, described the Arrows as a much-loved part of Boroughbridge’s rich heritage and welcomed the scientific discoveries that deepen understanding of their history, adding that further research will help safeguard them for everyone to enjoy.

Beyond Yorkshire, the study carries broader implications for how archaeologists read megalithic monuments everywhere. Isotopic fingerprinting of zircon and apatite now offers a powerful, non-invasive route to provenance for stones that have resisted conventional geological sourcing for centuries, and it can distinguish human transport from glacial redistribution with unprecedented confidence. As the technique is applied to other stone rows, circles and monoliths, more of Neolithic Britain’s engineered sacred landscapes are likely to emerge from under assumptions of glacial convenience. The research is published in the journal Proceedings of the Royal Society A.

Subject of Research: Provenance analysis of the Neolithic Devil's Arrows standing stones in Yorkshire

Article Title: Neolithic ‘Devil’s Arrow’ stones travelled 11 miles across Yorkshire, study reveals

Article References: Neolithic ‘Devil’s Arrow’ stones travelled 11 miles across Yorkshire, study reveals. (n.d.). Original publication

Image Credits: AI Generated

DOI: Not provided

Keywords: Devil's Arrows, Neolithic, megaliths, Yorkshire, Brimham Rocks, isotopic fingerprinting, standing stones, Boroughbridge, millstone grit, glacial erratics, archaeology, Proceedings of the Royal Society A