British archaeologists have made a discovery they believe points to an unusual ancient monument that once stood in Northwest England 4,500 years ago.
The unique find, made by avocational archaeologists with the Wigan Archaeological Society, was discovered on a farm in the Greater Manchester area, after aerial photography of the region revealed an unusual, dark circular area in a farmer’s field.
Initial excavations at the discovery site had revealed what the Wigan team believed to be a burial site near Aspull, a village in the greater Wigan area. However, further studies at the site have revealed that there may be more to this ancient English mystery.
“We think it’s been repurposed from an earlier monument,” said Bill Aldridge, a member of the Wigan Archaeological Society, in a statement. Aldridge and others say the unique evidence they have unearthed, which includes a massive, oval-shaped ring ditch encircling the area, points to the existence of “a neolithic henge” that once stood there.
Such structures were unique to the Neolithic period and were not associated with later groups that occupied the area.
“Bronze Age people didn’t do that,” Aldridge recently told the BBC about his team’s discovery.
Unearthing a Neolithic Henge
Henges—massive circular monuments consisting of wooden or stone pillars or other upright objects—were built by many prehistoric cultures worldwide. Arguably, one of the world’s most famous henges is the iconic Stonehenge monument on the Salisbury plain in Wiltshire, England.
Most English henges date to between 2000 and 3000 BC, and there are close to 100 of their remnants that are known to exist throughout the United Kingdom.
For the last three years, the Wigan Archaeological Society has been conducting excavations on the landowner’s farm property at Aspull with the landowner’s permission. However, they hadn’t expected to find evidence of a Neolithic henge, especially not in Manchester.
Aldridge said such a discovery “is totally unprecedented in this part of the country.”
A Site Keeping Many Mysteries
As to the significance of the mysterious site, the Wigan team remains unsure, although several theories have been put forward, including an ancient mining operation and ancient seasonal flooding, both of which its ancient builders may have hoped to influence with the construction of a sacred monument.
Something made it special,” said Chris Drabble, one of the society’s contributors, who said other members had suggested the site may have been associated with resources its ancient builders used for making jewelry or a range of other things.
While the site’s purpose remains mysterious, ongoing excavations are hoped to reveal deeper insights into the Wigan team’s discovery. With their fourth season having been underway since early Summer 2025, the team’s past discoveries at the location included cremation burials and what Aldridge describes as “a strange octagonal feature” beneath a layer that included several layers of cremated bone.
Aldridge says the odd structure “is still puzzling” for him and his colleagues, although the Wigan team believed it was most likely a clay-lined pit that was dug into the surrounding clay with a large stone slab inserted to fill its base.
Additional details about the team’s work at the Aspull site can be found on the Wigan Archaeological Society’s official blog.
Micah Hanks is the Editor-in-Chief and Co-Founder of The Debrief. A longtime reporter on science, defense, and technology with a focus on space and astronomy, he can be reached at micah@thedebrief.org. Follow him on X @MicahHanks, and at micahhanks.com.