Futuristic wind turbines are spinning high on a Welsh mountain, looming over centuries of history.
But there’s something hidden beneath the access roads, an ancient feature that cuts straight through the peat.
For thousands of years, the massive relic of another age lay undisturbed. Only until the bulldozers pulled in.
Archaeologists suddenly had a mystery to solve. But how did everyone miss that it was there in the first place?
What was this ‘5,000-year-old stone alignment,’ and who built it?
How engineers worked around 105 archaeological sites
Mynydd y Betws in Wales is as wild as it gets. It covers 1,977 acres of heath and bog in the region of Carmarthenshire.
Today, the land is the home of a massive renewable energy setup. There are 15 giant turbines, each standing 360 feet in the sky, dispatching up to 45 megawatts of clean power.
But building here was a historical gamble like no other.
The landscape is saturated with deep history. “Deep” is figurative here, because it’s actually lying just beneath the surface.
The essential initial environmental assessments picked up 105 significant archaeological sites. Bronze Age burial mounds are common, littering almost the entire area.
Planning got super tight.
Engineers were forced to move Turbines 14 and 16 just to protect known official Scheduled Ancient Monuments.
The developers did everything right. They scanned using radar, dug trial trenches at strategic points, and bored into the soil to check what lay beneath.
But the peat still concealed a great secret. And it was smack-bang in the path of the main access roads.
A historical 2,300-foot archaeological battle line
When the bulldozers started moving earth, a long line of stones emerged. It stretched for 2,300 feet through the peat, indicating that the stones had been deliberately set.
A fierce archaeological battle began, with two sides not seeing the same thing.
Sandy Gerrard, an independent archaeologist, looked at the alignment and perceived an ancient masterpiece.
The pattern mirrors Bronze Age stone rows discovered 100 miles south in Dartmoor. Apparently, it points directly toward a cemetery of more than 30 ancient burial cairns.
But Cotswold Archaeology contract archaeologists didn’t feel the same way.
They hand-excavated four of the stones, finding no prehistoric packing pits or stone settings.
Instead, they pointed to the mountain’s rich anthracite coal deposits. They say that these stones were just waymarkers to help local miners navigate in the mists of the moorland.
Ultimately, the marker path was crushed to make way for modern technology and modern needs.
So, which side turned out to be right?
The ultimate riddle: Did developers destroy an industrial relic or a ceremonial pathway?
The controversy has essentially come to a stalemate.
Diggers have moved on, and the wind farm is operational. And the secret will remain just that.
Researchers found no datable prehistoric artifacts during the excavations. They didn’t find any ancient charcoal or organic matter among the stones either.
This means no proof that either theory is the correct one. The answers to the stone alignment’s purpose and who built it will most likely never be found.
A mere map or sacred monuments to the dead?
Cotswold Archaeology says the stones are an industrial relic of little importance. They simply served as a map for local Welsh miners on foot.
But Sandy Gerrard suspects that a tragic mistake occurred.
A 5,000-year-old Neolithic ceremonial pathway survived millennia, only to be sliced up by a wind farm access road.
Today, the turbines harvest the wind above a feature of our deepest past.
We may never truly know if we are looking at a sign of Welsh industry or a sacred monument to the dead. Could the green energy boom unwittingly be crushing ancient history?