In 1999, construction workers in County Clare refused to cut down a solitary hawthorn bush standing in the path of a new bypass. The road was rerouted at considerable extra cost. The reason? That tree was home to the fairies — and nobody on the crew was willing to take the risk.
This was not the nineteenth century. It was not a rural legend whispered in a dim kitchen. This was a headline in a national newspaper. The engineers simply worked around it.
What Is a Fairy Fort?
Scattered across the Irish countryside, often half-hidden beneath brambles or standing alone in a field, are thousands of circular earthen mounds. Some are modest humps, barely a metre high. Others are substantial ring-shaped earthworks with deep ditches.
Archaeologists call them ring forts, or raths. Farmers, and most Irish people of a certain generation, call them fairy forts.
These were, in truth, the homesteads of Iron Age and early medieval Irish families — built for protection, for livestock, for living. Ireland has more than 45,000 of them. Many have stood for over a thousand years.
But the explanation of what they were has never entirely displaced the belief in what they are.
The Fear That Goes Deeper Than Superstition
The fairy fort is said to be a portal — a thin place where the world of the living and the Otherworld press close against one another. The Sídhe (pronounced “shee”), the supernatural beings of Irish folklore, were believed to inhabit these mounds.
Not the delicate, fluttering fairies of Victorian imagination. Something older, more powerful, and considerably less predictable.
To disturb a fairy fort — to dig into it, level it, remove its stones — was to invite catastrophe. Illness. Dead livestock. A run of bad luck that no amount of praying could shake. And unlike most superstitions, this one carried consequences specific enough to be repeated across generations as personal testimony, not abstract warning.
The Trees Nobody Will Cut
Closely connected to fairy forts is the lone hawthorn tree — the fairy thorn. These ancient, gnarled trees, often found growing alone in the middle of otherwise clear land, are among the most quietly protected heritage features in Ireland.
Farmers have ploughed around them for centuries. Fields have been divided to accommodate them. Whole hedgerows shaped to leave the lone hawthorn untouched. To cut one down, particularly during May when they bloom, was considered deeply unlucky.
Even today, if you walk the Irish countryside and notice a single tree growing oddly in the middle of a field — alone, ancient, with unploughed ground around it — there is a strong chance the farmer’s grandfather refused to touch it, as did his grandfather before him.
Roads That Swerve for the Fairies
The County Clare hawthorn story is often cited as the most famous example, but it is far from isolated. Road schemes in Limerick, Mayo, and Cork have all, at various points, been adjusted to avoid disturbing a fairy fort or lone thorn tree.
Engineers, project managers, local council officials — people whose professional lives are built on measurement and logic — have found themselves accommodating the beliefs of communities who are, at the very least, not willing to be the person responsible for levelling something that should not be touched.
It is rarely framed as superstition. It is usually framed as heritage. The distinction matters less than the outcome: the fort remains, the tree stands, and the road goes around.
Where to Find Fairy Forts in Ireland
They are everywhere, though some are more dramatic than others. The Grianan of Aileach in Donegal is a stunning stone ring fort on a hilltop with panoramic views. Staigue Fort in Kerry sits in a remote valley surrounded by mountains — stand inside its walls and feel something of the lives lived there two thousand years ago.
But the ones that stay with you are often the unannounced ones. The grassy mound at the corner of a field in Roscommon. The tangle of trees on a low hill in Tipperary that the farmer won’t go near. The slightly raised circle in a meadow in Clare that locals simply call “the fort” — as though no further explanation is required.
If you are planning a trip to Ireland and want to experience something beyond the tourist trail, keep your eyes on the fields. They tell a longer story than most guidebooks acknowledge.
Does Anyone Still Believe?
Belief is perhaps not quite the right word. What persists is something more nuanced: a reluctance to dismiss, a cultural memory too deep to be shrugged off entirely, and a respect for the agreement between Irish people and their landscape that has held, quietly and stubbornly, for a very long time.
“I wouldn’t touch it,” is enough. It always has been.
If the folklore and hidden stories of Ireland speak to you, the Love Ireland newsletter explores the country’s quieter traditions — the ones passed down in kitchens, not published in travel guides.
There is no shortage of ancient wonder in Ireland above ground too. If fairy forts spark your curiosity, you might find that a night at one of Ireland’s great castle stays brings that same feeling: of sleeping close to centuries, in a place the past has not entirely left.
Secure Your Dream Irish Experience Before It’s Gone!
Planning a trip to Ireland? Don’t let sold-out tours or packed attractions spoil your journey. Iconic experiences like visiting the Cliffs of Moher, exploring the Rock of Cashel, or enjoying a guided walk through Ireland’s ancient past often sell out quickly—especially during peak travel seasons.
Booking in advance guarantees your place and ensures you can fully immerse yourself in the rich culture and breathtaking scenery without stress or disappointment. You’ll also free up time to explore Ireland’s hidden gems and savour those authentic moments that make your trip truly special.
Make the most of your journey—start planning today and secure those must-do experiences before they’re gone!