To an untrained eye it might read as a slight rise in the ground, unremarkable against the broader landscape. To an archaeologist, its shape and composition mark it out immediately as a fulacht fia, one of the most common yet persistently mysterious monument types in the Irish countryside.

A fulacht fia is essentially the debris left behind by a Bronze Age cooking or heating site. The typical arrangement involved a trough dug into the ground, a nearby water source, and a supply of stones that could be heated in a fire and then dropped into the water to bring it to the boil. The cracked and shattered stones, useless once cooled, were piled to the side, forming the horseshoe-shaped or circular mounds that survive in their thousands across Ireland. Their exact purpose has been debated for decades; cooking large quantities of food is the most widely accepted explanation, though uses ranging from textile processing to bathing have also been proposed. The Clyderragh example fits the general profile well, a compact, roughly circular spread of burnt material that has endured, however inconspicuously, through millennia of agricultural activity around it.