It is, in fact, a fulacht fia, a type of prehistoric cooking site found in great numbers across Ireland, typically Bronze Age in date. The mound itself is compact, roughly twelve metres north to south and seven and a half metres east to west, rising only about sixty centimetres above the surrounding ground. What lies within it tells a more interesting story: shattered sandstone fragments packed into charcoal-rich soil, the signature remains of repeated heating and rapid cooling.

The mechanics of a fulacht fia are straightforward once you know what you are looking at. Stones were heated in a fire, then dropped into a water-filled trough to bring the water to a boil, shattering in the process. Over time, the discarded cracked stones accumulated into the characteristic mound we see today. At this particular site, a slight slump or depression on the eastern side of the mound is thought to mark where the trough once sat. The stream running along the northern edge of the mound, drawing its water from a spring roughly twenty-five metres to the south-west, would have provided a reliable water source, exactly the kind of setting these sites consistently favour. What makes the location quietly remarkable is the density of prehistoric and later activity clustered nearby. A possible second burnt mound lies only six metres to the west, another confirmed burnt mound sits roughly thirty metres to the north-east, and a holy well, a water source that often preserves the memory of long-sacred ground, lies about twenty-five metres to the south-west. The spring, the well, and the repeated human activity around this wet pasture suggest this small, unremarkable-looking patch of Sligo held some significance across a very long stretch of time.