It is, in every practical sense, an island: springs well up on all sides, leaving the mound encircled by soft, wet ground, while the sod-covered surface itself remains firm underfoot. That arrangement is not coincidental. This is a fulacht fia, a type of prehistoric cooking site found widely across Ireland and Britain, typically consisting of a mound of fire-cracked stone accumulated beside a water source. The method involved heating stones in a fire, then dropping them into a water-filled trough to bring it to a boil, a process efficient enough to be repeated at the same spot over long periods. The broken, discarded stones piled up into the mound we see today.

The mound here measures roughly 19.8 metres east to west and 19.3 metres north to south, and rises to about 0.7 metres at its northern edge. It is composed of densely packed, shattered sandstone held within a charcoal-rich matrix, the charcoal being the residue of the repeated fires used to heat those stones. On the lower south-south-east side of the mound, there is a faint depression that likely marks where the trough once sat, the working heart of the site, now just a subtle hollow in the ground. The basin of marshy ground in which the whole feature sits is fed by natural springs and enclosed by higher ground to the south-east and west, making it the kind of reliably wet, sheltered spot that prehistoric communities seem to have consistently favoured for this type of activity. Adding to the layered character of the location, a holy well lies approximately ten metres to the south-west, suggesting that this particular spring-fed hollow held some significance across very different periods of time.