It is easy to walk past without a second thought, but this unassuming mound is the remnant of a fulacht fia, a type of ancient cooking site found in enormous numbers across Ireland, typically dating from the Bronze Age. The characteristic form is a horseshoe-shaped heap of fire-cracked stone and charcoal, built up over repeated use around a trough dug into the ground. Water was poured into the trough and heated by dropping stones that had been fired in a nearby hearth, bringing the water to a boil and allowing meat to be cooked. The marshy ground beside a river was not accidental; proximity to water was essential to the whole process.

This particular example measures twelve metres in length and six metres in width, with its opening, roughly four metres across, facing south-west. The mound itself rises only twenty centimetres above the surrounding ground, a modest profile that reflects centuries of gradual settling and erosion. What makes the spot quietly remarkable is that it does not stand alone. Two further fulachta fiadh lie close by in the same stretch of ground along the Rylane River, suggesting that this was a place returned to with some regularity, or that a community made sustained use of this wet, resource-rich corridor over a long period. Whether that represents seasonal gatherings, repeated occupation by the same group across generations, or simply a landscape that was naturally suited to this kind of activity, the clustering of three sites in one area gives the location a density of prehistoric use that is unusual even by Irish standards.