But the ground beneath it is packed with burned stone, and that detail alone marks it out as something far older and stranger than the drained agricultural land surrounding it today. This is a fulacht fia, a type of prehistoric cooking site found in enormous numbers across Ireland, typically Bronze Age in origin. The standard interpretation is that they functioned as outdoor cooking places, where stones were heated in fire and then dropped into a water-filled trough to bring it to the boil. The cracked and fire-shattered stone was raked out after each use and piled up nearby, and it is those discarded heaps that survive as the characteristic horseshoe-shaped or oval mounds still visible across the Irish landscape.

This particular example measures roughly 18.6 metres east to west and 13.9 metres north to south, with traces of a counterscarp, a low outer bank, running along its south-western side. When the site was described in 1980, probing at multiple points consistently turned up dense stone just below the surface, and an uprooted tree in the north-western corner had already begun pulling that buried material into view. A second fulacht fia sits approximately 180 metres to the north-west, suggesting this boggy ground in Farranistick was visited and used repeatedly, perhaps over a long period. Neither monument appeared on the Ordnance Survey six-inch map of 1837 or the revised twenty-five-inch edition of 1913, and neither is visible on aerial photography, which speaks to how thoroughly the landscape has been altered by modern drainage and how little of either monument now projects above the surrounding field level. The researcher Victor Buckley identified and catalogued this one on a sketch map as Fulacht Fiadh No. I, leaving a paper trail where the land itself has become largely silent.