It looks, at first glance, like nothing more than a slight rise in a wet field, perhaps the remnant of some collapsed farm structure. In fact it is a fulacht fia, one of the most common yet least understood monument types in the Irish archaeological record, and its quiet presence in the Commons townland of Shanid Barony is a small but genuine trace of prehistoric life.

A fulacht fia is, essentially, the debris left behind by an ancient cooking or heating method. The process involved heating stones in a fire until they were extremely hot, then dropping them into a water-filled trough to bring the water rapidly to the boil. The stones, cracked and shattered by repeated heating, were discarded in a heap beside the trough, and over generations that heap became a mound of burnt and fragmented stone, often darkened with charcoal. The result is what survives here: a roughly oval mound measuring approximately 6.6 metres east to west and 4 metres north to south, rising to about 0.85 metres at its highest point. Such sites are typically associated with the Bronze Age, though their exact function remains debated, with theories ranging from meat cooking to communal bathing or even textile processing. The site was recorded and compiled by Denis Power, with the record uploaded in August 2011.

The mound sits in marshy ground, which is entirely typical; fulachtaí fia are almost always found near water sources, since a ready supply was essential to the whole process. The north-facing slope and wet pasture here reflect the kinds of marginal land where these sites are routinely encountered, often because such ground was never ploughed or developed intensively enough to destroy them. The record notes that the mound has been denuded in places by cattle, a very common form of gradual erosion on unprotected earthworks in active farmland. There is nothing formally managed or signposted at this site, and access would require permission from the landowner. For anyone with an interest in prehistoric landscape archaeology, it is worth knowing that these unremarkable-looking mounds are far more numerous in Ireland than most people realise, and this particular example, worn down and grazed over though it is, sits in much the same soggy ground it occupied several thousand years ago.