The ground has been levelled, the earthworks erased, yet the drainage channel that removed the site also exposed the evidence of what once stood here: a scatter of burnt, heat-cracked stone that is the signature trace of a fulacht fia.

A fulacht fia is a prehistoric cooking site, typically a horseshoe-shaped mound of fire-shattered stone built up around a trough dug into waterlogged ground. Stones were heated in a fire and then dropped into the water-filled trough to bring it to a boil; the cracked and blackened stones, useless for reheating, were piled to the side, gradually building the mound. They are among the most common archaeological monument types in Ireland, found in the thousands, and they cluster noticeably in low-lying, wet ground near streams, exactly the kind of landscape that drainage schemes have long targeted. This one at Garraunredmond did not survive that process intact. What the drainage works destroyed in form, they inadvertently revealed in section, the burnt material now sitting exposed in the cut channel. A second example of the same monument type lies roughly 40 metres to the north, suggesting this stretch of streamside ground was used repeatedly, perhaps across generations, for whatever purpose these sites served.