The name translates roughly as "wild deer cooking place," and for much of the twentieth century that is precisely what archaeologists assumed they were: outdoor cooking sites used by hunters, where water was heated by dropping fire-cracked stones into a trough until meat could be boiled. More recently, researchers have proposed other uses, from brewing to textile processing to bathing, and the debate has not fully settled. What is consistent across nearly all fulachtaí fia is their setting: close to water, often in low-lying or marshy ground, and identifiable by the distinctive burnt and shattered stone that accumulates around the trough over repeated use.

These sites belong overwhelmingly to the Bronze Age, roughly 2000 to 500 BC, though some have produced dates stretching into the Iron Age. The method of heating water without metal vessels or open fire directly in the liquid is older than it might sound; the technology is simple, effective, and leaves a very particular archaeological signature, which is why so many fulachtaí fia have survived into the present even where the surrounding landscape has been heavily farmed. Ireland has more recorded examples than anywhere else in Europe, and County Clare has its share scattered across bogland and pasture alike. The one at Coad is among them, a quiet piece of prehistoric routine preserved beneath the grass.