They appear as low, horseshoe-shaped mounds, typically found near a water source, and represent what archaeologists believe to be Bronze Age cooking sites, though theories about their use have ranged from brewing to textile processing. The one recorded at Gorteen in County Clare is a quiet addition to this remarkably widespread class of monument.

The general picture of how a fulacht fia worked is reasonably well understood. A trough was dug into the ground, often lined with wood or stone to hold water, and stones were heated in a nearby fire before being dropped into the trough to bring the water to a boil. The crescent-shaped mound that survives in the landscape is the accumulated debris of those fire-cracked stones, discarded after each use over what may have been many generations. Bronze Age examples in Ireland date broadly from around 1500 BC onwards, though some sites have produced earlier dates. Clare, like much of Munster, has a particularly dense distribution of these monuments, many of them clustered in low-lying, boggy ground where water was reliably close to the surface. The Gorteen site fits into that wider landscape pattern, a single data point in a prehistoric record that remains, in many of its local details, still being pieced together.