That proximity is the detail that catches the eye. One fulacht fia sitting alone in a field is unremarkable by Irish standards; there are thousands of them across the country. Two, practically side by side, raises questions about how this particular patch of ground was used and why people kept returning to it.

A fulacht fia, sometimes called a burnt mound, is essentially the debris left behind by an ancient cooking method. The typical process involved heating stones in a fire, dropping them into a water-filled trough to bring it to the boil, and using the hot water to cook meat. The cracked and shattered stones were then raked aside, and over repeated use they accumulated into the low, horseshoe-shaped mounds that survive in fields across Ireland today. Most date to the Bronze Age, roughly 1500 to 500 BC, though some are earlier or later. At Gooseberryhill, the spring beside the site would have provided the water supply that made the location practical in the first place, and the presence of a second fulacht just to the west suggests the spot was a reliable, repeatedly chosen one. One of the two mounds has its burnt material incorporated into the southern half of the south-western scarp of a rectangular enclosure nearby, which suggests some later reuse or overlap of the landscape, though the relationship between the two features is not fully resolved.