The mound measures roughly twelve metres east to west and eight metres north to south, rising less than a metre above the surrounding ground. It is composed of burnt material, the characteristic signature of a fulacht fia, and that is precisely what makes it interesting to anyone prepared to look past the unremarkable surface.

A fulacht fia is an ancient cooking or processing site, typically consisting of a trough dug into the earth, a nearby water source, and a heap of fire-cracked stone left over from repeated use. The method involved heating stones in a fire and dropping them into a water-filled trough to bring it to boiling point, a technique used across Ireland from the Bronze Age onward. The crescent or oval mound of discarded burnt stone that accumulates over time is often the only visible trace remaining. At Gooseberryhill, the setting fits the pattern closely: marshy ground, a spring immediately adjacent, and the burnt mound sitting just four metres south-west of a rectangular enclosure. A second fulacht fia lies roughly eight metres to the east, incorporated into the south-west scarp of that same enclosure, suggesting the area saw sustained or repeated activity across time. The relationship between the two monuments and the enclosure raises quiet questions about how this particular patch of ground was used and reused, though the record does not answer them directly.