The mound measures roughly fifteen metres north to south and twelve metres east to west, and to anyone passing it might read as little more than a dark patch of disturbed earth. What it actually represents is a fulacht fia, a type of prehistoric cooking site found in very large numbers across Ireland, typically Bronze Age in date. The working principle was straightforward: stones were heated in a fire, then dropped into a water-filled trough, bringing the water rapidly to the boil. The cracked and blackened stones, useless after a few cycles, were discarded into a horseshoe-shaped mound around the trough. Over centuries, those mounds accumulated into the low spreads that survive today.

What gives this particular site a quiet additional interest is its relationship to the landscape and to a near neighbour. A stream runs to the west, which would have provided the reliable water supply essential to the whole process. And just sixteen metres to the north-north-east lies a second fulacht fia, a proximity that raises questions about whether both sites were in use at the same time, by the same community, or at different periods entirely. The northern portion of the Farrannasheshery site shows a concentration of charred stones, some fused, suggesting that area saw the most sustained burning. The broader scatter of burnt material across the oval may reflect years or decades of repeated use rather than a single episode.