It measures roughly 8.8 metres east to west and 5.6 metres north to south, rising to about 0.9 metres above the surrounding ground. The gap in the horseshoe, just 1.6 metres wide, faces north-north-east, directly towards the water. This orientation is not accidental.

The mound is a fulacht fia, a type of prehistoric cooking site found in considerable numbers across Ireland, typically dating to the Bronze Age. The name, sometimes translated loosely as "cooking pit of the deer," refers to a method of heating water by placing fire-cracked stones into a trough or pit; the stones, once used, were discarded in a crescent-shaped heap around the working area. That heap is what survives here, a dense accumulation of burnt and shattered rock that resists the encroachment of the surrounding bog rather than disappearing into it. The proximity to a reliable water source, the stream to the north-north-east, was essential to how the site functioned; water would have been carried or channelled into a trough, then repeatedly heated using stones dragged from a fire. About 70 metres to the south-west, the faint outlines of relict field boundaries survive in the rough hill pasture, suggesting this was once a more actively worked landscape, the fulacht fia part of a broader pattern of Bronze Age land use rather than an isolated feature on a lonely hillside.