Beneath the gorse and turf, however, it is composed almost entirely of heat-shattered stones and charcoal-enriched soil, the accumulated debris of repeated, intense burning over what may have been centuries of use in prehistory.

This is a burnt mound, a type of monument found widely across Ireland and Britain, typically dating to the Bronze Age. The working theory is that such mounds formed beside water sources where stones were heated in fire and then dropped into a trough or pit of water to bring it rapidly to the boil, perhaps for cooking, bathing, or industrial processes such as working hides. The stones, fractured by the thermal shock, were then discarded in heaps, which is precisely what this mound consists of. It measures roughly 7 metres north to south and nearly 10 metres along its straight southern edge, rising to about 1.2 metres, giving it a D-shaped plan when viewed from above. A boulder is embedded into that southern face, and a short arc of upright stones stands about 2 metres from its south-western corner. What makes the setting particularly interesting is the density of monuments in the immediate area: a second burnt mound lies just 6 metres to the west, and a standing stone rises from the hillside roughly 50 metres to the south-east. Whether these features were in use simultaneously or accumulated across different periods is not known, but their proximity suggests this stretch of rough hill pasture beside the stream held some persistent significance for the people who lived here.