When the ground is turned, an irregular spread of burnt and broken stones mixed with black earth appears, measuring roughly 11.5 metres north-east to south-west and 10 metres across. From the air, it reads as a dark smudge against the surrounding soil, visible in aerial photography as far back as 2005. It is easy to overlook, and that is precisely what makes it interesting.

This kind of feature is known as a burnt mound, one of the most common yet least celebrated archaeological monument types in Ireland. The general understanding is that they represent the debris of repeated episodes of heating stones in fire and then dropping them into water-filled troughs to bring the water to boiling point, most likely for cooking, though bathing and industrial processes have also been proposed. The shattered, heat-cracked stones and the dark, charcoal-rich earth are the accumulated leavings of that process, sometimes built up over generations. Sites like this one tend to date to the Bronze Age, roughly 2000 to 500 BC, and they are almost always found near a water source. A second burnt mound lies approximately 25 metres to the east, suggesting this stretch of slope saw sustained or repeated use rather than a single isolated event. The proximity of two such features to one another is a quiet detail worth pausing on; it implies a landscape that was worked and revisited, not just passed through.