It measures roughly three metres across and less than a metre high, irregular in shape, the kind of thing a passing walker might step over without a second thought. Its official name, as recorded on the 1920 Ordnance Survey edition, is simply "Pile of Stones", which has a certain administrative honesty to it.

What makes it quietly interesting is its absence from the earlier map. The 1840 to 1841 OS six-inch survey, the great nineteenth-century effort to chart virtually every field, road, and ruin across Ireland, does not show it at all. By the time the 1920 edition was produced, it appears clearly, positioned on the line of the barony boundary. A barony was a unit of territorial administration inherited from the medieval period, used for centuries to organise taxation, law, and land division; boundary cairns like this one were practical markers, heaped up to make an otherwise invisible line legible on the ground. Whether the cairn was built between those two survey dates, or simply went unrecorded the first time around, is not something the maps can settle. A second boundary cairn of the same type sits approximately 177 metres to the northwest along the same ridge, suggesting a deliberate sequence of markers rather than a single isolated effort.