Roughly circular and partially smothered in grass, it measures just 2.3 metres across and stands less than a metre high. A cairn, in its simplest form, is a mound of stones heaped by human hands, and such features can mark anything from a burial to a boundary to a point of memorial significance. What this one was originally intended to mark, nobody now says with certainty.

Its location inside an ecclesiastical enclosure, the roughly circular boundary that typically defines an early Irish religious site, places it in suggestive company. These enclosures, often surviving only as earthworks or field boundaries, were the defining feature of early medieval monastic settlements across Ireland, and finding a cairn within one raises quiet questions about the relationship between the two features. Whether the cairn predates the religious activity at the site, or was raised as part of it, is not recorded. Its dimensions are modest enough that it could pass for a natural rise in the ground to a casual eye, which may partly explain why so little attention has gathered around it.