That much is certain. What is less certain is whether anything of it remains at all. Boundary cairns are essentially modest piles of stone, accumulated deliberately to signal where one piece of land ended and another began, practical landmarks in a landscape that otherwise offered few clear edges. This one sat alongside two companions, one lying roughly 70 metres to the west and another about 75 metres to the northwest, the three of them together forming a cluster of markers along the townland boundary line.

The paper trail for this cairn is thin but telling. When the Ordnance Survey produced its six-inch mapping of Ireland in 1840, the feature did not merit a mark at all. By 1897, however, the 25-inch edition noted something at the location, annotating it simply as a 'Mound'. A later Cassini edition of the six-inch map went a little further, depicting a small circular-shaped mound on the ground. Whether the surveyors of 1897 were recording a surviving cairn or merely a grassed-over remnant is impossible to say from the records alone. What is clear is that by the time satellite imagery was taken, sometime between 2011 and 2013, neither Digital Globe nor Google Earth could detect any surface remains at the spot. The feature, if it persists at all, has been absorbed entirely into the hillside.

For anyone making their way up onto Carrignabinnia, the site sits in open rough pasture, the kind of ground that discourages casual wandering but rewards those who know what they are looking for. The difficulty here is that there may be nothing visible to reward them. The coordinates place this cairn in a cluster with its two recorded neighbours, and it is worth scanning the ground carefully; occasionally what satellite imagery misses, a sharp eye at ground level can catch as a subtle rise or a scattering of stones just breaking through the turf. The record was compiled by Fiona Rooney and uploaded in November 2021, and it stands as a useful reminder that absence of visible evidence is itself a form of evidence, one that says as much about how upland landscapes change over time as any surviving monument might.