That it exists at all is now largely a matter of cartographic faith. No surface remains are visible in any modern satellite imagery, and the clearing within the upland forestry plantation where it supposedly stands offers little to the eye. Yet the record insists it was there, doing the quiet administrative work of defining where Ballintober ended and Glenarre and Glenbrohane began.

Boundary mounds of this kind were a practical technology, raised at the edges of townlands, those ancient units of land division that formed the basic grid of rural Irish life, to settle disputes and orient local memory. This particular example sits, or sat, roughly 760 metres south of the summit of Slievereagh, a peak known locally as the Pinnacle and standing at 1,531 feet. What makes its record slightly puzzling is the gap in its cartographic history. The first Ordnance Survey edition of the six-inch map, produced around 1840, makes no mention of any mound at the location. It is only on the later 25-inch edition of 1897 that the feature is annotated, simply and without elaboration, as "Mound". Whether the feature was overlooked by the earlier surveyors, was constructed in the intervening decades, or was simply too modest to warrant inclusion at the smaller scale, the notes do not say. The record was compiled by Martin Fitzpatrick and uploaded in October 2021.

Reaching the site means navigating a large upland forestry plantation on Slievereagh, the kind of conifer landscape that tends to disorient and obscure in equal measure. The clearing where the mound was recorded lies well below the Pinnacle summit, and given that aerial and satellite imagery from between 2011 and 2013 showed no visible surface remains, there is no guarantee that anything survives to be found underfoot. For those drawn to the more spectral end of Irish field archaeology, that absence is itself part of the interest: a feature that appears on one map, vanishes from another, and has since retreated entirely from the visible landscape.