On the 1946 revision of the Ordnance Survey six-inch map, it appears as a hachured feature, the cartographic shorthand for a depression or earthwork, inviting the assumption that something older or more archaeologically significant might lie beneath the grass.

When the site was physically inspected in 1984, the mystery resolved itself modestly: the feature was a disused quarry, almost certainly worked sometime after 1700. That dating detail matters administratively, since Irish archaeological survey remits generally focus on features predating that threshold, meaning this particular hollow exists in a kind of official gap, too recent for archaeology, too unremarkable for architectural history, yet persistent enough to have caught a cartographer's eye decades after it was abandoned. Quarries of this period were typically small, localised operations supplying stone for nearby field walls, farmsteads, or road repairs, worked by hand and then simply left when the useful material was exhausted or the need passed.