On the 1945 revision of the Ordnance Survey six-inch map, the spot was marked with hachures, the short radiating lines mapmakers use to suggest a depression or earthwork in the landscape. The implication, to anyone reading the map, was that something of possible antiquity lay there.

When the site was physically examined in 1984, the feature turned out to be a disused gravel quarry, almost certainly worked at some point after 1700. That date matters administratively, since Irish archaeological surveys tend to focus on remains from before that threshold, but it also places the quarry in a period of considerable rural activity across Connacht, when small local extractions of gravel and stone were common for road-making and building. The site sits precisely at the point where a cartographic question mark meets a fairly mundane answer, which is itself a small lesson in how landscape features accumulate meaning and then lose it again.