Hachuring, the system of short radiating lines used by cartographers to indicate slopes or surface irregularities, marked this spot as something worth noting, though the map itself offered no further explanation. When someone finally went to look in 1983, the feature turned out to be a disused quarry, almost certainly worked at some point after 1700.

Its post-1700 date is, in an administrative sense, the most consequential thing about it. Archaeological survey programmes in Ireland generally concern themselves with monuments and sites from before that threshold, so the quarry falls just outside the boundary of formal archaeological interest. That places it in an odd category: visible enough to appear on a mid-twentieth-century map revision, investigated in the early 1980s, and then quietly set aside. Quarries of this period were commonplace features of the Irish landscape, dug to extract limestone, sandstone, or gravel for local building and road-making, and most left little documentation behind them.