Hachuring, the system of short radiating lines used by cartographers to indicate a depression or earthwork in the landscape, pointed to something physically present in the ground at that time, most likely a pit or quarry. By the time anyone looked for it in 1983, it was gone. A housing estate had been built across the site, and no surface trace of any kind remained.

What makes this small episode quietly interesting is what it illustrates about the pace at which the suburban expansion of Irish towns consumed features that had never been formally investigated. The Ballinfoile feature dated to after 1700, placing it outside the scope of archaeological protection, which tends to concern itself with earlier remains. It was, in other words, recent enough to be considered ordinary and old enough to have vanished before anyone thought to record it on the ground. The cartographic evidence is all that survives, a mark on a mid-twentieth century revision of a nineteenth-century map, suggesting a working hollow in the land that quarried stone or extracted material of some kind, and that was later levelled and built over without note.