On the 1944 to 1945 revision of the Ordnance Survey six-inch map, the site appears as a hachured feature, the kind of cross-hatched marking cartographers used to indicate a hollow or earthwork of some kind. When someone finally went to look in 1984, the mystery resolved itself quietly: it was a disused quarry, most likely used for extracting stone or gravel to serve local agricultural or construction needs in the post-medieval period.

The quarry post-dates 1700, which places it outside the scope of formal archaeological classification. That cutoff is worth pausing on. Irish archaeological survey work generally concerns itself with pre-modern remains, so a site like this one occupies an odd administrative no-man's-land, too recent to be of archaeological interest in the official sense, yet old enough to have faded entirely from living memory and to have earned its own symbol on a mid-twentieth-century map. The gap between what gets recorded and what gets studied is occasionally wider than it appears.