On the 1948 revision of the Ordnance Survey six-inch map, the feature appears as a hachured marking, the short radiating lines cartographers use to suggest a depression or slope in the terrain. It sat there on the map, ambiguous and unexamined, for nearly four decades before anyone went to look at it.

When an inspection was carried out in 1985, the feature turned out to be a disused quarry pit, most likely worked at some point after 1700. That date matters more than it might seem. Archaeological survey work in Ireland draws a practical boundary at AD 1700, before which a site falls within the scope of formal prehistoric and historic archaeology; after it, a feature belongs to a more recent, industrial, or agricultural past and is categorised differently. This quarry sits on the wrong side of that line to attract the sustained attention given to ringforts or megalithic tombs, which is perhaps why it remains so lightly documented. Quarry pits of this kind were once common features of rural Ireland, dug to extract limestone or other local stone for building walls, dressing fields, or producing lime in nearby kilns. Most have been absorbed quietly back into the landscape.