What looks at a glance like natural undulation is in fact the softened remains of a large, disused quarry, its original cuts and spoil heaps long since rounded off by decades of turf and weather.

The site first appears as a hachured feature on the 1944 to 1945 revision of the Ordnance Survey six-inch map. Hachuring was a cartographic convention used to suggest surface relief or earthworks, so the mapmakers evidently noticed something worth marking, though they recorded its shape rather than its purpose. It was not until 1984 that an inspection on the ground confirmed what the quarry had actually been. Because the workings date to after AD 1700, they fall outside the chronological scope of archaeological protection in Ireland, which generally concerns itself with earlier remains. That boundary is not a judgement on the quarry's interest, only on its age. Quarrying of this kind was commonplace in post-medieval rural Ireland, where local stone was extracted for field walls, farm buildings, and road repairs, leaving behind exactly these kinds of unassuming depressions once the work stopped and the land reverted to grazing.