A feature marked on the 1944 to 1945 revision of the Ordnance Survey six-inch map appeared, through the cartographic shorthand of hachuring, to indicate a hollow or earthwork of some significance. When someone actually walked out to inspect it in 1984, what they found was a slight depression in the ground, little more than a dip in a field.

The evidence from the maps suggests the feature was originally a sand or gravel pit, the kind of small extractive hollow that was once common across rural Ireland wherever local building or drainage work demanded material from the ground. At some point, probably during land-reclamation works in the area, it was infilled and the landscape smoothed over. Because the pit is considered to date from after AD 1700, it falls outside the scope of archaeological protection, which in Ireland generally concerns itself with earlier remains. The result is a site that existed, was mapped, was investigated, and was found to have quietly erased itself.