This one is remarkable for what does not. In the townland of Gleann Iarthach in west County Cork, a standing stone once occupied the landscape, one of the many thousands of upright monoliths erected across Ireland during prehistory, typically as boundary markers, ceremonial focal points, or memorials. Today there is no visible surface trace of it whatsoever.

According to local information, the stone was removed sometime during the 1920s. The decade was not an unusual one for such losses; land clearance, agricultural improvement, and the general upheaval of the period all took their toll on prehistoric monuments across rural Ireland. Whatever the specific circumstances in Gleann Iarthach, the stone was taken down and, apparently, disposed of entirely, leaving no fragment, stump, or socket visible at ground level. Its precise original location, dimensions, and character are unrecorded, which means that even its absence is difficult to describe with any certainty.