At Cullenagh in County Kerry, a probable standing stone once rose from the ground without ever appearing on the Ordnance Survey maps, unrecorded by the cartographers yet apparently known locally well enough to be remembered after it was gone. That combination, absence from the official record and absence from the landscape itself, makes it a peculiarly elusive entry in the archaeology of the Iveragh Peninsula.

The stone stood roughly 150 metres south-south-west of a related monument in the same townland, and by all accounts matched it in height, described as an equally tall upright. Both were lost during land reclamation operations in the 1950s, a period when agricultural improvement schemes across Ireland cleared a great deal of prehistoric stonework that had stood in fields for millennia. Standing stones are among the most enigmatic monuments in the Irish landscape; their precise purposes remain debated, with proposed functions ranging from territorial markers to ritual focal points to astronomical alignments, and their dates are difficult to establish without associated finds. The Cullenagh stone's pairing with a nearby monument, and the fact that local memory preserved knowledge of it long after it vanished, suggests it was a recognised feature of the area rather than an isolated curiosity. A. O'Sullivan and J. Sheehan documented it in their 1996 archaeological survey of South Kerry, drawing on exactly that kind of local knowledge to account for what the maps had missed.