At Carhoon in County Cork, a feature was logged as a quarry in the late 1980s and carried forward into subsequent records, yet the evidence behind that classification has never been strong enough to confirm the site as a genuine archaeological monument of any kind. It sits in an odd liminal category, recorded but unverified, present on maps without being fully accounted for.

The listing appeared in the Sites and Monuments Record in 1988 and was repeated in the Record of Monuments and Places a decade later in 1998. Such records were compiled during a period of intensive national survey work, when fieldworkers were cataloguing features across the Irish landscape at considerable speed and scale. Occasionally, natural landforms, post-medieval workings, or simply ambiguous ground features were noted provisionally, with the expectation that later investigation would either confirm or dismiss them. In this case, that confirmation never arrived, and the quarry at Carhoon remains a placeholder of sorts, a question mark dressed up as a map entry.