At Cathair Bó Sine, on the lower eastern slopes of Lateevemore on the Dingle Peninsula, what survives is a roughly circular elevated patch of earth, about 47 metres across and no more than 30 centimetres high. That shallow mound is essentially all that is left of what was once a univallate ringfort, meaning a single-banked enclosure of the kind that served as a farmstead or small defended settlement during early medieval Ireland, typically surrounded by an earthen bank and an outer ditch, known as a fosse.

The site's story of loss is unusually well documented. A Ministry of Defence aerial photograph taken in 1949 shows the enclosure clearly, the bank and fosse still legible as a complete circular form. By the time the Dingle Peninsula archaeological survey was compiled by J. Cuppage and published in 1986, the destruction was already evident, caused largely by the removal of adjacent field fences. That kind of land improvement work, reorganising boundaries for agricultural efficiency, has quietly erased hundreds of similar sites across Ireland, often without any formal record of the loss. The 1949 photograph is now the clearest evidence that a coherent structure ever existed here at all.

The name Cathair Bó Sine adds a quiet layer of interest. "Cathair" in Irish place names typically refers to a stone fort or an ancient settlement, though the structure recorded here appears to have been earthen rather than stone-built. Whether the name preserves a memory of an earlier or different kind of enclosure on the same ground is impossible to say with certainty. What remains on the slope of Lateevemore is a site most visitors would walk across without pausing, a low circular swell in the landscape that only makes sense once you know what the photograph from 1949 once showed.