The stones, each roughly a metre long and about half a metre wide, define a cairn, which in this context is a prehistoric mound or stone monument, measuring approximately 19.5 metres north to south and 19 metres east to west. What is quietly unusual here is that combination of deliberate placement and apparent disorder: the stones have spread or tumbled over time, yet the circular form remains legible, an outline rather than a solid structure, suggesting something once more substantial has gradually dispersed.

The ridgeline setting is characteristic of many prehistoric funerary or ceremonial monuments in Ireland, where elevated ground served both practical and symbolic purposes, offering visibility across the surrounding landscape and, perhaps, a sense of proximity to something beyond the everyday. The rectangular character of the stones and the scale of the overall spread place this in the general company of Bronze Age cairns found throughout Munster, though the precise date and original form of the Letterlicky example remain unclear from what survives above ground.