Sitting on the level shoulder of a west-facing slope, it consists of a slab that appears to be propped up by an upright stone beneath it, forming what has been described as a 'cist-like' feature. A cist is typically a small stone-lined box grave, often prehistoric in origin, used to contain a burial. Whether that is what this structure represents, or something else entirely, remains unresolved. The feature is officially recorded as anomalous, which in archaeological terms is a quietly telling designation, meaning it does not fit neatly into any recognised monument type.

What adds to the curiosity is its proximity to another prehistoric structure. Roughly 50 metres to the north-east stands a pair of standing stones, a monument type found across Cork and Kerry that generally dates to the Bronze Age, though precise dating is difficult without excavation. The two sites are catalogued together in the Archaeological Inventory of County Cork, Volume 1: West Cork, published in 1992, which groups them under the same inventory number. That editorial decision reflects the likelihood of some connection between them, while stopping short of explaining what that connection might be. The cist-like feature may be a remnant of a larger prehistoric complex, or it may simply be a stone arrangement whose original purpose has been obscured by time and the shifting of the landscape around it.