No earthwork, no hollow, no obvious disturbance marks the spot. The only reason anyone knows it exists is that it was discovered in recent times, through local information rather than formal excavation.

The structure is a souterrain, a type of man-made underground passage or chamber built during the early medieval period in Ireland, typically associated with nearby settlements. They were constructed from dry-stone walling, often roofed with large flat stones called flags, and served various purposes, including storage, refuge, or ventilation for a dwelling above. This particular example lies within, or possibly within, a ringfort, the remains of which carry the separate site reference 8651. A ringfort was a circular enclosed farmstead, usually defined by an earthen bank and ditch, that formed the basic unit of rural settlement in early medieval Ireland. The fact that this one is described as a "possible" ringfort suggests that its surface features have been reduced enough that classification remains uncertain, which makes the souterrain beneath it all the more quietly anomalous: the underground element survives, at least in part, while the structure it once belonged to has almost entirely disappeared from view.

There is no visible surface trace to seek out, and no practical way for a visitor to locate or inspect the chamber without specialist knowledge of the exact spot. What remains is essentially an absence, a place that registers as remarkable not for what can be seen but for what is known to lie just out of reach.