The posts protrude only slightly above the surface but extend at least 0.75 metres into the ground beneath, suggesting a structure that was once substantial, even if its purpose remains unresolved. What makes it stranger still is the spacing: the posts are set so closely together that wattling, the technique of weaving flexible branches between uprights to form a fence or wall, would have been practically impossible. That rules out the most obvious explanation, and leaves the alignment as something genuinely anomalous in the archaeological record.

The structure runs roughly parallel to the shoreline, a detail that hints at some deliberate relationship with the tidal environment rather than the land behind it. A stake recovered from the site, made of elm wood, was radiocarbon dated to approximately 166 to 43 BC, placing it firmly in the Iron Age. This was a period when Irish communities made extensive and varied use of wetland and intertidal landscapes, constructing fish traps, causeways, and platforms for purposes ranging from the practical to the ceremonial. Whether this particular alignment served any of those functions remains an open question. The site was documented by O'Sullivan and colleagues in 2010, who noted that it requires further study, a candid acknowledgement that the evidence, for now, does not resolve into a neat answer.