What makes it notable is its form: a roughly 21-metre-wide area that sits slightly lower than the surrounding ground, ringed by a fosse, which is essentially a broad ditch dug to define and defend a boundary. This one measures around 10 metres wide and just under a metre deep, dimensions modest enough that a casual observer might mistake it for a natural hollow or a drainage feature.

Enclosures of this kind are scattered across the Irish countryside and can belong to any number of periods, from the Bronze Age through to the early medieval. The fosse at Leamcon is accompanied by what appears to be a causeway to the north, a gap or raised crossing point that would have allowed deliberate entry into the enclosed space. That detail matters: a causeway implies controlled access, which in turn suggests the enclosure was designed not just to mark a boundary but to manage movement across it. Whether it served a domestic, agricultural, ritual, or defensive purpose remains unclear without excavation, and the site has not been publicly linked to any specific period or function beyond its physical description.