Karst is the distinctive landscape formed where limestone bedrock is gradually dissolved by rainwater, producing the bare pavements, fissures, and thin soils so characteristic of the Burren region. In that kind of terrain, where the ground itself seems reluctant to hold anything in place, the survival of any man-made boundary is quietly notable.

The enclosure measures approximately 43 metres along its north-north-east to south-south-west axis and around 32 metres across, giving it a subrectangular shape rather than the neat geometry of a planned structure. What field walls extend outwards from the east and south-east sides may be contemporary with the enclosure itself, suggesting this was once part of a working agricultural landscape, with the central enclosure and its associated boundaries functioning together as a single system. The precise period of construction is not known, but enclosures of this general type in the west of Ireland range widely in date, from early medieval farming settlements to post-medieval land divisions. The walls are only partially visible now, grassed over to the point where aerial photography has proved more revealing than a ground-level inspection, with the outline becoming legible from above in a way it rarely is underfoot.