Dashed lines on OS maps of that period typically indicated features that were uncertain, already degraded, or visible only as cropmarks or earthwork traces rather than standing structures. Whatever this enclosure was, even the cartographers of the 1830s seemed unsure of its solidity.

The shape itself is suggestive. D-shaped or roughly circular enclosures in the Irish landscape are frequently associated with early medieval settlement, the kind of enclosed farmstead, known as a ringfort or rath, that was once common across the country. The fact that a field boundary had already absorbed one side of the feature by the time the map was made points to a long process of agricultural erasure, the enclosure slowly cannibalised by the working landscape around it. Today, nothing is visible at ground level. The site exists now only as a cartographic ghost, a dashed outline on a sheet of paper that recorded something already half-gone nearly two centuries ago.