It does not announce itself with standing stones or earthen banks you could walk along; instead, it shows up only from the air, as a faint cropmark pressed into the ground. The shape that emerges is roughly D-shaped, measuring approximately 25 metres northwest to southeast and around 20 metres northeast to southwest, and it is the kind of thing that takes a trained eye and the right season to notice at all.

Cropmarks appear when buried features, such as the filled-in ditches of ancient enclosures, affect how vegetation grows above them. A fosse, essentially a ditch dug to define and defend a settlement or ritual space, retains moisture differently from undisturbed ground, so the grass or crops above it may green up or dry out at a slightly different rate, creating a ghostly outline visible in aerial photographs. In this case, the enclosure was recorded in digital aerial photographs taken in 2004. A road running northeast to southwest has cut across the southeastern side of the feature, truncating it, which means whatever enclosed space this once was, part of its boundary has been lost entirely to later infrastructure. The age of the enclosure is not established from what is currently known, though D-shaped enclosures of this kind are associated in Ireland with early medieval settlement activity, where a curving fosse and internal bank would once have bounded a farmstead or small community.