Measuring roughly 47 metres across its north-south axis, it presents itself as a low bank of earth and stone curving from west through north to east, with a degraded scarp completing the southern half. What makes it genuinely puzzling is a feature inside: the ground immediately within the bank sits noticeably lower than the surrounding field, creating the appearance of an internal fosse, the kind of defensive ditch that often accompanies ringforts and other enclosed settlements. The problem is that the interior then gradually rises back up toward the centre, which suggests the depression might simply be natural topography rather than anything deliberately dug.

That ambiguity runs through the whole monument. Enclosures of this kind are usually interpreted as the remains of a ringfort, a type of enclosed farmstead common across Ireland from roughly the early medieval period, or occasionally as a large barrow, a burial mound, though archaeologists consider the latter possibility less likely here. A third reading is perhaps the most quietly unsettling: that this is simply a landscape feature, a natural undulation that happens to look, from certain angles, like something made by human hands. Complicating matters further, cultivation ridges run north to south across the interior and overlie the scarp, meaning that at some point farmers were ploughing directly over whatever this structure once was, obscuring its original form still further. The site is described as very poorly preserved, which is itself a kind of answer: centuries of agricultural use in gently undulating Galway grassland have worn it down to the point where certainty is no longer available.