Drainage channels cut across the ground around it, and yet the monument itself has survived, its outline still legible from the air as a ring defined by a fosse, an earthen bank, and a second outer fosse. A fosse is simply a ditch, and the presence of two of them, one inside and one outside the bank, speaks to a structure that was once deliberately and carefully bounded. The overall external diameter runs to roughly 60 metres, with an internal diameter of approximately 40 metres, making it a considerable presence in the landscape even if it reads today as little more than a subtle rise and fall in a soggy field.

The site at Cregganmacar presents archaeologists with a genuine puzzle of classification. The "barrow" label suggests a prehistoric burial mound, a form found widely across Ireland, typically earthen and circular in plan. But the scale here gives pause. At 60 metres across, the monument falls at the larger end of what one would expect for a barrow, and the raised platform character of the earthwork raises the possibility that it could instead be a ringfort, the kind of enclosed farmstead that was common in early medieval Ireland, sometimes built up on a raised earthen platform precisely to keep the interior dry in low-lying terrain. A post-1700 field boundary, running north to south, has since cut through the western quadrant of the monument, partially obscuring its form on the ground. Earlier aerial photography, however, captures the monument's western arc intact before that boundary intruded, confirming the full circularity of the original plan.

The site is not easily visited in any conventional sense. The flat, poorly drained character of the land means the earthwork is more apparent from above than from ground level, and its significance lies largely in what aerial imagery reveals rather than in anything dramatic that presents itself to a casual walker.