These kinds of nested arrangements, one enclosure sitting within another, are unusual enough to invite curiosity, and this one carries the particular ambiguity that makes early Irish field monuments so difficult to pin down.

The outer enclosure is subdivided internally by a north-to-south bank, a relatively uncommon feature that splits the available space into portions of noticeably different sizes. The eastern and smaller portion is largely taken up by a circular sub-enclosure, measuring roughly 12.4 metres north to south and 12 metres east to west, defined by a bank about three metres wide. The bank itself stands only 0.4 metres above the interior ground surface but rises to 1.3 metres when measured from outside, suggesting the interior was slightly hollowed or that the surrounding ground level has changed over time. Whether the circular feature functioned as a subsidiary enclosure within a larger agricultural or defensive complex, or whether it represents the remains of a small circular dwelling of the kind common across early medieval Ireland, remains an open question. Circular houses defined by low earthen banks of broadly this scale are well attested in the Irish archaeological record, though without excavation it is rarely possible to say more than that.