What makes it worth pausing over is not any dramatic ruin but a kind of structural restraint: the enclosing bank of earth and stone, measuring about two metres wide and standing just under a metre high on the exterior, has survived with enough coherence to trace its circuit clearly, yet leaves almost no other mark on the landscape. There is no fosse, the surrounding ditch that typically accompanies a ringfort of this type, which makes the site either unusually plain in its original design or simply one that has lost that feature to time and ground movement.

Ringforts, known in Irish as raths when built primarily from earthen banks, were the most common form of enclosed farmstead in early medieval Ireland, in use roughly from the fifth to the twelfth century. They served as protected homesteads rather than military fortifications, their banks and ditches enough to deter livestock theft and mark a family's territory. The Curraghduff example is modest in scale, its interior diameter running about 24.75 metres north to south and 23 metres east to west, with a possible entrance gap of just under three metres on the east-south-east side, the conventional placement that would have faced the morning light and the working landscape below. Notably, there appears to be a second possible ringfort a short distance to the west, which raises the question, unanswered by what survives above ground, of whether two related households once occupied this same upland terrain in proximity to one another.