Most raths, as these early medieval enclosures are commonly called, consist of a single earthen bank and fosse encircling a domestic area, but this one presents two concentric banks separated by a fosse, a design that suggests either heightened status or a particular concern with defence. The inner bank still stands to an external height of 3.2 metres, and the outer bank reaches 2 metres on its exterior face, making the earthworks substantial even now, centuries after they were last actively maintained.

What makes the layout especially interesting is the deliberate staggering of the entrances. The gap in the inner bank sits at the south-east, while the corresponding gap in the outer bank is offset to the east-south-east, meaning anyone approaching the interior would have had to navigate a slight chicane rather than walk straight through. This is a recognised feature of more carefully constructed raths and would have added a modest but meaningful obstacle to uninvited entry. Within the enclosure, the archaeology becomes denser still. There is a possible souterrain, an underground stone-lined passage typically used for storage or refuge, as well as the traces of a hut site and, notably, a children's burial ground. Such burial grounds, known in Irish as cillíní, were used in post-medieval times for infants who had died without baptism and were therefore excluded from consecrated ground; their presence here, as at many ringforts across Ireland, hints at the long afterlives these ancient enclosures held in local memory and practice. By the 1840s, the Ordnance Survey noted the site as 'Rahanaan fort', placing it in the centre of its townland, between a feature identified as Darby Hayes's Fort and a trigonometric station.

Today the interior is level but heavily overgrown with briars, and field boundaries that appear to radiate outward from the outer bank have disturbed its eastern, southern, and western arcs. The earthworks themselves, particularly the inner bank with its 3.4-metre width, remain clearly readable on the ground for anyone who picks their way in.