Dense blackthorn and brambles have colonised the enclosed ground so thoroughly that no one has been able to examine what lies within. The perimeter is ringed by hazel, ash, and oak, and heaps of field clearance debris sit at intervals around the outside, the accumulated discards of farming generations who worked around the feature rather than through it.

The structure is a rath, the Irish term for a ringfort, one of the most common early medieval monument types in the Irish landscape. Typically dating from roughly the fifth to the twelfth centuries, raths were circular enclosures defined by earthen banks and ditches, used as farmsteads and homesteads by farming families of varying social rank. This particular example measures an estimated thirty to thirty-five metres in diameter, with an earth and stone scarp rising between one and one point three metres on most sides, though slightly lower on the eastern arc. On the northern side, the scarp has been absorbed into a later field boundary, a common fate for these monuments as agricultural landscapes reorganised themselves across centuries. A further detail that sets this site in context: two conjoined raths lie approximately two hundred metres to the south, suggesting this corner of Annagh once held a cluster of related enclosures, perhaps associated farmsteads or a grouping with some social or familial significance.

The post and wire fencing that now encircles the rath marks it off from the surrounding pasture, but the real barrier to closer inspection is the vegetation itself. The blackthorn in particular, a shrub long associated in Irish folklore with boundary and protection, has effectively sealed the interior from view. Whatever the level ground beneath it conceals, it remains, for now, the private business of the brambles.