This is a cashel, the Irish term for a stone-walled ringfort, a type of enclosed farmstead that was common across Ireland during the early medieval period, roughly the fifth to twelfth centuries. Most were domestic in character, the fortified homesteads of farming families, and this one in Creevagh follows that tradition, though the details of its construction reward a closer look.

The enclosure is roughly subcircular, measuring about 37.5 metres east to west and 36.5 metres north to south, and its perimeter wall was built with two distinct faces, an inner and outer skin of stone with a rubble core between them, giving a total width of around 1.4 metres. The inner face on the western side retains some of its original character best, built from fairly large, regularly shaped but undressed limestone blocks. The outer face on the east-south-eastern arc still stands to about a metre in height, constructed from flat slabs and blocks. Much of the rest has collapsed into low, mossy spreads of stone, between four and six metres wide in places. A narrow entrance gap, just over a metre wide, opens to the south. Inside, the ground is level in the southern half but slopes away towards the north and northwest. A wall running roughly west-northwest to east-southeast crosses the interior near the centre, appearing to be an early feature rather than a later addition, and a raised suboval platform in the southwestern sector, tucked against the cashel wall, may represent the remains of a structure. A more recent field wall has been built directly onto the outer face along the eastern arc, a reminder that later farmers found the old boundary useful long after its original meaning was forgotten. The site appears on the Ordnance Survey six-inch map from 1842, which means it was already a legible feature in the landscape nearly two centuries ago.