The feature is a rath, the Irish term for a ringfort, which was the most common form of rural enclosure in early medieval Ireland, typically a circular area defined by an earthen bank and ditch within which a farming family would have lived. This particular example sits quietly in level ground near Castletown, its circular form measuring roughly 34.8 metres north to south and 34.2 metres east to west, making it a modestly proportioned but well-preserved specimen of its type.

What survives today is primarily the scarped edge, a steeply cut earthen rim rising to around two metres in height and about three metres in width, that traces the perimeter of the original enclosure. Along the north-western to northern arc, this scarp has been softened by time and vegetation, with trees and dense bushes growing along its line, lending that section a thicker, almost hedgerow-like appearance. The interior, by contrast, is level and unremarkable to the casual eye, lying under ordinary pasture grass. The site was recorded and compiled by Denis Power, with notes uploaded in August 2011, forming part of a broader effort to document such earthworks before agricultural pressure erodes them further.

The scarp has been worn down at several points around its circuit where cattle have repeatedly crossed into the interior, and this is worth bearing in mind for anyone visiting. The site sits within working farmland, so access would require the landowner's permission. Once inside, the flatness of the interior becomes its own quiet curiosity, a circle of ground that has somehow remained level and largely undisturbed while the surrounding field carries on its ordinary agricultural life. The tree-lined northern arc is the most visually legible section of the perimeter and gives the clearest sense of the original circuit.