The site sits in a wooded area to the north-west of a farmyard in Derreen, Co. Cork, its circular outline still legible in the landscape even as trees have taken over the interior.

A rath, as ringforts of this earthen type are commonly known, is a roughly circular enclosure defined by one or more banks and ditches, built primarily during the early medieval period as a defended farmstead for a single family or small community. This one measures approximately 29 metres across and is defined by an earthen bank standing about 1.55 metres high, with stone facing applied to the external face on the eastern, southern, and western sides. A gap in the bank to the west likely marks the original entrance. The enclosure was recorded on Ordnance Survey six-inch maps in both 1842 and 1904, and the earlier of those maps also shows a lime kiln positioned on the bank to the north-west, a detail that captures exactly how these ancient structures were treated in the agricultural landscape: not as monuments to be preserved, but as convenient elevations of ground, ready materials, or simply features to be built around.