It measures roughly 43 metres north to south and 42 metres east to west, enclosed by a raised earthen bank that rises about 1.2 metres on its inner face and a more substantial 3 metres on the outside, with a fosse, a defensive ditch, running around it to a depth of 1.6 metres. The northeastern to northwestern arc is where the structure survives best, giving a clear sense of what the full circuit would once have looked like.

This is a rath, the Irish term for an earthen ringfort, a form of enclosed farmstead that was built and occupied predominantly during the early medieval period, roughly between the fifth and twelfth centuries. Thousands of them survive across Ireland in varying states of preservation, though many have been levelled by centuries of ploughing or land improvement. A rath like this one would originally have enclosed a farmhouse and ancillary buildings, the earthen bank and fosse serving less as military fortification and more as a marker of status and a practical barrier against livestock theft. The combination of a substantial external height differential, nearly two metres between the inner and outer faces of the bank, and the accompanying fosse suggests this was a reasonably well-constructed example, built by someone with the means and labour to do it properly.

The setting above the River Bride adds a layer of logic to the siting. South-facing slopes offer better drainage and more sun, practical considerations for early farmers as much as for anyone else, and a position overlooking a river valley would have provided both a reliable water source and a useful vantage point over the surrounding land.