The structure measures roughly fifteen and a half metres east to west and just over seven and a half metres north to south, with a bank that rises less than a metre above the interior, making it easy to walk past without registering what it once was.

The first recorded description comes from McCaffrey in 1952, who labelled it 'A' on his site plan and characterised it as a rectangular enclosure defined by that low earthen bank. By the time someone visited in June 1983, even that modest profile had largely dissolved; only the foundations remained legible on the ground. It sits within a wider enclosure, and a second structure was also identified in the north-east quadrant of the same site, suggesting this was once a place of some complexity, perhaps a small settlement or farmstead, though its date remains undetermined. Without excavation, it is impossible to say more about who built it or when.