What makes it quietly odd is the way it was built: rather than constructing four walls from scratch, whoever made it used a natural outcrop of rock, rising to about four metres, as the entire north-western boundary. The remaining sides were filled in with a roughly constructed drystone wall, the kind of dry-laid stonework built without mortar, though most of that walling has since collapsed, leaving rubble spilled mainly inward along the south-eastern side.

The enclosure is irregular in shape, running about twenty-five metres on its north-east to south-west axis and ten metres across. A well-defined entrance, less than a metre wide, opens to the north-east. Recorded by Myler in 1998, it sits in boggy ground with views across to the Maughanaclea Hills, which suggests a site long since abandoned to the elements rather than actively maintained. Enclosures of this kind are a broad category in Irish field archaeology, ranging from early medieval farmstead boundaries to small animal pounds or field systems, and the pragmatic decision to incorporate a standing rock face as one wall is not unusual in upland settings where quarrying and dressing stone would have been laborious work.