It sits in reclaimed pasture, measuring roughly 43 metres on its northwest-to-southeast axis and 30 metres across, and it has never appeared on Ordnance Survey historic mapping. That absence alone sets it apart from the majority of recorded monuments, which tend to leave at least some trace across the long sequence of Irish cartographic record. Whether this earthwork is genuinely ancient or something far more recent is, as things stand, an open question.

The site came to official attention through the Bruff aerial photographic survey of 1986, when it was identified from the air as a roughly rectangular-shaped earthwork, recorded under reference Bruff 73(01): AP 4/3681. Aerial survey of this kind, which can reveal crop marks, soil discolourations, and subtle surface irregularities invisible at ground level, has been responsible for identifying a considerable number of previously unrecorded sites across Ireland. Subsequent satellite imagery from a Digital Globe orthophoto taken between 2011 and 2013 confirmed the rectangular shape, but by March 2017 only vague traces remained visible on Google Earth imagery. Compounding the uncertainty, researchers Alison McQueen and Vera Rahilly, who compiled the record in July 2020, noted that linear earthworks in the same field may be connected to post-1700 land reclamation activity rather than any earlier human settlement. The site sits in close company with at least two other recorded enclosures, one immediately to the northeast and others at roughly 45 metres to the west-northwest and 70 metres to the northeast.

For anyone interested in visiting, the location is in the Knockseefin foothills, accessible via the rural road network south of Bruff. Because the earthwork sits in private farmland and its features are subtle at best, it is the kind of site best approached with prior study of the available aerial imagery rather than an expectation of dramatic ground-level remains. The rectangular outline, faint as it now appears, reads more clearly from above than on foot, and the surrounding pasture offers little in the way of obvious surface indication. Visiting during late spring or early summer, when differential crop or grass growth sometimes accentuates buried features, offers the best chance of seeing anything at all.