It exists, as far as anyone can tell, only from the air. The enclosure was identified solely through aerial photography, a method that has revealed countless features of the Irish landscape that centuries of vegetation, soil movement, and plantation forestry have quietly buried from view.

The site was flagged as a possible monument by Paul Walsh of the Ordnance Survey in May 2005, based on crop or vegetation marks visible in aerial photographs. These kinds of enclosures, broadly circular or oval boundaries that may once have defined a settlement, a farmstead, or a ritual space, are among the most common early medieval monument types in Ireland, though their precise function varies considerably from site to site. This one has not been confirmed through excavation or survey at ground level, which places it in the category of the tentative rather than the established. What gives the location a particular texture is its neighbourhood: a ringfort, another type of enclosed early settlement typically defined by an earthen bank and ditch, sits roughly 650 metres to the north-east, and a second enclosure lies around 700 metres to the south-west. That cluster of related features across the Ballyglasheen landscape suggests this was once a well-populated or carefully organised stretch of countryside, even if the plantation trees have long since swallowed the evidence.