The site is invisible in any meaningful sense unless you happen to be looking down from the right altitude at the right angle of light, which is precisely how it came to be known at all. It is the kind of place that exists more clearly as a photograph than as a physical experience, a trace of human activity that the landscape has quietly absorbed.

The enclosure was identified through aerial photography as part of the Bruff Survey, catalogued as Map 23, Bruff 172, reference AP 4/3710. Martin Doody, writing in 2008, described it as a subrectangular ditched enclosure measuring approximately 50 metres by 45 metres. A ditched enclosure of this kind would originally have been defined by a dug boundary, possibly accompanied by a bank, creating a defined interior space whose purpose might have ranged from settlement to stock management to ritual use. Doody noted that the morphology, meaning the overall shape and proportions of the feature, suggests a possible Bronze Age date, placing its origins somewhere in the broad span between roughly 2500 and 500 BC. The site was compiled by Denis Power and uploaded to record in November 2013, though the aerial photograph that revealed it predates that by some margin.

Because the enclosure survives primarily as a cropmark, its visibility depends almost entirely on seasonal conditions. Cropmarks appear when buried features affect the growth of overlying vegetation; a filled ditch, retaining more moisture than the surrounding soil, can produce a denser or taller line of crops that reads clearly from above in dry summer months but is undetectable at other times of year. Visiting the area around Ballybricken with this in mind is useful preparation: there may be little to see at field level beyond ordinary farmland. Consulting the aerial photograph referenced in the Bruff Survey beforehand gives a clearer sense of the enclosure's scale and position, and helps orientate a visit to the broader landscape of a part of Limerick that holds considerably more buried archaeology than its surface currently suggests.