A rath is a ringfort, the most common type of monument surviving in the Irish countryside, typically consisting of a raised circular area enclosed by one or more earthen banks and ditches. They were built predominantly during the early medieval period, roughly between the fifth and twelfth centuries, and served as farmsteads and enclosures for farming families of varying social rank. Ireland has tens of thousands of them, yet each occupies a specific patch of ground with its own micro-history, and the one at Gortglass is no exception.

The townland name Gortglass derives from the Irish, broadly meaning "green field" or "green enclosure", a placename type often associated with fertile or well-used agricultural ground, which is consistent with the kind of location early medieval communities tended to choose for these enclosures. Kerry itself has a dense distribution of ringforts, reflecting the county's long-settled agricultural past, and many survive in reasonable condition simply because Irish farmers historically treated these earthworks with considerable respect, partly from a practical reluctance to disturb them and partly from a folk belief associating them with the otherworld and with the fairy mounds of Gaelic tradition. That cultural memory, as much as anything else, is why so many still break the surface of Kerry fields today.

Beyond its presence in the landscape of Gortglass, the specific details of this particular site, its dimensions, condition, any features identified within or around it, remain to be set out in fuller published form. What can be said is that it belongs to a category of monument that quietly dominates the Irish countryside, easy to overlook and easy to misread as a natural feature, but representing a direct and largely unbroken physical link to the farming communities of early medieval Ireland.