The example at Carrowmoremoy, in County Mayo, is one such site, a rath sitting in the townland whose Irish name most likely derives from an older placename rooted in the word for a rounded or lumpy ridge of land. A rath, broadly speaking, is a roughly circular enclosure defined by one or more earthen banks and ditches, built primarily during the early medieval period, roughly between the fifth and twelfth centuries, and used as a defended farmstead or settlement by a family of some local standing.

Ringforts of this kind were the basic unit of rural settlement in early medieval Ireland. The banks were not fortifications in any military sense but rather markers of status and practical barriers against livestock straying or predators entering. Inside, a typical rath might have contained a timber or wattle house, outbuildings, and a yard. The townland name Carrowmoremoy places this site within the broader landscape of north Connacht, a region with a dense concentration of such monuments, many of them still visible as low earthworks in pasture fields, their circularity catching the eye from an elevated vantage point or in the low light of a winter afternoon when shadows exaggerate the ground's faint geometry.

Beyond its classification and location, detailed information about this particular site, its dimensions, condition, any finds associated with it, or the history of its recording, remains to be confirmed from primary sources.