Ringforts, known in Irish as raths, are roughly circular enclosures defined by one or more earthen banks and ditches, and they were the dominant form of rural settlement in early medieval Ireland, roughly between the fifth and twelfth centuries. Several tens of thousands of them are thought to have survived across the island in various states of preservation, yet each one occupies its own particular piece of ground, shaped by whoever chose that spot to build a farmstead, keep livestock, and mark out a family's claim on the land.

The Rehy example is catalogued as a rath, the earthwork variety of ringfort rather than a stone-built cashel, which is the form more commonly associated with the limestone landscapes of the Burren further north in Clare. Beyond that classification and its location in the townland, detailed records for this particular site remain sparse at present. What can be said with confidence is that ringforts of this type were working farmsteads rather than defensive fortifications in any military sense, the banks serving to keep animals in and predators out as much as to signal status or security. The internal space would typically have held a house, outbuildings, and storage, the whole arrangement giving a picture of early medieval rural life that is easy to underestimate when the earthworks have softened with age.