A cashel is a type of ringfort built from dry-stone walling rather than earthen banks, and thousands of them survive across Ireland, most dating to the early medieval period, roughly between the fifth and twelfth centuries. They served as enclosed farmsteads, the stone walls encircling a household and its outbuildings, marking both territory and status in a society organised around cattle and kinship.

What is notable about the Curraghkilleen cashel is precisely how little is currently documented about it in accessible sources. County Clare is a county with a particularly dense concentration of such monuments, owing in part to the limestone-rich geology of the Burren and its surrounds, which made dry-stone construction both practical and durable. The cashels of this region have survived in varying states of preservation, some nearly complete, others reduced to low circular footings barely distinguishable from the field walls that have grown up around them over the centuries. Without further detail on record, this particular example remains something of an outline, a shape on the ground waiting for closer attention.