A cashel is a type of ringfort enclosed by a stone wall rather than an earthen bank, a distinction that tells you something immediate about the ground beneath it: in much of Clare, the limestone bedrock of the Burren and its fringes made stone the natural building material, and the people who constructed these enclosures in the early medieval period, roughly between the fifth and twelfth centuries, simply used what was at hand. Ringforts in general served as farmsteads and defended homesteads for prosperous farming families, and thousands of them survive across Ireland in varying states of preservation.

Poulgorm itself is a small townland, and the cashel there belongs to a broader pattern of early medieval settlement across Clare, a county unusually rich in stone enclosures precisely because the geology made earthwork construction less practical in many areas. Beyond its classification and location, the specific history of this particular site, its dimensions, its condition, any finds or features associated with it, remains to be fully documented in accessible form.