Where a typical ringfort relies on raised earthworks and ditches to define its boundary, a cashel uses dry-stone walling, and Clare, sitting on the limestone-rich Burren and its fringes, is well-suited to that kind of construction. The name Caherlean itself likely preserves the Irish word for a stone fort, which suggests the site made enough of an impression on the local landscape to shape the very place-name around it.

Cashels of this kind were built predominantly during the early medieval period, roughly between the fifth and twelfth centuries, and functioned as enclosed farmsteads for the Gaelic farming class. They were not military fortifications in any grand sense, but rather domestic compounds, protecting livestock and family from the ordinary hazards of rural life. Clare has a notable concentration of such sites, partly because the stone was so readily available and partly because the county saw continuous Gaelic settlement patterns well into the later medieval period. The specific history of this particular cashel, its builders, the family or sept associated with it, and any finds or features recorded within its walls, remain matters for further investigation.