The one at Carrowncalla, in County Clare, is a rath, the term used for an earthen ringfort, typically a roughly circular enclosure defined by one or more banks and ditches. These were the farmsteads of early medieval Ireland, occupied roughly between the fifth and twelfth centuries, and they housed families, livestock, and the routines of agricultural life within a raised perimeter that offered both a degree of protection and a mark of social status.

Clare is particularly rich in such monuments, lying as it does within a landscape that was densely settled during the early medieval period and has seen relatively limited intensive agriculture in certain areas, which has allowed earthworks to survive where they might otherwise have been levelled. The townland name Carrowncalla, like many in the west of Ireland, preserves older Irish-language roots, and the presence of a rath within it points to continuous human occupation of this ground across many centuries. Beyond its classification and location, the detailed record for this particular site has not yet been made widely available, which means the specifics of its dimensions, condition, and any associated features remain, for now, out of easy reach.