These circular enclosures, defined by one or more earthen banks and ditches, were the dominant settlement form of early medieval Ireland, typically serving as the farmsteads of free farmers or minor lords between roughly the fifth and twelfth centuries. Most were never military structures in any serious sense; they were farmyards with a boundary, a way of marking territory and keeping livestock in or predators out. The fact that so many survive at all, scattered across Irish fields in their tens of thousands, says something about how thoroughly they became part of the land itself.

Raths are especially numerous in Clare, a county whose varied geology, from the limestone pavements of the Burren to the lower-lying agricultural ground further east and south, supported dense early medieval settlement. The townland name Sheeaun is likely derived from the Irish word for a small fairy mound or hillock, which itself suggests a long local awareness of earthworks in the area, the kind of features that accumulated folk significance over centuries precisely because they were old and unexplained. Whether this particular rath sits on any such rise, or occupies flatter ground, is not recorded here, but the association between ringforts and fairy lore is consistent across Ireland; they were called fairy forts in many districts, and that reputation offered them a degree of informal protection from destruction that official designation could not always match.