These circular enclosures, known in Irish as raths, were the farmsteads of early medieval Ireland, typically dating from around the fifth to the twelfth century. A bank and ditch defined the boundary of a family's domestic world, enclosing a house, outbuildings, and sometimes a souterrain, an underground passage used for storage or refuge. Clare has hundreds of them, some well-documented, others barely noticed by passing traffic.

Knockaluskraun is one of those place names that carries its own quiet history. The Irish townland system, still the basic unit of rural geography across Ireland, preserves in its names traces of landscape features, family territories, and long-vanished land uses. The rath at Knockaluskraun falls into a category of sites whose physical presence in the field outlasts the documentary record attached to them. Without surviving written sources tying a particular enclosure to a named family or a datable event, these sites speak mainly through their form, their siting, and the slight rise of ground that marks where the bank once stood.