Cashels are among the most characteristic monuments of early medieval Ireland, constructed roughly between the fifth and twelfth centuries as enclosed farmsteads for a single family or kin group. The stone construction that distinguishes a cashel from its earthen counterpart, the rath, was particularly common in the west of Ireland, where surface stone was plentiful and the labour of building in drystone was well understood. The name of the townland itself, Caherclanchy, contains the Irish word cathair, another term for a stone fort, suggesting that this kind of enclosure shaped not just the physical ground but the place-names layered over it across centuries.

Clare is unusually rich in such monuments. The Burren to the north is famous for its concentration of cashels, but stone-walled enclosures appear across a much wider stretch of the county, embedded in field systems that have themselves shifted and reorganised around them over a thousand years or more. A cashel of this kind would typically have enclosed a dwelling, perhaps ancillary structures for animals or storage, and the whole would have been the centre of a farming household operating within the tuath, the local territorial unit of early Irish society. The walls, which could reach considerable height and thickness, served as much for the management of livestock as for any defensive purpose, though the enclosure also carried social meaning, marking the boundary between a household's ordered space and the world beyond it.