The one at Emlagh in County Clare is a case in point: a rath, which is the Gaelic term for a roughly circular earthwork enclosure, typically formed by one or more banks and ditches, and used during the early medieval period as a farmstead or the defended residence of a local landowner. These structures date broadly from around the fifth to the twelfth centuries, and Clare has a particularly dense concentration of them, a reflection of the county's long and layered occupation.

The Emlagh example sits quietly in the townland that shares its name, neither celebrated nor explained by any accessible public record at present. What can be said with confidence is that raths of this kind were domestic rather than military in the modern sense; the enclosure offered status and a degree of protection for a farming family and their livestock rather than any serious fortification. The earthen banks, where they survive, often still rise a metre or two above the surrounding ground, and the interior, once the site of timber or wattle structures, is now usually just rough pasture. The placename Emlagh itself, derived from the Irish imleach, suggests a place on the edge of a lake or wet ground, which hints at the kind of marginal, water-adjacent terrain that early medieval settlers sometimes favoured for settlement.