The one at Tullaher, in County Clare, is a rath, the term used for a ringfort constructed from earthen banks rather than stone. These roughly circular enclosures were typically built during the early medieval period, between around the fifth and twelfth centuries, and served as enclosed farmsteads for a single family or small community. The surrounding bank and ditch were less about military defence and more about marking territory, keeping livestock in, and signalling a household's presence in the landscape.

Clare is particularly well supplied with such monuments, sitting as it does in a region where early medieval settlement left deep impressions on the land. Raths like this one at Tullaher would have anchored a farming family to a particular patch of ground, with the enclosure often accompanied by outbuildings, storage pits, and sometimes a souterrain, an underground stone-lined passage used for cool storage or, occasionally, as a refuge. The place name Tullaher itself is worth a moment's attention; townland names in this part of Ireland frequently preserve traces of earlier Gaelic descriptions of the land, its features, or its former occupants, though the precise etymology here would require more specific local research to untangle with confidence.

Because detailed records for this particular site are limited in what is currently available, the finer points of its condition, dimensions, and any associated features remain difficult to establish from a distance. What can be said is that ringforts in agricultural County Clare have survived in varying states, some remaining as clear earthwork rings visible from the road, others reduced to a slight rise or a curved line of scrubby hedgerow. Visiting the Tullaher townland with an eye for subtle changes in ground level, or a ring of older trees following an arc through a field, is often how these sites make themselves known to an attentive walker.