Ringforts, known in Irish as raths when constructed from earthen banks and ditches, were the most common form of rural settlement in early medieval Ireland, dating broadly from around the fifth to the twelfth centuries. Thousands survive across the country in varying states of preservation, yet each one occupies a specific piece of ground chosen by a particular farming family for reasons of drainage, visibility, or proximity to resources. The name Garraunnatooha itself carries the texture of the Irish language, likely derived from a combination of words relating to a garden or shrubbery, though the precise etymology is a matter for local study.

The rath at Garraunnatooha belongs to Clare, a county with a dense concentration of early medieval monuments, from the limestone pavements of the Burren to the more quietly farmed lowlands further east and south. A typical rath of this period would have enclosed a farmstead, protecting livestock and family within a raised bank, sometimes reinforced with a wooden palisade, and surrounded by one or more external ditches. The interior might have held a timber or wattle dwelling, outbuildings, and storage pits. What survives above ground today is usually the earthwork itself, the bank worn down by centuries of ploughing, grazing, and weather, occasionally tree-covered or incorporated into a field boundary.