The rath at Tullyvoghan in County Clare is one of these, a circular earthwork enclosure whose presence in the landscape quietly outlasted the early medieval farming community that raised it, probably somewhere between the sixth and tenth centuries. A rath, to use the Irish term, is essentially a defended farmstead, a roughly circular area enclosed by one or more earthen banks and ditches, within which a family and their livestock would have sheltered. The bank was never purely military in purpose; it marked status and ownership as much as it offered protection.

Clare is particularly dense with such monuments. The county's varied geology, from the limestone karst of the Burren to the lowland pastures further east and south, supported substantial early medieval settlement, and the ringforts that survive here represent the ordinary infrastructure of that world rather than anything exceptional. Tullyvoghan itself is a townland name of Irish origin, and like most Irish townland names it carries a compressed local geography within it, though the ringfort would predate any of the administrative boundaries that now frame it. These enclosures were typically home to a single extended family of the class known as the bóaire, a free farmer of middling rank in the early Irish social order, and the bank and ditch surrounding the interior would have been topped with a wooden palisade now long vanished.