In a pasture at Creevaghmore, Co. Longford, a ringfort sits on a low rise in the landscape, and yet a visitor standing on top of it would have no reliable way of knowing they were there at all. The monument, as recorded, is not visible at ground level.

A rath, to give it its Irish term, is a type of early medieval enclosed farmstead, typically defined by one or more circular earthen banks and ditches surrounding a domestic space. They are among the most common archaeological monuments in Ireland, numbering in the tens of thousands, though that familiarity does not make them unremarkable. The Creevaghmore example, documented in a 1976 field report, measured roughly 38 metres west-northwest to east-southeast and about 35 metres north-northeast to south-southwest, making it a reasonably substantial oval enclosure. It had a low bank of earth and stone, a shallow intervening fosse, which is the ditch that typically runs just inside or outside such a bank, and faint traces of what may have been a second, outer bank. No original entrance could be identified. Centuries of agriculture have levelled what would once have been a legible and inhabited boundary, leaving only the subtlest swell in the field to mark where people once lived.