At Dooneens in County Cork, what remains of an early medieval enclosure is little more than a gentle swell in the ground, a slight and easy-to-miss rise in the pasture that marks where an earthen rampart once stood. A ringfort, or rath, was a roughly circular enclosure defined by one or more banks and ditches, typically built during the early medieval period as a farmstead or defended homestead. This one has been levelled almost completely, its outline surviving less in the land itself than in the historical record.

The 1842 Ordnance Survey six-inch map shows the site clearly, drawn as a hachured circular enclosure, the standard cartographic shorthand of the period for an earthen mound or raised feature. By the time P. J. Hartnett recorded the site in 1939, the physical presence had already diminished considerably. He noted that the rampart was indicated only by a rising of the field level, and estimated the enclosure's diameter at approximately ninety feet. The eastern side had already been cut into by a laneway, clipping the circuit of the original bank. What the map preserved as a legible shape, the landscape had quietly been erasing for decades, possibly longer.