At Lissanalta in County Limerick, a ringfort once occupied a gentle north-easterly slope in open, rolling pasture. Today, according to the site record compiled by Denis Power, it is simply gone, levelled to the point where nothing was evident on the ground at the time of inspection. The coordinates remain on the map, and the monument number persists in the database, but the feature itself has been erased from the landscape.

A ringfort, sometimes called a rath, was a roughly circular enclosure typically defined by one or more earthen banks and ditches, used during the early medieval period in Ireland as a farmstead or defended dwelling. Thousands survive across the country in varying states of preservation, and thousands more have vanished through agricultural improvement, land drainage, and simple neglect. The Lissanalta example was recorded on the Ordnance Survey's 1841 map as a circular enclosure with a diameter of approximately 30 metres, modest in scale but entirely typical of the form. That mid-nineteenth-century mapping is often the last clear evidence of such features, caught at a moment before intensive land use accelerated in the decades that followed.

There is, practically speaking, very little to observe at this site. The surrounding terrain is undulating pasture, and without any visible earthwork remaining, the location offers none of the usual visual cues a visitor might follow. The value of coming here, if there is one, is more conceptual than anything else: standing on an unmarked slope in Limerick and knowing that an early medieval enclosure once occupied this precise spot, that farming life organised itself within a circle here over a thousand years ago, and that the only surviving trace is a ring of ink on a 180-year-old map. The 1841 Ordnance Survey sheets are freely accessible through various online archives and can help orient a visitor to the approximate location, though the ground itself will offer no confirmation.