A rath, as these earthen enclosures are commonly known in Ireland, was typically a circular banked and ditched enclosure used as a farmstead during the early medieval period, home to a family and their livestock. The one at Lyradane measures approximately twenty metres in diameter, which places it at the modest end of the scale, and today there is no visible surface trace of it whatsoever.

What makes this site quietly compelling is the paper trail of its vanishing. On the Ordnance Survey six-inch map of 1904, the enclosure appears as a hachured circle, the standard cartographic shorthand for a raised earthwork. By the 1938 edition of the same map series, the confident circle has been reduced to a broken arc running from the south-west to the south-east of the site, suggesting that by then much of the bank had already been levelled, ploughed out, or otherwise lost. Sometime between those two surveys, a recognisable monument became a partial outline, and at some point after that it vanished from the ground altogether. The maps therefore function almost like a slow-exposure photograph of erasure. One detail survives the disappearance of the rath itself: a standing stone recorded immediately to the south-east of the site. The relationship between standing stones and nearby ringforts is not always straightforward, but the proximity here is unlikely to be coincidental, and the stone at least remains as a physical anchor for a site that otherwise exists only in archives and old cartography.