At Rathcolman in County Westmeath, a ringfort that survived for well over a millennium as a low earthen enclosure on a gentle rise in pasture was levelled in 1984, and today nothing of it remains visible above the ground. No bank, no fosse, no entrance. Aerial photography confirms a smooth, unremarkable field where the monument once sat. What makes the site worth noting is precisely that disappearance, and the legal wrinkle it created: a Preservation Order was placed on the subsurface remains after the levelling, meaning that whatever lies beneath the grass is protected even though the structure that once marked its location is gone.

Ringforts, sometimes called raths, are among the most common archaeological monument types in Ireland. They were typically enclosed farmsteads of the early medieval period, their circular or oval interiors ringed by one or more earthen banks and external ditches, known as fosses, which defined the boundary of a family's domestic space. The Rathcolman example was modest by any measure. When it was recorded in 1980, it measured roughly 24 metres from north-east to south-west and 22 metres from north-west to south-east, with a low wide bank and a shallow fosse still legible along the southern arc. Even then the site was showing signs of trouble: digging had disturbed the western and north-western perimeter, the ground to the east and west was uneven with further disturbance, and no trace of the original entrance remained. The revised 1913 Ordnance Survey 25-inch map had captured the oval earthwork while it was still intact enough to be mapped, and faint cultivation ridges running east to west were visible inside the interior as late as that 1980 survey, suggesting the enclosed ground had at some point been worked as garden or tillage ground rather than simply left as a yard.