The ringfort at Listobit, on a south-facing slope of a low ridge in County Longford, does the opposite. It has effectively ceased to exist as anything a visitor could see, touch, or photograph. What was once a rath, a type of enclosed farmstead common across early medieval Ireland, defined by a circular bank of earth and stone and an outer fosse or ditch, has been progressively erased by agricultural levelling until nothing remains visible at ground level. The monument's interest now lies almost entirely in its disappearance.

The site was not recorded on the Ordnance Survey six-inch maps of either 1837 or 1887, which suggests it was already in poor condition or simply overlooked during those surveys. By 1976, when it was examined and noted in an archaeological report, the structure was described as largely levelled, though the outline of the bank and its external fosse could still be traced enclosing a roughly circular area of approximately 32 metres in diameter, a fairly typical size for a rath of this kind. In the decades since that record was made, further levelling has removed even those faint traces. The slope at Listobit now holds no surface sign that a family once lived within a defended enclosure here, going about the daily routines of early Irish rural life.