Somewhere in low-lying pasture in County Longford, the faint outline of a rath, a type of early medieval ringfort typically consisting of an earthen bank and external ditch enclosing a farmstead, has been reduced to a scarp barely twenty centimetres high. Walk across the field and you might not notice it at all.

When a survey was carried out in 1976, the picture was already incomplete but still legible. The rath presented as a raised oval area, roughly 47 metres on its northwest to southeast axis and 43 metres across the other way, enclosed by a low bank of earth and stone with a shallow external fosse, meaning a ditch dug to reinforce the defensive or boundary effect of the bank. Within the southern half of the interior, there was evidence of a possible house site, suggesting the enclosed space had once been a domestic settlement of the kind that would have been common across early medieval Ireland. Even then, the eastern portion had already been lost to quarrying. In the decades since, the remainder has been levelled, the original entrance has become unreadable, and the house site has disappeared entirely from ground level.