In the townland of Rathmorrel in north Kerry, a large circular earthwork once existed that is now entirely gone, leaving no ridge, no hollow, no crop mark visible to the passing eye. It is a site defined almost entirely by absence.

The enclosure appeared on the Ordnance Survey map of 1842, where it was recorded as a substantial circular feature, the kind associated with a rath, an early medieval ringfort typically used as a farmstead and defended by one or more earthen banks and ditches. By the time the next reliable mapping was carried out, around 1916, the site had already disappeared from the record. What the 1842 map also suggests is a connection between this enclosure and a nearby site to its northwest, the two apparently linked by a bohareen, a narrow rural lane or track, a detail that implies the two places functioned in some relationship to one another, perhaps as neighbouring farmsteads or as part of the same small settlement. Whether the bohareen itself survives in any form is not recorded. No surface trace of the ringfort remains today, meaning the land has been levelled, ploughed, or otherwise altered so thoroughly that even the earthworks that once defined it have been absorbed back into the field system around them.