An aerial photograph of the site at Labbacallee captures a cropmark, the faint discolouration that appears in a cereal crop when buried earthworks, a bank and its accompanying fosse or outer ditch, cause the soil to retain or shed moisture unevenly. That arc, running from north to south, is now among the more legible traces of a ringfort whose physical remains have been reduced to a barely perceptible rise across roughly seventy metres east to west and sixty-four metres north to south.

A ringfort, known in Irish as a rath or lios, is a roughly circular enclosed settlement from the early medieval period, typically defined by one or more earthen banks and ditches. This one carries the Irish name Lios Leabba Caille, recorded in that form by the antiquarian John Windele, writing in 1898, who described it as a large round fort with a low, ruinous rampart, its interior at that time given over to wheat. The site had already been under agricultural use long enough by then that its outline was softening. The nineteenth-century Ordnance Survey mapped it twice, first on the 1842 six-inch sheet as a subrectangular enclosure, and again in revised editions of 1906 and 1934 as a nearly oval raised area, the slight differences in described shape likely reflecting both genuine degradation and the varying judgements of individual surveyors working from what was already a muted landform. Today the site is bounded to the north by a field boundary and to the west by a roadway, both of which have come to define its edges as much as any surviving earthwork.