There is no bank, no ditch, no hollow in the ground. What remains is cartographic, a memory held in ink on old Ordnance Survey maps rather than in earth and stone.

A ringfort, or rath, was a roughly circular enclosure typically defined by one or more earthen banks and ditches, used in early medieval Ireland most commonly as a farmstead or defended homestead. The Pollnamal example was recorded on the first edition of the OS six-inch map with hachures, the fine radiating lines surveyors used to suggest raised or banked ground, indicating a diameter of around thirty metres. By the time the third edition was produced in 1932, the convention had changed and the enclosure was shown with a solid line, its diameter apparently recorded at around twenty-five metres. Whether that slight reduction reflects genuine deterioration between surveys, a difference in measurement method, or simply a change in draughting practice is impossible to say now. What the 1932 map captured, in any case, was close to the last traceable form of the site. No visible surface trace survives today.