It is not dramatic to look at, but what remains of it belongs to a tradition of rural enclosure that shaped the Irish countryside for well over a thousand years. This is a rath, the most common type of ringfort, a circular area of ground enclosed by one or more earthen banks and ditches, used in early medieval Ireland primarily as a farmstead and place of shelter for people and livestock.

The Gortduff example is subcircular in plan, measuring approximately 26 metres north to south and 24 metres east to west, which places it at the modest end of the scale for such monuments. At the northern arc, traces of inner stone-facing survive within the earthen bank, a detail that hints at the effort once invested in its construction, when a combination of earth and stone was used to create a solid, defensible perimeter. The southern section tells a different story: the bank there has been quarried away, presumably for building material or field clearance at some point in the post-medieval period, and several further gaps have opened up through more recent disturbance. What remains is fragmentary enough that the overall form only becomes legible when you understand what you are looking at.