The rath at Graigacurragh sits in pasture on the northern edge of a break in a north-facing slope in County Limerick, and its interior is now so thickly colonised by flag irises that the circular form of the place is far easier to appreciate from the air than from the ground. A rath, sometimes called a ringfort, is an early medieval farmstead enclosed by an earthen bank and a surrounding ditch, and they are among the most common field monuments in Ireland, yet each one has its own character. This one has largely surrendered to the marsh plants that followed the water into its low-lying ditch.

The site forms a roughly circular area approximately forty metres in diameter, enclosed by an earthen bank with an external fosse, the ditch that originally reinforced the defensive effect of the bank. The fosse is about two metres wide and one metre deep, though it is now blanketed with rushes, flag irises, and nettles. The bank itself stands to an internal height of roughly 0.4 metres and an external height of 1.6 metres; that difference reflects how the excavated material from the fosse was piled inward to create the enclosure wall. Heavy overgrowth masks much of the circuit, but the western side preserves the bank in its best condition. The site was recorded and compiled by Denis Power, with aerial photographs taken in October 2002 as part of the Archaeological Survey of Ireland record.

Access is through farmland, so landowner permission should be sought before approaching. The flag irises that fill the fosse and much of the interior are most dramatic in late spring and early summer when in flower, which does at least make the line of the ditch easier to trace visually. The grassy clearing in the northern third of the interior offers the clearest sense of the level ground that would once have been the functional heart of the enclosure. The western bank is the most rewarding section to examine closely, where the earthwork retains enough height to give a real sense of the original scale of the construction.