This is a cashel, the term used for a ringfort built from stone rather than earthen banks, and this one at Drumcaran Beg measures roughly 26 metres across. What makes it quietly puzzling is how thoroughly it has been reduced. The wall survives most clearly on the western side, where the spread reaches about four metres wide and rises no more than 0.7 metres on the exterior face, but a large section to the east has disappeared entirely. No entrance is visible, and no facing stones remain to give a sense of how the original structure was dressed or finished.

Ringforts of this kind were typically built during the early medieval period, from roughly the sixth to the twelfth century, and served as enclosed farmsteads for a single family or household. The cashel form, using the limestone so abundantly available across the Burren and surrounding karst regions, was a practical adaptation to local geology. What survives at Drumcaran Beg is largely a stone spread, the collapsed and scattered remnant of what was once a more substantial circular wall. Approximately 120 metres to the east, another enclosure was once recorded, though it has since vanished entirely from ground level, leaving this cashel as the only visible trace of what may have been a small cluster of enclosed settlements on this patch of upland ground.