A ring barrow is a burial mound of the Bronze Age or earlier, typically consisting of a low central mound enclosed by a circular ditch and, often, an outer bank. They were places of interment for the dead, and sometimes for the repeated deposition of cremated remains over generations. This one, like so many of its kind across Ireland, is easily overlooked by those who do not know what they are looking at, the slight rise and encircling depression readable as something meaningful only once you understand the form.

Clare has a dense prehistoric record, and the presence of a ring barrow at Annagh fits into a broader pattern of Bronze Age communities marking their dead across the county's varied terrain. Without more detailed excavation records or historical documentation specific to this site, little can be said with confidence about who was buried here, when exactly the monument was raised, or what objects, if any, were placed alongside the dead. What can be said is that the form itself, that combination of mound, ditch, and bank, was a considered architectural choice, one that distinguished this ground as set apart from the ordinary landscape around it.