Burren, County Clare. Poulnabrone Dolmen is a portal tomb dating back to the Neolithic period, probably between 4200 BC to 2900 BC. It is situated 8km south of Ballyvaughan. The dolmen consists of a twelve-foot, thin, slab-like, tabular capstone supported by two slender portal stones, which lift the capstone 1.8m from the ground, creating a chamber.
The tomb was likely a centre for ceremony and ritual until well into the Celtic period or it may have served as a territorial marker in the Neolithic landscape.