A magnificent oak tree in Raheen Woods, Tuamgraney, East Clare, is associated with Brian Boru who was reputedly born nearby. The tree is over 1,000 years old with a girth of 26 feet. The tree stands in one of the last surviving sections of Ireland's ancient wild oak forests - the forest of Suidain of the Sliabh Aughty Mountains. The National Monuments Service has listed the tree in its Archaeological Survey as a Ritual Site/ Holy Tree. Photographs of Brian Boru’s Oak are included in the Archaeological Monuments of Clare Collection in Foto, a collection donated to the library by an anonymous donor.