| Parish of Rathborney, the Burren|
unknown but likely early Medieval
Ballyallaban ringfort (Irish: Baile Albóin) or sometimes An Rath ("The Rath") is an earthen ringfort south of Ballyvaughan in the the Burren area, in County Clare, Ireland. It is a National Monument of Ireland.
Ballyallaban ringfort Wikipedia
The fort lies right next to the R480 road between the village of Ballyvaughan and Leamaneh Castle. It is located in the townland of Ballyallaban, parish of Rathborney.
The ringfort is sizable with an internal diameter of around 100 feet (200 feet including the moat) and is in good condition, although trees grow on much of the structure. The ramparts were built with the earth dug out of the moat, which still fills with water after rain.
The walls were originally even higher and the moat deeper than they are now. The embankment likely was topped by a wooden palisade.
The national monument number 648 actually consists of two separate forts: the earthen Ballyallaban ringfort and the nearby stone fort of Cahermore.