This fort is found in the middle of the island south of the village of Eochaill from which it gets its name. Eochaill meaning Yew wood. The fort is circular and consists of two terraced walls. Exact dates are not known but it is thought to be somewhat later than Dún Aonghasa possibly late Iron Age. It is easily accessed from the main road. Nearby are the remains of an early nineteenth century Light House which while on the highest point of the island was too badly placed to ever have been of any effective use.