This is an account of a small excavation at a settlement site indicated by a sunken road, house platforms and a paved spring pool. The excavations showed that there had been two major periods of occupation, Iron Age to Romano-British and Mediaeval to c. 1850. The finds have been deposited in the City Museum at Bristol.

Poll Ballynahown is situated on the western side of Knockauns near Poulomega. It was opened up, explored and surveyed by the University of Bristol Spelaeological Society in July 1968. The cave consists of a single, meandering stream passage which courses S.S.W. for 1,480 ft. to “Choir Chamber”. From here the stream turns sharply and follows the 16° joint for 345 ft. to a 70 ft. pitch. A further 228 ft. of meandering stream passage, at the bottom, terminates in a sump. The total length of the system is 2,085 ft. and the depth about 250 ft.

The very heavy rain on July 10th, 1968, produced a temporary lake at the swallet and adjacent area of G.B. Cave. Considerable damage was caused and while much material was washed through the cave large amounts were also brought in. Major changes in the cave took place.