With a name that translates as 'Bright Stone', Cahergall Stone Fort is an Iron Age ringfort, originally built around the 7th century. The reconstructed structure has an outer dry stone wall measuring up to 4 metres high and 5 metres thick, accessed by several stairways on the inner side of the wall, along with the remains of a circular building.

Ireland has thousands of similar ring forts of differing sizes. They are thought to have been used as fortified residences or farmsteads.