Volcanoes

There are lots of old extinct, volcanoes in Ireland. These range in age from the underwater volcanoes in Counties, Waterford and Wicklow (480 million years ago) to the volcanoes that erupted to form the Giant's Causeway in Co. Antrim (55 million years ago). There are lots of volcanic rocks present near Limerick and Counties Mayo and Galway. This shows that here, in Ireland we did have a past with volcanoes and volcanic eruptions.