Leinster in the east and southeast of Ireland is a land of rocks that spell out the Palaeozoic history of Britain and Ireland, revealing a north/south divide. This highly accessible introductory guide encompasses this fascinating region and also embraces the Waterford coast, where the Ordovician volcanic rocks were described by Geikie as displaying 'perhaps the most wonderful series of volcanic vents within the British Islands'.. This book explains the geology of Leinster and leads the geological tourist to the more accessible sites and outcrops revealing its history.