The Guide to Ireland’s Mountain Summits is the complete guide to Ireland’s 269 mountain summits. These are mountains with an elevation of 600 metres or higher, and are known as The Vandeleur-Lynams.nnnnThere are also listed in the Guide to Ireland’s Mountain Summits 404 mountains of 500m or higher called The Arderins.nnnnThe term Vandeleur-Lynam is based on a list originally compiled in the 1950s by Rev CRP Vandeleur and Joss Lynam. The term Arderin borrows the name from a typical 500m+ summit very central to Ireland in the Slieve Blooms, coming from Ard Eireann, ‘the height of Ireland’.nnnnFor the first time these lists are published, along with lists of Ireland’s 27 County High Points and the island’s Hundred Highest mountains. This is by using updated information compiled by the Mountain Views community. Sixty mountain areas are covered and information for the summits in each area includes the mountain name in English, a possible alternative in Irish, classification, height, and county of location It also includes OS/OSNI map number, map grid reference, and a height rank. This will be an invaluable resource for summiteers and hillwalkers alike.