The Mountains of Ireland is a common name for the hilly areas of the Ireland Island, the second-largest of the British Isles in northwestern Europe, on which the country Republic of Ireland and Northern Ireland, part of Great Britain, are located. The main feature of these mountains is that they are located mainly on the picturesque rugged rocky shores of an island with huge cliffs that plunge into the sea. This makes many of them excellent viewpoints on the open sea at relatively low altitudes, which means accessibility. For the same reason, they constitute all sorts of peak bagging lists such as 100 Highest Irish Mountains, 406 Irish Arderins, 273 Irish Vandeleur-Lynams, and others. In total, there are 2882 named mountains in the Mountains of Ireland. The highest and the most prominent mountain is Carrauntoohil (1,038.6 m / 3,407 ft), a part of MacGillycuddy's Reeks range, the main one in the region, on the Iveragh Peninsula of Ireland Island.