- Carrauntoohil meaning "Tuathal's sickle” is the highest mountain on the island of Ireland at 1,038.6 metres (3,407 ft). Located in County Kerry, Carrauntoohil is the central peak of the Mac Gillycuddy's Reeks, Ireland's highest mountain range. A narrow rocky ridge, or arête, to the north, known as the Beenkeragh Ridge, summits The Bones (Na Cnámha), and leads to Ireland's second-highest peak, Beenkeragh (Binn Chaorach) at 1,008 m (3,307 ft). The ridge westward, called the Caher Ridge, also an arête, leads to Ireland's third-highest peak, Caher at 1,000 m (3,300 ft). A third and much wider, but unnamed, south-easterly ridge, or spur, leads down to a col where sits the top of the Devil's Ladder and then rises back up to Cnoc na Toinne 845 m (2,772 ft), from which the long easterly ridge section of the Mac Gillycuddy's Reeks is accessed.