Carrauntoohil is the central peak of the MacGillycuddy's Reeks range, and has three major ridges.
A narrow rocky ridge, or arête, to the north, known as the Beenkeragh Ridge, contains the summit of 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 unnamed south-easterly ridge, or spur, leads down to a col where sits the top of the Devil's Ladder (the classic access route for Carrauntoohil from the Hag's Glen), but then rises back up to Cnoc na Toinne 845 m (2,772 ft), from which the long easterly ridge section of MacGillycuddy's Reeks is accessed.

Carrauntoohil overlooks three U-shaped valleys, each of which containing their own lakes.
To the east of Carrauntoohil is the Hag's Glen (Irish: Com Caillí), to the west is Coomloughra (Irish: Chom Luachra, lit.
 'hollow of the rushes'), and to the south is Curragh More (Irish: Currach Mór, lit.
 'great marsh').

Carrauntoohil has a deep corrie, known as the Eagle's Nest, at its north-east face, which is accessed from the Hag's Glen, and rises up through three levels.
At the top, the third level, is Lough Cummeenoughter, Ireland's highest lake.
The Eagle's Nest gives views of the gullies on Carrauntoohil's north-east face: Curved Gully, Central Gully, and Brother O'Shea's Gully.
Sometimes the term Eagle's Nest is used to refer to the small stone Mountain Rescue Hut that sits on the first level of the corrie, where the Heavenly Gates descent gully meets the Eagle's Nest corrie.

Carrauntoohil is the highest mountain in Ireland on all classification scales.
It is the 133rd-highest mountain, and 4th most prominent mountain, in Britain and Ireland, on the Simms classification.
Carrauntoohil is regarded by the Scottish Mountaineering Club (SMC) as one of 34 Furths, which are defined as mountains above 3,000 feet (910 m) in elevation and meeting the SMC criteria for a Munro (i.e. "sufficient separation"), and which are outside (or furth), of Scotland; this is why Carrauntoohil is also referred to as one of the thirteen Irish Munros.

Carrauntoohil's larger prominence qualifies it to meet the P600 classification and the Britain and Ireland Marilyn classification.
Carrauntoohil is the highest mountain in the MountainViews Online Database, 100 Highest Irish Mountains.
Carrauntoohil is the central peak of the MacGillycuddy's Reeks range, and has three major ridges. A narrow rocky ridge, or arête, to the north, known as the Beenkeragh Ridge, contains the summit of 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 unnamed south-easterly ridge, or spur, leads down to a col where sits the top of the Devil's Ladder (the classic access route for Carrauntoohil from the Hag's Glen), but then rises back up to Cnoc na Toinne 845 m (2,772 ft), from which the long easterly ridge section of MacGillycuddy's Reeks is accessed.
Carrauntoohil overlooks three U-shaped valleys, each of which containing their own lakes. To the east of Carrauntoohil is the Hag's Glen (Irish: Com Caillí), to the west is Coomloughra (Irish: Chom Luachra, lit. 'hollow of the rushes'), and to the south is Curragh More (Irish: Currach Mór, lit. 'great marsh').
Carrauntoohil has a deep corrie, known as the Eagle's Nest, at its north-east face, which is accessed from the Hag's Glen, and rises up through three levels. At the top, the third level, is Lough Cummeenoughter, Ireland's highest lake. The Eagle's Nest gives views of the gullies on Carrauntoohil's north-east face: Curved Gully, Central Gully, and Brother O'Shea's Gully. Sometimes the term Eagle's Nest is used to refer to the small stone Mountain Rescue Hut that sits on the first level of the corrie, where the Heavenly Gates descent gully meets the Eagle's Nest corrie.
Carrauntoohil is the highest mountain in Ireland on all classification scales. It is the 133rd-highest mountain, and 4th most prominent mountain, in Britain and Ireland, on the Simms classification. Carrauntoohil is regarded by the Scottish Mountaineering Club (SMC) as one of 34 Furths, which are defined as mountains above 3,000 feet (910 m) in elevation and meeting the SMC criteria for a Munro (i.e. "sufficient separation"), and which are outside (or furth), of Scotland; this is why Carrauntoohil is also referred to as one of the thirteen Irish Munros.
Carrauntoohil's larger prominence qualifies it to meet the P600 classification and the Britain and Ireland Marilyn classification. Carrauntoohil is the highest mountain in the MountainViews Online Database, 100 Highest Irish Mountains.
Carrauntoohil