page_title: Lists of mountains in Ireland
section_title: General concepts
hierarchical_section_title: Lists of mountains in Ireland / Definitions / General concepts
caption_attribution_description: Français&#160;: Doolough au pied de MweelRea - comté Mayo - Irlande
context_page_description: In these lists of mountains in Ireland, those within Northern Ireland, or on the Republic of Ireland – United Kingdom border, are marked with an asterisk, while the rest are within the Republic of Ireland. Where mountains are ranked by height, the definition of the topographical prominence used to classify the mountain, is noted. In British definitions, a height of 600 metres is required for a mountain, whereas in Ireland, a lower threshold of 500 metres is sometimes advocated.
  The lowest minimum prominence threshold of any definition of an Irish mountain is 15 metres, however most definitions, including the International Climbing and Mountaineering Federation criteria, do not consider prominences below 30 metres as being mountains. Many British definitions consider a peak with a prominence below 150 metres, as being a top, and not a mountain. A widely used definition of an Irish mountain requires a minimum prominence of 100 metres, and is the basis for the 100 Highest Irish Mountains.
  While Irish mountains are ranked according to Irish classifications, they are also ranked on classifications that cover Britain and Ireland.
context_section_description: There is no consensus on the definition of "mountain", but in Britain and Ireland it is often taken to be a summit over 2,000 ft, or more latterly, 600 m.  There is less consensus about the topographical prominence requirement (e.g. the change in elevation required between neighbouring mountains), which can vary between 30–150 m (98–492 ft). Prominence is even strongly debated regarding UIAA classification of Himalayan mountains.  In the alps, the UIAA requires a prominence of over 30 m to be a "peak" and over 300 m to be a "mountain".
  The lowest threshold of prominence in Britain and Ireland is 15 metres (49 ft).  The only definition in which prominence is not used, is where topographic isolation is used (e.g. the use of "sufficient separation" for Munros).  Most Britain and Ireland definitions no longer categorise prominences below 30 metres (98 ft) (e.g. no new Nuttalls and Vandeleur-Lynams), and peaks with a prominence between 30–150 metres (98–492 ft) are now defined as tops rather than mountains (e.g. the 227 Munro Tops).
  In Ireland, a prominence threshold of 100 metres (328 ft) is proposed for a mountain.
caption: Mweelrea from Doo Lough in Connemara. Mweelrea is the highest Provincial Top in Connacht, the highest County Top in Mayo, the 5th highest Irish P600 mountain, the 14th highest Irish Marilyn mountain, the 16th highest Irish MountainViews mountain, the 26th highest Irish Arderin/Hewitt mountain, and the 34th highest Irish Vandeleur-Lynam/Nuttall mountain. It is not a Furth (or Irish Munro), and therefore not a Real Munro.
exif: {"Image Make": "Canon", "Image Model": "Canon PowerShot A75", "Image Orientation": "Horizontal (normal)", "Image XResolution": "180", "Image YResolution": "180", "Image ResolutionUnit": "Pixels/Inch", "Image DateTime": "2006:07:14 12:45:53", "Image YCbCrPositioning": "Centered", "Image ExifOffset": "196", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "180", "Thumbnail YResolution": "180", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "2548", "Thumbnail JPEGInterchangeFormatLength": "4300", "EXIF ExposureTime": "1/800", "EXIF FNumber": "14/5", "EXIF ExifVersion": "0220", "EXIF DateTimeOriginal": "2006:07:14 12:45:53", "EXIF DateTimeDigitized": "2006:07:14 12:45:53", "EXIF ComponentsConfiguration": "YCbCr", "EXIF CompressedBitsPerPixel": "3", "EXIF ShutterSpeedValue": "309/32", "EXIF ApertureValue": "95/32", "EXIF ExposureBiasValue": "0", "EXIF MaxApertureValue": "95/32", "EXIF MeteringMode": "Pattern", "EXIF Flash": "Flash did not fire, auto mode", "EXIF FocalLength": "173/32", "EXIF FlashPixVersion": "0100", "EXIF ColorSpace": "sRGB", "EXIF ExifImageWidth": "2048", "EXIF ExifImageLength": "1536", "Interoperability InteroperabilityIndex": "R98", "Interoperability InteroperabilityVersion": "[48, 49, 48, 48]", "Interoperability RelatedImageWidth": "2048", "Interoperability RelatedImageLength": "1536", "EXIF InteroperabilityOffset": "1872", "EXIF FocalPlaneXResolution": "128000/13", "EXIF FocalPlaneYResolution": "128000/13", "EXIF FocalPlaneResolutionUnit": "2", "EXIF SensingMethod": "One-chip color area", "EXIF FileSource": "Digital Camera", "EXIF CustomRendered": "Normal", "EXIF ExposureMode": "Auto Exposure", "EXIF WhiteBalance": "Auto", "EXIF DigitalZoomRatio": "1", "EXIF SceneCaptureType": "Standard"}