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List of Marilyns in the British Isles
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List of Marilyns in the British Isles
A Marilyn is a hill or mountain in the United Kingdom, Ireland or surrounding islands with a prominence of at least 150 metres (492 ft), regardless of its absolute height or other characteristics such as topographic isolation.
Marilyns may include true mountains (with heights above 600 m (2,000 ft)) as well as smaller hills, as long as they meet the prominence criterion.
As of July 2023[update], there were 2,010 recorded Marilyns.
The Marilyn classification was created by Alan Dawson in his 1992 book The Relative Hills of Britain. The name was coined as a punning contrast to the Munro classification of Scottish mountains above 3,000 ft (914.4 m), which has no explicit prominence threshold, being homophonous with Monroe. The concept was later extended to Ireland by E. D. "Clem" Clements.
Marilyns were the first of several British Isles classifications based solely on topographic prominence, including the P600s, the HuMPs, and the TuMPs. Determining prominence is more complex than measuring absolute elevation, requiring surveys of each contour line around a peak; therefore, lists based on prominence are periodically revised.
Although many of the largest mountains in the islands, such as Ben Nevis, Carrauntoohil, Scafell Pike and Snowdon, are Marilyns, others—including Cairn Gorm and some Munros, as well as hills like Bowfell, the Langdale Pikes, and Carnedd Dafydd—are not, as they lack sufficient relative height compared to nearby higher "parent" peaks.
As of July 2023[update], there were 2,010 Marilyns in the British Isles: 1,218 in Scotland (including 202 of the 282 Scottish Munros; Munros with Marilyn-prominence are sometimes called Real Munros), 454 in Ireland, 174 in England, 159 in Wales, and 5 in the Isle of Man. On 13 October 2014, Rob Woodall and Eddie Dealtry became the first people to climb all 1,557 Marilyns in Great Britain. As of 2022[update], 11 Marilynists had climbed all Marilyns then listed in Great Britain, and, As of December 2019[update], 275 had entered the Marilyn Hall of Fame by climbing over 600 Marilyns.
In June 2025, Dawson published The Revised Relative Hills of Britain: The Marilyns (Pedantic Press, ISBN 978-1-9163662-5-1), listing 1,550 Marilyns in Britain (excluding Ireland and the Isle of Man) and 99 hills which narrowly fail to qualify (submarilyns). As of June 2025[update], this list is used by the Database of British and Irish Hills to define a Marilyn, with a separate category for The Irish and Manx Marilyns.
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List of Marilyns in the British Isles
A Marilyn is a hill or mountain in the United Kingdom, Ireland or surrounding islands with a prominence of at least 150 metres (492 ft), regardless of its absolute height or other characteristics such as topographic isolation.
Marilyns may include true mountains (with heights above 600 m (2,000 ft)) as well as smaller hills, as long as they meet the prominence criterion.
As of July 2023[update], there were 2,010 recorded Marilyns.
The Marilyn classification was created by Alan Dawson in his 1992 book The Relative Hills of Britain. The name was coined as a punning contrast to the Munro classification of Scottish mountains above 3,000 ft (914.4 m), which has no explicit prominence threshold, being homophonous with Monroe. The concept was later extended to Ireland by E. D. "Clem" Clements.
Marilyns were the first of several British Isles classifications based solely on topographic prominence, including the P600s, the HuMPs, and the TuMPs. Determining prominence is more complex than measuring absolute elevation, requiring surveys of each contour line around a peak; therefore, lists based on prominence are periodically revised.
Although many of the largest mountains in the islands, such as Ben Nevis, Carrauntoohil, Scafell Pike and Snowdon, are Marilyns, others—including Cairn Gorm and some Munros, as well as hills like Bowfell, the Langdale Pikes, and Carnedd Dafydd—are not, as they lack sufficient relative height compared to nearby higher "parent" peaks.
As of July 2023[update], there were 2,010 Marilyns in the British Isles: 1,218 in Scotland (including 202 of the 282 Scottish Munros; Munros with Marilyn-prominence are sometimes called Real Munros), 454 in Ireland, 174 in England, 159 in Wales, and 5 in the Isle of Man. On 13 October 2014, Rob Woodall and Eddie Dealtry became the first people to climb all 1,557 Marilyns in Great Britain. As of 2022[update], 11 Marilynists had climbed all Marilyns then listed in Great Britain, and, As of December 2019[update], 275 had entered the Marilyn Hall of Fame by climbing over 600 Marilyns.
In June 2025, Dawson published The Revised Relative Hills of Britain: The Marilyns (Pedantic Press, ISBN 978-1-9163662-5-1), listing 1,550 Marilyns in Britain (excluding Ireland and the Isle of Man) and 99 hills which narrowly fail to qualify (submarilyns). As of June 2025[update], this list is used by the Database of British and Irish Hills to define a Marilyn, with a separate category for The Irish and Manx Marilyns.
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