List of mountains of the British Isles by relative height
For a longer list, see the lists of Marilyns which include all 2008 hills and mountains in the British Isles with a relative height of at least 150 m.
The relative height is the minimum height of climb to the summit on any route from a higher peak, or from sea level if there is no higher peak on the same landmass. The higher peak is known as a 'parent'. In this table, the prominence parent is used, as opposed to any other definition of 'parent'. The prominence parent of peak A can be found by dividing the island or region in question into territories, by tracing the runoff from the key col of every peak that is more prominent than peak A. The parent is the peak whose territory peak A resides in.
Most of these peaks make it into this list by virtue of the fact that they are the highest point in their local areas. To help readers identify the locations of the peaks, the topographic area of which these peaks are the highest point is listed in the 'Highest point of...' column.
Breakdown by region and height
|Country||Total||4000 ft+||3500–4000 ft||3000–3500 ft||2500–3000 ft||2000–2500 ft|
|Isle of Man||1||0||0||0||0||1|
|120=||Mullach Coire Mhic Fhearchair||1019||595||Sgùrr Mòr||Scotland|
|120=||Moel Siabod||872||595||Glyder Fawr||Wales|
|120=||Ben Cleuch||721||595||Ben Vorlich||Scotland|
|123||Moruisg||928||594||Sgùrr a' Choire Ghlais||Scotland|
|124||Beinn Bhuidhe||948||592||Ben Lui||Scotland|
|125||Carn Dearg||945||590||Creag Meagaidh||Scotland|
|128||Cairnsmore of Carsphairn||797||582||Merrick||Scotland|
|129||Beinn Heasgarnich||1078||579||Ben Lawers||Scotland|
|130||Sgùrr a' Mhuilinn||879||576||Moruisg||Scotland|
|131||Stob Coire a' Chearcaill||771||575||Sgùrr Ghiubhsachain||Scotland|
^1 Rois-Bheinn and Beinn Odhar Bheag both have a height of 882 m and are separated by a 524 m drop. They are collectively separated from Gaor Bheinn (their parent) by a 774 m drop making one of them eligible for inclusion in this list. However, without more accurate heights, it is impossible to say which should be included making them an example of a twin peak.
^2 Ben Loyal was at one time shown as having a height of 765m and drop of 610m. The current OS 1:25000 map gives 765m in brackets, presumably an air height. The height of the flush bracket on the trig is 764.1m so even 764m is a rounded-up height. The col is a 155m air height. From site visits there appears to be no evidence for any ground 1m higher than the trig.
- Dawson, Alan (1992). The Relative Hills of Britain. Milnthorpe, Cumbria: Cicerone Press. ISBN 1-85284-068-4.
- Clements, E.D. 'Clem' (1998). The Hewitts and Marilyns of Ireland. Cambuskenneth, Stirling: TACit Press. ISBN 0-9522680-8-6.
- Maizlish, Aaron; Dawson, Alan; Woodall, Rob; Trengove, Mark. "Great Britain P600m summits". Retrieved 2006-08-10.