top of page
  The Lakes 24                                                                  Lakes

This route of 71 miles and 29,200 feet, devised and completed by Chris Upson, won the FRA Long Distance Award in 2003.  It ascends 24 Marilyns in 24 hours.  The start is at Martindale Hause, near Ullswater and the finish is on the summit of Swinside not far from Derwentwater.  The term 'Marilyn' was conceived by Alan Dawson in his book "The Relative Hills of Britain" which defines it as a hill with a drop of at least 150 metres, or roughly 500 feet, on all sides, in a similar way to the Scottish Corbetts.  This ignores absolute height, the distance from other hills and topographical merit to give a list of more significant, individual hills. It also excludes what some might consider to be "soft touch" hills that feature in some of the UK Big 3 rounds and their extensions.

As a worthy alternative to the Bob Graham, The Lakes 24 brings variety, objectivity and a fresh perspective to a view that may have become a little blinkered over the years. Surprisingly it has still to be repeated!



Click on the icon to view/print a schedule of the inaugural traverse made in June 2003.



 This is an informal 24 hour mountain challenge without              registrations.  Why not share your experience on facebook to  encourage and inspire other runners to have a go!

 Links and Further Information

  • Enquiries and reports - email:

  • Lakes 24 - Chris Upson's webpage with a map, route profile and a schedule of his actual times.

  • The Relative Hills of Britain, Alan Dawson, (Cicerone Press, 1992) - tables of Marilyns for England and Wales.

  • Hill lists in the British Isles - the Wikipedia entry giving explanations of the various lists including the definition of a Marilyn





UK Big 3 Rounds
Challenges by Region

Records & Logs


Route Index

Andy's  Southern Fells

Assynt Traverse
Bala Challenge

Bay Limestone Round

Bob  Baxter  Traverse
Bob Graham Round
Bowland Dozen
Bowland 1500’s
Broxap Round

Cairngorm Munros
Canary Islands 3 Peaks
Charlie Ramsay Round
Charnley Way

Cleveland Hills Challenge
Cuillin Round
Cumbrian Traverse
Dales Skyline
Dales Top Ten
Dales 2000’s

Dark Peak County Tops

Dark Peak 15 Trigs

Dartmoor Round

Denis Rankin Round

Dragon’s Tongue
Durham Hewitts

Etive Munros Round

Freeman Round

George Fischer Tea Round
Glen Lyon Corbett Round
Great North Inns Run
Harvey Howgill Tops

John Fleetwood Lakes 40

John Fleetwood Lakes Routes

John Fleetwood Scottish Routes

John Fleetwood Welsh Round

Joss Naylor Lakeland Challenge

Knoydart 7
Lakes 24

Lakes 25@25
Lakes 2500’s

Lakes Sea to Summits

Llangollen Hills Run

Loch  Lomond  Round

Leventon’s Line
Meirionnydd Round
National & Yorkshire 3 Peaks
No Cure Always Hope
Over The Hill Round
Paddy Buckley Round

Peak Traverses & Rounds

Pikes of the Lakes

Rigby Round - Cairngorms

Run the Line - Dales

Ring of Fire - Galloway

Saddleworth 10 Trigs
Scottish 4000’s
Six County Tops - Peak
Snowdonia Skyline
Snowdon to Pumlumon

South Pennine 39 Trigs
South Wales Traverse

Steve Parr Round

Tan Hill to Kirkstone Pass Inn
Tranter’s Round

Tyndrum Round
Upper Calder 13 Trigs
Wainwright 7 Summits

Wainwrights 30@30

Wicklow  Round
Yorkshire Round
Yorkshire 2000’s


More Challenges

Links & Articles

Sub-ultras (under 50 km)


Where there is a recorder please contact them to log your completion. In addition, or if there isn't a recorder, you are invited to share your experience on the gofar facebook page to encourage and inspire other runners to have a go!



All the routes on this site require proven mountain running experience. You undertake them entirely at your own risk. Please take full mountain safety precautions at all times.  Always ensure you carry sufficient clothing, food and equipment to cope with dramatic changes in the weather conditions!  Appropriate insurance cover is recommended.


The object of this website is to provide a single, ready source of information on the ultra-distance mountain challenges which have been developed over the past four or more decades. It now offers a diverse range of long and "short", old and recent, formal and informal routes from around the UK to encourage runners of all ages and abilities to have a go, subject to proven mountain experience in all conditions.




Please send details of any record-breaking runs and the like to Martin Stone who maintains records on behalf of the Fell Runners Association. Email:

Please also refer to the guidelines and definitions in the FRA Handbook.


If you can improve on the accuracy of this resource, spot any errors in grid references, names, heights, spelling or punctuation, or find a link which does not work please email Tony Wimbush.:

Similarly, if you wish to submit any new (or old) routes for inclusion see the contact page for the information and format that is required:. 

bottom of page