Climbs 68
Rocktype Slate
Altitude 300m a.s.l
Faces NW

Unknown climber new routing/checking route © Edale

Crag features

Not for the faint-hearted or soft-headed, some loose rock so helmets advised. Twll Mawr is the home of some amazing routes, single and multi-pitch up to 219 metres the nearest Britain really has to Yosemite. (Leo Houlding spent a lot of time here.) The Big Hole is home to the famously impressive 'The Quarryman' (E8 7a) and 'The Meltdown' 9a. A number of single and multi pitch sport routes have been added over recent years including the 4 longest multi pitch sport routes in the UK, 'The Rock Bottom Line' 135 metres, 'The Desolation of Smaug' 145 metres, 'Long in the Twll / The North is Rising' 160 metres and 'Tan y Ddraig' 180 metres.

NOTE: If you've enjoyed any of the bolted routes in Twll Mawr please consider donating to the North Wales Bolt Fund :-)

Approach notes

From Bus Stop Quarry continue along the path, beyond Dalis and Never Never Land. The huge vista of rock should be obvious as you go on.

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If You've enjoyed any of the bolted sports routes in Twll Mawr please consider donating to the North Wales Bolt Fund :-)
ian Ll-J - 04/May/15
How to Find Twll Mawr on You tube...
ian Ll-J - 08/Mar/15
Some links for The Rock Bottom Line, Supermassive Black Hole, Black Hole Sun and Black Holes and Revelations...
ian Ll-J - 04/Jun/12
Check out my photosynth panoramic at the base of SuperMassive Black Hole in Twill Mawr:
Jonny2vests - 11/Sep/11
A historical account of Joe Brown's early explorations in Twll Mawr...Note to self - must remember the beer next time next time I'm new routing in there :o)
ian Ll-J - 11/Sep/11
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Climbs at this crag

Climb name Grade
 Watford Gap 
2In Between Red and Green
E1 5a  
3Snoring Exploring
E1 5b  
4Watford Gap West
VS 4b 5
 Combat Rock Area 
6Combat RockE1 5b **181
7Tunnel VisionV5 2
8Graffiti Drive ByV4 1
9RhyfelwrE2 5b *38
10Teenage Kicks
E4 6a * 
11Purple Haze
E3 5b *11
12The Color Purple
E4 6a *4
13Cyclone B
E3 6a 1
 The Alcove 
15Lethal Injection
E2 5c 2
16Legal Murders
E3 6a *2
17Top Gear
E1 5b  
18Drunken Laughs
E2 5b  
 The Quarryman Wall 
20A Winter's Tale6b 1
21The HuntedE7 6c ** 
E3 6b *6
E6 6c ** 
24Coeur de Lion
E8 7a ***3
25The Meltdown
9a *** 
E7 6c 2
27King of the Mezz
E7 6c * 
28The QuarrymanE8 7a ***6
29The Fire Escape
E7 6c ** 
30Mike's Trombone
E6 6a/b *** 
31Phil's Harmonica
E6 6c  
32The Wonderful World of Walt DisneyE6 6b ***6
33The Dyke
E6 6a  
34The Gay Blade
E6 6a  
35The Rock Bottom Line7b+ ***35
 The North Wall 
37Opening Gambit
XS 5c 2
38Long in the Twll/The North will Rise Again6c+ **46
E3 5c 9
40Tân y Ddraig7a **41
41The Desolation of Smaug!6c ***174
42AntiquarianE5 6a  
43The Razor's Edge
E3 6b  
44The True Finish
E4 6b  
E3 6b  
XS 5b  
47Taith Mawr
E4 6a  
48The Punters Retreat
E3 5b  
49Island of Stability6c ***2
50Bonza CrackHVS 5b *2
 The South Wall Upper 
52Practically Esoteric
E2 5c *1

Moderator Updates to this page are checked by UKC volunteer ian Ll-J