75m, 4 pitches.

Rockfax Description
A stellar line up this wall - something of a safe adventure. Start below a bolted groove.
1) 7a, 25m. Climb the groove past many bolts. When the holds run out, make a move right onto the blank wall. A crucial foothold here can remain damp, but the bolt can provide aid past this. Regain the groove above and pull onto the ledge and belay.
2) 6b, 12m. A short pitch that links up and right, past bolts, to a second groove.
3) 6c, 25m. The second groove looks just as hard as the first but is a little easier. A similar step right to the first pitch bypasses a blank section of the groove before regaining it again and following it to the belay below a final dolerite slab.
4) 6b, 12m. Follow the bolts up the slab via some quartz pockets and belay off fence posts and a thread. © Rockfax

UKC Logbook Description
An awesome 4 pitch slate adventure from the very bottom of the ‘Twll Mawr’ hole topping out on the viewing platform adjacent to the track. The route follows an impressive and awe-inspiring (read - intimidating!) line of grooves and pocketed dolerite. The route can be accessed through the Twll Mawr / Peregrine Wall Tunnels and walking down the scree slope to the bottom of the hole, or alternatively a multiple abseil if you have a spare rope. Start just left of Running Scared F7c+ by an obvious and well bolted groove.
Pitch 1 -25m (7a) the obvious well bolted groove defined by a blank slab / wall on its right. When the holds run out make a rightwards move onto the slab followed by some more technical moves to regain the groove (crux). Belay on the grassy Ledge above.
Pitch 2 – 12m (6b+) the pitch that joins the two grooves has a technical and precarious (fall offable!) crux. Continue upwards / rightwards to gain the belay at the base of the 2nd groove.
Pitch 3 – 25m (6c+ / 7a) the second intimidating groove pitch similar to the crux on the first pitch when the holds run out make a rightwards move onto the slab followed by some more technical moves to regain the groove (crux). Continue up the groove which looks desperate but climbs more easily to a belay where the groove ends and the dolerite slab begins.
Pitch 4 – 12m (6b) a change of character and rock type for the final well positioned pitch, climb the black dolerite slab via some great quartz pockets to thankfully gain the ‘viewing’ ledge above. Use a thread + Bolt for a belay and RELAX!

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


Ian Lloyd-Jones and Sion McGuinness 07/Jul/2011

Ticklists: a State of Slate, Classic UK F7s, Twll Mawr Sporting Challenge, Dinorwic Slate - Multi Pitch Sport Climbs, All the Llanberis SLATE sport @ 7a & 7a+, Slate Sport, Radical Rockcats 2nd Year of Uni Ticklist.

luke glaister 27/Sep AltLd O/S

Got lost but great fun. Did first pitch and belayed on the left. Then went straight up from there. Never noticed the bolts changed till past the hard smooth wall with square block. By then it was to late so I moved right to the top of the 3rd pitch belay on SMBH and then finished that route. It should be a link up cause it was brilliant. Will have to come back for the 2nd and 3rd pitches. Quality

Derek Ryden 27/Jun AltLd O/S

Great route, p3 superb. Guidebook grading all to cock. I would suggest 6c+, 6c, 6c+, 6b+

with Ian Parnell
MrBIond 23/Jun Lead O/S
mrteale 16/Jun Lead β

1st pitch. Favourite pitch on Slate so far.

with MrBlond
Hidden 06/Jun AltLd dog
geoff b 06/Jun AltLd O/S

Another excellent route Ian, diolch yn fawr. Perhaps those of us with suppleness (or subtlety?) have an advantage on the first pitch? Generously bolted climbing on mostly solid rock.

with Mike P & Steve L
pete johnson 21/Apr Lead O/S

Soft touch but superb.

with Al Hughes
ian Ll-J 10/Apr Lead rpt
Hidden 21/Sep/14 AltLd O/S
Hidden 05/May/14 AltLd O/S
Hidden 05/May/14 AltLd O/S
Stefan_Morris 03/May/14 AltLd O/S
AndrewJamesCherry 03/May/14 AltLd O/S

Been eyeing it up all year, feels fantastic have onsighted it. Climbs really well

dswansonlow 02/May/14 AltLd O/S

Pitches 1,3,4 Sooo good! I strung he last two pitches together and it felt so awesome. I reckon it probably pays to be tall on pitch 3 because every move is quite long. Brilliant! 1st pitch felt much easier than I expected.

shed_hed 02/May/14 AltLd O/S

Led pitch 2. Great route. Would not want to be much shorter, would quickly start to get very tricky!

guy757 21/Apr/14 -
colin struthers 28/Sep/13 Lead O/S

After completing the crux move right on the first pitch and having moved back left to the groove/aręte I then pulled on a large block - which I think moved. Having crapped myself I climbed upward very swiftly - so I didn't hang around to inspect the hold/block. Consequently I can't say if the hold/block was really loose or if I just imagined it. My mate didn't notice anything dodgy when he seconded the pitch but he may well have used different holds. Nevertheless I thought I should post something on here so that other people will at least be aware of the possible danger. I suspect the dodgy rock is avoidable but it would be well worth having a look at the holds on the groove/arete above the crux step right if you are abbing in to the start of the route Offending block since removed by Ian LJ with no increase in grade. Thanks for doing that Ian

Hidden 01/Sep/13 AltLd O/S
soph 09/Aug/13 AltLd O/S
with Lee Cooper
Mattlamb90 27/Jul/13 2nd RP

Tried to lead first pitch but came off in the groove

with Ryan
spidey 27/Jul/13 Lead O/S
with mat lamb
Julian Cooper 20/Jul/13 AltLd O/S

Abseiled in to the ledge and then down to the bottom. Great climb in the shade from the heatwave. Recommended. It looks like we did P1 of Supermassive and P2 of Black Holes. Then we finished up Black Holes too. Good adventure.

with Ben Steel
lewisrichardson ?/Jun/13 Lead dog
with dad
rustaldo 03/May/13 Lead rpt

second time through for me, felt like a few holds had gone missing! (or maybe i was feeling weak) still great. 7a, 6b+, 6c/+, 6b for me.

Hidden 03/May/13 2nd
morganator 02/May/13 AltLd

Fun, soft touch for 7a

with Calum Muskett
Hidden 19/Mar/13 Lead O/S
Paul Collins 19/Mar/13 2nd

Just climbed pitches 2,3 & 4 cause the abseil rope was too short!

with Rory Sullivan
Dave Musgrove Jnr 01/Sep/12 AltLd O/S
with Nic Sellars
metal arms 04/Jun/12 Lead O/S
dan ely 16/May/12 Lead rpt
with pitbull
Luke Brooks 13/May/12 AltLd O/S
with Liam
willoates 08/May/12 AltLd O/S

A combination of this and black holes and revelatons. good climbing whatever we did.

with John Oooooore
rustaldo 28/Apr/12 Lead O/S

amazing route! good overall value at 7a, did it in 3pitches linking the last two. the climbing throughout is great, lots of thin moves between jugs.

with Tom
jason reeve 27/Nov/11 AltLd

led pitch 2 + 4, led pitch 4 in the dark with head torch. amazing route! first pitch definetly felt alot easier than 7a

with dylan
mark mcgowan01 13/Nov/11 AltLd O/S
with Trevor Hodgson, Johnny Dawes
Hidden 13/Nov/11 AltLd
Hidden 01/Nov/11 AltLd
Alex Mason 04/Sep/11 AltLd O/S

In two logical (6c+?) pitches. Led P1. Seconded P2 in the rain. Very well bolted and no really hard moves. Fantastic route, gauranteed to become a modern classic.

owain86 04/Sep/11 AltLd O/S

Great Route, strung pitches 1+2 and 3+4 together. Led 3+4. Awesome!

Dave Turnbull, BMC 29/Aug/11 AltLd O/S
with Chris Parkin
Hidden 19/Aug/11 AltLd O/S
dan ely 15/Aug/11 AltLd O/S

i lead crux pitches. congrats and big respect to the bolters (Ian Lloyd-Jones and Sion McGuinness) great effort and route, thanks very much!

with Torqwell
mr mills 05/Aug/11 AltLd O/S

Gareth led P1, I led P2-4 in one pitch. I would suggest the route to be done this way as there is an excellent belay ledge on pitch one. Good job Ian, excellent route...

with Gareth
Hidden 04/Aug/11 2nd dog
Steve Long ?/Aug/11 Lead

A very nice route. The crux is much harder than the rest of the route, a high step up unless you have very long legs and can bridge it. Topped out at dusk. A great adventure, good effort spotting and cleaning it, Ian.

with MIke Pycroft
Hidden ?/Aug/11 AltLd
Hidden 23/Jul/11 AltLd O/S
Hidden 23/Jul/11 AltLd
schof 14/Jul/11 AltLd O/S

Third ascent. I think this is on the cusp of 7a rather than 6c+. I think that if 7a was your limit and you expected this to be 'alrite' you'd get a spanking. Good climbing, mini quarryman-esk. Pitch 1 and 3 are the hardest. very good

with Big phil
phil64 14/Jul/11 AltLd O/S

great route, do in 2 long pitches, well bolted- thanks to the first asciensionists for all the hard work!

with andy schofield
Glyn 11/Jul/11 Lead O/S

Awesome route. Its not as hard as looks. Apart from a couple of moves all the holes are quite big and positive. Can be done as two long pitches. very well bolted and easy to find. http://adventuresplusnorthwales.blogspot.com/2011/07/supermassive-blackhole.html

with Calum Muskett
ian Ll-J 07/Jul/11 Lead

First Ascent an awesome and memorable adventure!

McGuinness 07/Jul/11 2nd O/S

Fantastic! Excellent climbing in a very intimidating position. Very pleased to be on the FA. (Ian did all the hard work though!)

with Ian ll-j
Users with this climb on their wishlist are:
Mrduk, mattrm, serby, RFWilkie, max_dickens, Hidden, bigBadBadger, Tom.Priestley, Hidden, chrisclimber, Hidden, Hidden, Hidden, morpcat, APuddy, ad111, wazzalad20, Dean177, Nick Nitro, Hidden, Billg, rustaldo, Hidden, eugeneth, Hidden, samrad, Ropeboy, wi11, Tom Livingstone, Hidden, Hidden, mloskot, Matt Reid
High 7a+
Mid 7a+
Low 7a+
High 7a
Mid 7a
Low 7a
High 6c+
Mid 6c+
Low 6c+
Votes cast 26
Votes cast 24
Style of ascent
Alt Leads
Not Set
Flashed (β)
Not Set