Climbs 34
Rocktype Rhyolite
Altitude 631m a.s.l
Faces SE

Carnedd y Filiast © osh

Crag features

Vast expanse of layered slab, giving rise to some exceptionally long, easy mountain routes; some giving over 1000ft of continuous climbing. Many routes have a serious feel due to the almost complete lack of protection and total isolation. A place for those seeking solitude or an escape from the bustle of more modern crags.

Approach notes

Approach directly up the hillside from the old Nant Ffrancon road. Once in the cwm the ridge opposite the slabs provides a good position from which to familiarise onself with the complex layout.

Rockfax App

Available in the Rockfax App

The Rockfax App brings together all the Rockfax climbing information with UKC logbooks and presents it into a user-friendly package for use on Apple iOS devices (Android version to follow).


North Wales Climbs

North Wales Climbs covers the best climbing from the whole of this huge and varied area. The book is modelled on the very popular West Country Climbs which set a new standard for selected climb guidebooks back in 2010. It contains all the routes from the 2010 publication North Wales Classics and many more routes and areas, with expanded descriptions and much bigger photo-topos. The book covers all the major mountain crags from Llanberis Pass, to Cloggy; and from Ogwen to the Carneddau. It also includes the Llanberis Slate quarries, Tremadog, the Moelwyns, the Gwynant Valley, Mid-Wales, Gogarth and the North Coast Limestone.
More info

North Wales Classics

A significant addition to the Rockfax stable; North Wales Classics is a pocket-sized guide packs in hundreds of superb routes throughout the mountains of Snowdonia. From Tremadog to Tryfan, and everywhere in between, the book covers mid-grade routes on the best crags and features top-notch photo-topos and inspirational action shots taking you where you want to go.
More info
More Guidebooks:
North Wales Rock (2006)
Ogwen and Carneddau (1993)
Lovely crag. Treacherous descent in the wet.
zimpara - 02/Sep/15
Quite simply the place to be :-)
Nicholas Livesey - 19/Oct/09
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Climbs at this crag

 Tree Slab 
15Walk This WayHS 4b 1
16Crystal(Tree Slab)D 4
17Dog Leg(Tree Slab)VD 5
18Bracken Corner
S 4
19White LighteningS 9
20Static Electricity(Tree Slab)S 4a 1
21FrictionVD 5
 Central Slabs 
23Left EdgeVD **307
24Jay RouteVD 5
25The Waved SlabM *43
26Waved Slab Goodbye(Waved Slab)M *3
27Undulation2 3
28HawkwindS 26
29The RidgeD 31
30Central RouteD 40
31Atlantic Slab
3 61
32Russet Slab
VS 4
33Jagged Creste *
S 3
34Route one *
D 3
35Little One *
M 2
36The Tower *D **4
37The Runle *M m  
* Climbs listed in red are waiting to be checked by a crag moderator, and may not be accurate.

Moderator Updates to this page are checked by UKC volunteer Ian Archer