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Clach Glas and Blaven

The Isle of Skye is home to some of the most prolific peaks in Scotland. It is in fact the only Island to host any mountains of Munro status (other than Benn More on Mull of course), the center piece of which are the Black Cuillin.

These are a menacing assemblage of huge gothic spires that were formed over 50 million years ago when magma was injected up innumerable fissures below the surface as The Americas parted from Europe. If only the midges had chosen to be on the American half!

To the mountaineer these monoliths of rock provide an apt testing ground for both skill and also tenacity. The main ridge traverse is one of the most sought after ‘ticks’ of the British mountaineer (and is also the bane of many a non-climbing Munro bagger!).

It only graded at VDiff, however it takes an average party two days to complete a traverse with a bivi in the middle being de reguir. They have been often compared to the rock spires of the Alps but with the added difficultly of Atlantic weather systems!

They are off the Cullin main ridge and are therefore a slightly more amenable objective as they can be completed in a single day at around Diff.

Approach

How to Gain the Ridge

The route starts by ascending the broad shoulder of Sgurr nan Each out of Chorie a’ Ciase toward its more rocky summit ridge.

This is where the fun begins, as the traverse along its stepped crest makes an entertaining grade 2/3 scramble.

After a quick descent the bealch between Sgurr nan Each and Clach Glas is soon reached. This marks the last point of escape before the next bealach below Bla Bheinn. Between these two bealachs is some of the most intricate and exposed ridge climbing anywhere in the UK.

The ridge immediately becomes narrow and complex with the menacing summit tower of Clach Glas looming ahead. A few minor difficulties are passed on the right and the one awkward down-climb land you below the tower.

Overhanging rock shelf
Clach Glas and Blaven

Chimney and Imposter Slab

A large chimney is then ascended for about 40m via awkward bridging before it can be escaped up an off-width crack on the right wall which leads to the sanctuary of a ledge. From here a long swath of pimpled, overlapping slabs climb eventually to the summit platform.

The next section is the famous Imposter slab which must be down-climbed again with tremendous exposure.

Luckily it’s very easy apart from one section at the bottom, a recent rock fall appears to have made the exit slightly more tricky.

Spiked ridge

Classic Exit and the Crux

The exit up this has innumerable lines, the most classic of which follows an in-cut ledge system and is grade 3/Mod. First however you must ascend a small steep wall out of the bealach which is often wet and is probably the hardest bit of the entire route.

After that some scree is climbed to an obvious ledge system. It is created by differential erosion of a basaltic dyke resulting in an in-cut ledge feature. This climbs initially quite spaciously up the face until it begins to constrict forcing you to crawl.

The crux is moving out of this ledge feature into a chimney above quite simply the biggest drop you’ve ever seen. After which the top is soon reached.

Cullin Ridge on the Isle of Skye

Now just the knee crunching walk down!

Recommended Guidebook & Map

The best guidebook for this route is found in the SMC Skye Scrambles Book, which is available via Amazon on Paperback here.

The best map for this route is the Ordnance Survey Landranger 32 South Skye & Cuillin Hills Map, available on Amazon here.

Recommended Scrambling Guide: (coming soon)

Recommended Accommodation

You can find accommodation for all price ranges on the Isle of Skye at Booking.com here.

Route Info

Distance9 km
Elevation1200m +/-
Duration8 - 12 hours
GradeDIFF

Navigation

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MapsBest Map
Guided ToursGuides
AccommodationWhere To Stay?
ContributorWho Contributed?

Route Contributed by: Sam Wainwright

“I live for everything outdoors and to me a bad day in the hills still beats a good day in the office.”

Sam regularly publishes route blogs on his website Wainright Climbing here.

This route was created by Sam Wainwright and donated to the UK Scrambles website through our contributor program.

This generosity enables us to publish a whole range of scrambling routes to help you enjoy the outdoors.

If you have a route you could contribute, submit it to us today.

Sam Wainwright

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