Fox's Path and Crib Goch North Ridge up Crib y Ddysgl: route map, distance and time

1,065 m · Snowdonia

Crib y Ddysgl, also called Garnedd Ugain, is the second highest summit in Wales, on the Snowdon Horseshoe north of Yr Wyddfa.

A grade 1 scramble to the summit from Pen-y-Pass Pyg Track start.

The Fox's Path and Crib Goch North Ridge starts at about 367 m and gains 788 m over 5.5 km to 1,035 m on the track. The first kilometre climbs 96 m. The steepest kilometre is the one ending at 4 km, which climbs 216 m at an average of 22%, with a 500 m stretch from 3.4 km at about 28%. It keeps climbing at 16% to the top. About 33% of the way is steeper than 1 in 5, so expect hands-on-knees going and a slow descent.

Fox's Path and Crib Goch North Ridge at a glance

Distance5.5 km one way, to the top
Ascent800 m
Climb on the track788 m up, 120 m down on the way
Start and top of the track366 m to 1,035 m (summit 1,065 m)
Steepest 500 mAbout 28%, from 3.4 km
Steeper than 1 in 533% of the way
Time up2h 25m by Naismith's rule
There and back3h 30m, down the same way
GradeScramble
StartPen-y-Pass Pyg Track start, LL55 4NU
Start grid referenceSH 646 556
Summit grid referenceSH 610 551
ParkingPen y Pass car park (SH647556)

Fox's Path and Crib Goch North Ridge map

The track from the start (green) to the summit (blue), with a marker at each kilometre.

Height profile and getting to the start

Start 366 m5.5 km to the top
Start grid ref SH 646 556 · Driving directions · By bus or train

Near the start

From OpenStreetMap, within 2 km. Check opening times before you rely on them.

Download the Fox's Path and Crib Goch North Ridge GPX

Ascent only: plan your way down. A planning track, not checked on the ground; it doesn't show safe scrambling moves. Track data © OpenStreetMap contributors (ODbL), heights from a terrain model.

Fox's Path and Crib Goch North Ridge kilometre by kilometre

Height, climb and average gradient for each kilometre of the track, with a grid reference at the end of each one to check your position on the map.

AtHeightClimbGradientGrid ref
1 km463 m+96 m10%SH 637 553
2 km648 m+186 m19%SH 629 552
3 km640 m-8 m-1%SH 624 558
4 km857 m+216 m22% steepSH 624 552
5 km955 m+99 m10%SH 615 552
5.5 km1,035 m+79 m16%SH 610 551

How long the Fox's Path and Crib Goch North Ridge takes

PaceTo the topThere and back
Brisk 6 km/h, 8 min per 100 m up2h 0m2h 55m
Steady (Naismith) 5 km/h, 10 min per 100 m up2h 25m3h 30m
Relaxed 4 km/h, 12 min per 100 m up3h 0m4h 20m

Times leave out stops. Coming down the same way, the table counts the ascent once; steep descents on rough ground can be as slow as the climb.

  • Today: sunrise 07:48, sunset 18:14. Start by 13:44 to be down before dark, allowing 3h 30m for the walk and an hour for stops.
  • Tomorrow: sunrise 07:50, sunset 18:12. Start by 13:42 to be down before dark, allowing 3h 30m for the walk and an hour for stops.

Crib y Ddysgl summit weather for this route

  • Marginal Today Sunday 18 October

    Partly cloudy, up to 4°C at the summit, feeling as cold as -5°C, summit wind 27 mph gusting 33 mph, 0% chance of rain. Rated Marginal. Sunrise 07:48, sunset 18:14.

  • Poor Tomorrow Monday 19 October

    Moderate drizzle, up to 5°C at the summit, feeling as cold as -4°C, summit wind 41 mph gusting 51 mph, 90% chance of rain. Rated Poor. Sunrise 07:50, sunset 18:12.

Best day of the next seven for the Fox's Path and Crib Goch North Ridge: Sunday 18 October, with summit gusts around 33 mph and a 0% chance of rain.

Cloud inversion tomorrow morning: 0% (Low), best around 05:00. 7-day inversion outlook.

Hour-by-hour Crib y Ddysgl forecast · 14-day forecast · Is it safe to climb Crib y Ddysgl?

Before you go, also check: MWIS Snowdonia forecast · Met Office mountain forecast.

What to take today

  • An insulated jacket, hat and warm gloves: it feels like -5°C on top.
  • A waterproof jacket. It can rain on the tops in any forecast.
  • A windproof layer, and poles for balance in gusts to 33 mph.
  • Microspikes for icy paths. In snow, an ice axe and crampons and the skills to use them.
  • Map and compass, and the skills to use them. A phone is a backup, not a plan.
  • A head torch, food, water, a charged phone and a small first aid kit.

About Crib y Ddysgl

Crib y Ddysgl, also called Garnedd Ugain, is the second highest summit in Wales, on the Snowdon Horseshoe north of Yr Wyddfa. More about Crib y Ddysgl, with the live forecast.

On the lists: Furth, Hewitt, Nuttall.

Extend the walk: tops near the summit

Challenges that include Crib y Ddysgl

More walks from Pen-y-Pass Pyg Track start

Routes in Peakify's guides that start within 500 m of this one, for another day from the same car park.

Other routes up Crib y Ddysgl

RouteDistanceAscentTime upGrade
Llanberis Path via Bwlch Glas6.8 km one way950 m2h 55mModerate
Pyg Track via Bwlch Glas5.2 km one way720 m2h 15mHard
Miners' Track via Bwlch Glas6.7 km one way750 m2h 35mHard
East Ridge via Crib Goch4.1 km one way730 m2h 0mScramble
Crib Goch North Ridge from Blaen y Nant4.4 km one way930 m2h 25mScramble

In an emergency

Call 999, ask for the police and then mountain rescue. Give your location (the start is at SH 646 556, the summit at SH 610 551), what happened and how many are in your group. If you have no signal for a call, a text to 999 works once you have registered your phone with emergencySMS: text "register" to 999 before you go.

Fox's Path and Crib Goch North Ridge: questions and answers

How far is the Fox's Path and Crib Goch North Ridge?

The Fox's Path and Crib Goch North Ridge is 5.5 km one way to the summit of Crib y Ddysgl, with 800 m of ascent. There and back by the same way is about 11.0 km.

How long does the Fox's Path and Crib Goch North Ridge take?

About 2h 25m to the summit of Crib y Ddysgl and 3h 30m there and back by Naismith's rule (5 km/h plus 10 minutes per 100 m of ascent), before stops. A relaxed group takes nearer 4h 20m for the round trip.

How steep is the Fox's Path and Crib Goch North Ridge?

The steepest 500 m averages about 28%, starting 3.4 km from the start, and 33% of the way is steeper than 1 in 5. The Fox's Path and Crib Goch North Ridge climbs 788 m in all on the track.

Where do you park for the Fox's Path and Crib Goch North Ridge?

The Fox's Path and Crib Goch North Ridge starts from Pen-y-Pass Pyg Track start (postcode LL55 4NU). The grid reference is SH 646 556. Pen y Pass car park (SH647556)

Is the Fox's Path and Crib Goch North Ridge suitable for beginners?

No. It is a scramble: you use your hands on rock, often with big drops below. Go with someone experienced, on a dry and calm day, or take Llanberis Path via Bwlch Glas instead.

What time should I start the Fox's Path and Crib Goch North Ridge today?

By 13:44 at the latest. Sunset on Crib y Ddysgl today is 18:14, The Fox's Path and Crib Goch North Ridge takes about 3h 30m there and back, and that leaves an hour for stops. Start earlier in winter or if the forecast turns.

Is there a GPX for the Fox's Path and Crib Goch North Ridge?

Yes. Download it from this page. It is an ascent-only planning track from the start to the summit, plotted on OpenStreetMap paths and not checked on the ground.