Mynydd Graig Goch from Nebo

By Dave Roberts   

on January 16, 2016    No ratings yet.

Mynydd Graig Goch from Nebo

Further Details

Route Summary:

Walk to the wrong end of the Nantlle Ridge, especially useful if you’ve walked the rest of the summits and just need to tick this off your list. Makes a worthy half day’s walk as well – avoiding the crowds!

This walk includes the Washi of Mynydd Graig Goch

This walk includes the Hewitt of Mynydd Graig Goch

This walk includes the Nuttall of Mynydd Graig Goch

Route Start Location: Nebo

8.16 km 598 m 3-4 hours

Calculate the time using Naismith’s Rule and factor in your own pace.

Activivity Type: Hard Walk

Summits and Places on this Route


Absolutely nothing. Penygroes is the nearest village, which has a couple of well stocked shops.


That damn wall on the summit! There’s a stone stile to cross it, but we weren’t very elegant gettign across it!

Remember that we cannot outline every single hazard on a walk – it’s up to you to be safe and competent. Read up on Mountain Safety , Navigation and what equipment you’ll need.

Parking :

Limited by track to Llyn Dulyn

Public Transport:

Limited service to Nebo from Caernarfon.

Traveline for UK Public Transport

Recommended Maps


Mynydd Graig Goch from Nebo Ordnance Survey Map and GPX File Download

Download file for GPS

Mynydd Graig Goch from Nebo

At best, Mynydd Graig Goch is tagged on as an afterthought to a complete traverse of the Nantlle Ridge, or ignored completely. Although more recently found to be slightly taller, it was always a mountain, why would it be called Mynydd otherwise?

This little loop of Cwm Dulyn, not to be confused with the ‘other’ Cwm Dulyn, makes a good half day’s walk not to be underestimated.

1 You can start the walk from the hamlet of Nebo (bus services, limited parking, no facilities to speak of), turning right behind the school (or left, depending from where you approach it, just not along the front! However we set off towards Ffordd Y Llyn and parked at the 90 degree bend.

2 Follow the track straight ahead, which soon brings you to the tautologically named Llyn Cwm Dulyn (Lake of the Corrie of the Black Lake. Or similar). Turn right through the kissing gate and along the lakeside. This section is rather wet, and you can set off uphill to avoid this if you wish. We continued as far as the wall, and then set off uphill along the fence, steeply!

3 If you’re lucky enough to find the faint path, you can follow this for the next 1km, with a series of marker posts making it easy to follow all the way to the summit wall. Failing that, you’ll just have to head uphill, with some map and compass work needed if you don’t find the posts!

4 At the wall – don’t attempt to cross, but instead follow the wall uphill until you find a stone stile in the wall. It’s easily missed, and rather tricky to cross in the wet. You can also continue along the wall as there’s now a wooden stile further up – at last!

Mynydd_Graig_Goch (10 of 20)

5 Crossing the wall, the summit is just to your right, and requires barely any ascent from the wall. It’s an interesting jumble of tors and rocks, resembling Dartmoor more than it does Snowdonia. However, the views are fully Snowdonia in one direction and the Llyn Peninsula in the other.

Mynydd_Graig_Goch (12 of 20)

6 You can descend directly the way you came in order to find the moorland, or continue along to the second summit to the South East before finding a suitable point to descend as the summit is particularly craggy. The route we followed is a reasonably easy to follow path along the moorland, once you find it, but a rough compass bearing to the south of Bwlch Cwmdulyn will be required if you can’t find it.

Mynydd_Graig_Goch (14 of 20)

7 Just before you reach the bwlch, you’ll pass a tor to your left (560m ring contour on the 1:25k map) and then the path descends steeply down before ascending the other side. From this point on – keep an eye out for upright stones that mark the path most of our way down, or all the way to the Cwm Silyn track. After 400m or so, you’ll cross a wall, beyond which is the only sensible route over to Garnedd Goch. We lacked time today, but it’s an easy addition to the route, descending from the summit along the wall and to rejoin this route just before Llyn Cwm Dulyn.

Mynydd_Graig_Goch (17 of 20)

8 The track is rough, but reasonably straightforward to follow, just spot the upright stones. You’ll need to turn left at SH504 496, though the stones continue to mark a fainter path ahead. Keep on towards the broad ridge of Braich y Llyn, aiming to the left of the large boulder in the middle.

9 Finally, aim towards the outlet of the lake, and the wall just beyond. Cross this at the stile, and a footbridge brings you back to the track you followed up at 2 above, which you can follow back to the start.

Mynydd_Graig_Goch (1 of 1)

Dave Roberts founded Walk Eryri in 2004, with the aim of providing routes that are off the beaten track. Walk Eryri is now part of Mud and Routes which continues to provide more off beat routes and walks in Snowdonia and beyond. Dave has been exploring the hills of Eryri for over thirty years, and is a qualified Mountain Leader. Dave also established Walk up Snowdon, Walk up Scafell Pike and Walk up Ben Nevis just to mention a few.
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