Route outline for walk cw146:
Llyn Eigiau - Craig Eigiau - Cwm Eigiau - Pen Yr Helgi Du - Bwlch Tri Marchog - Pen Llithrig y Wrach - Llyn Colwyd Reservoir - Craiglwyn - Creigiau Gleision - Creigiau Gleision (North Top) - Eilio Farm - Llyn Eigiau
Peaks, Summits and Tops reached on this walk:
![]() 4 Welsh Mountains |
![]() 0 Wainwrights |
![]() 6 Welsh Nuttalls |
![]() 0 Welsh Deweys |
![]() 0 Wainwright Outlying Fells |
![]() 2 Welsh Marilyns |
![]() 0 Bridgets |
Peak Bagging Statistics for this walk:
The highest point of this walk is Pen yr Helgi Du at 833m (2734ft). Pen yr Helgi Du is classified as a Welsh Mountain (Hewitt) (26th highest in Wales, 57th highest in England & Wales)
Pen yr Helgi Du is also known as a Welsh Nuttall (30th highest in Wales, 66th highest in England & Wales). Pen yr Helgi Du means 'Hill of the Black Dog' in Welsh and is pronounced 'pen-ur-hell-gi-dee'.
The summit of Pen yr Helgi Du is marked by a beehive shaped cairn.
Completing this walk will also take you to the top of Pen Llithrig y Wrach at 799m (2622ft). Pen Llithrig y Wrach is classified as a Welsh Mountain (Hewitt) (36th highest in Wales, 80th highest in England & Wales)
Pen Llithrig y Wrach is also known as a Welsh Nuttall (46th highest in Wales, 96th highest in England & Wales) and a Welsh Marilyn (16th highest in Wales, 395th highest in the UK).
Pen Llithrig y Wrach means 'Slippery Hill of the Witch' in Welsh and is pronounced 'Pen Thlith-rig ee racht'.
The summit of Pen Llithrig y Wrach is marked by a cairn.
You will also reach the summit of Craig Eigiau at 735m (2412ft). Craig Eigiau is also known as a Welsh Nuttall (68th highest in Wales, 165th highest in England & Wales). Craig Eigiau means 'Fish Shoal Rock' in Welsh and is pronounced 'cry-gay-g-ee-eye'.
The summit of Craig Eigiau is marked by a rocky outcrop.
Along the way you will also bag:
- Creigiau Gleision at 678m (2225ft). Creigiau Gleision is classified as a Welsh Mountain (Hewitt) (80th Wales, 197th Eng & Wal), a Welsh Nuttall (109th highest in Wales, 263rd highest in England & Wales) and a Welsh Marilyn (37th Wales, 634th highest in the UK). Creigiau Gleision means 'Blue Crags' in Welsh and is pronounced 'kray-geye glay-see-on'.
The summit of Creigiau Gleision is marked by a cairn.
- Creigiau Gleision (North Top) at 631m (2072ft). Creigiau Gleision (North Top) is classified as a Welsh Mountain (Hewitt) (110th Wales, 267th Eng & Wal) and a Welsh Nuttall (155th highest in Wales, 369th highest in England & Wales). Creigiau Gleision (North Top) means 'Blue Crags' in Welsh and is pronounced 'kray-geye glay-see-on'.
The summit of Creigiau Gleision (North Top) is marked by a cairn.
- Craiglwyn at 623m (2044ft). Craiglwyn is known as a Welsh Nuttall (167th highest in Wales, 394th highest in England & Wales). Craiglwyn means 'Bush Crag' in Welsh and is pronounced 'cry-glue-win'.
The summit of Craiglwyn is marked by a small cairn.
You can find more walks near this one on these unique free-to-access Interactive Walk Planning Maps: (click/TAP to select)
1:25,000 scale OS Explorer Map (the ones with orange/yellow covers):
1:50,000 scale OS Landranger Map (the ones with pink/magenta covers):
Some Photos and Pictures from Walk cw146 Craig Eigiau, Pen Llithrig y Wrach and Creigiau Gleision from Llyn Eigiau
In no particular order . . .

Tryfan and The Glyderau (Glyderau) from Cwm Tal-y-Braich below Pen Llithrig y Wrach

The Ogwen Valley with Tryfan and Y Garn prominent from the lower southern slopes of Creigiau Gleision

Glyder Fach (centre left), Glyder Fawr (centre) and Tryfan (centre right) from Pen Llithrig y Wrach
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