Craig Cwm Sylin by munki-boy
Craig Cwm Sylin
Craig Cwm Sylin is in Snowdonia National Park in Wales.
Craig Cwm Silyn is one of the highest peaks on the Nantlle Ridge in Eryri (Snowdonia) National Park, standing at 734 metres (2,408 feet). It’s a prominent and rugged summit known for its steep cliffs and excellent views. The name means “rock of the Silyn valley,” with “Cwm Silyn” referring to the glacial valley to its north-east.
This mountain is the highest point on the Nantlle Ridge and a key objective for many walkers tackling the full ridge traverse. The approach is typically rocky, with a well-defined path in places, but sections of the route involve some scrambling and exposed ground, especially to the east. The summit itself is broad and rocky, marked by a trig point and stone shelter.
From the top, on a clear day, you can see Yr Wyddfa (Snowdon), Moel Hebog, and as far as the sea. To the west, the ridge continues towards Mynydd Graig Goch, while to the east it drops sharply towards Garnedd Goch and further along the ridge towards Y Garn (not to be confused with the better-known Y Garn near Ogwen).
Craig Cwm Silyn is less busy than many of Snowdonia’s central peaks, offering a wilder and more peaceful walking experience. It’s popular with experienced hillwalkers looking for a challenge and panoramic views without the crowds.
Created: 12 June 2025 Edited: 12 June 2025
Craig Cwm Sylin
Craig Cwm Sylin LiDAR Map
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Local History around Craig Cwm Sylin
There are some historic monuments around including:
Hut Circle and Rectangular Hut at Clogwyn y Gath Llystyn Gwyn Inscribed Stone Enclosed Hut Circle Settlement West of Votglas Gorseddau or Ynysypandy Slate FactoryCraig-y-Tyddyn CampDorothea Quarry Beam EngineHuts and Enclosures, Cwm Llefrith Gilfach Copper Mine Pen-yr-Orsedd Quarry, Blondins and Associated Structures Hut Circle East of Taleifion Small Fort Near Nantlle Enclosed Hut Group North-East of Llystyn Uchaf Ty Mawr East Slate Quarry Winding Engine House Mynydd Graig Goch round cairn Braich y Cornel Hut Circle Settlement and Field System Treforys Deserted Quarry SettlementEnclosed Hut Circle North-West of Tan Rhiw Cwm Llefrith cairn Cae-Bach Hut Circle Settlement Hut Circle Settlement Above Gilfach Ystrad Rural Settlement Craig Cwmbychan cairn Garnedd-goch round cairn Dolbenmaen Castle MoundHuts & Field Systems NE of NantllePrince of Wales QuarryHut Group and Field System E of Coed-y-Brain Hut Circle Settlement East of Cefn Bifor Hut Circles at Braich y Cornel Hut Group near Pen Llwyn, Carmel Hafod-y-Wern Long Hut Hafoty Ty-Newydd Enclosed Hut Group Cloddfa'r Lon Slate Quarry Hut Settlement at Mynydd Graig Goch, SouthHut Circle South of Cae'r Sais Hut Settlement at Mynydd Graig Goch, NorthBlaen y Cae Slate Quarry Hut Settlement at Mynydd Graig Goch, CentralCraig Cwm Silyn round cairn Cae'r Odyn Unenclosed Hut Drws y Coed Copper Mine Huts and Enclosures above Ceunant y Ddol Y Garn cairns Ty Coch Prehistoric Settlement Castell CaerauDorothea Quarry, Pyramids, Inclines, Mill & Winding Houses, etcDrws y Coed Prehistoric Settlement .
