Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau

A steep ascent to fine views of two valleys


Route outline for walk gw200:

Tanygrisiau  -  Moel-yr-hydd  -  Rhosydd Quarry  -  Moelwyn Mawr (North Ridge Top)  -  Moelwyn Mawr  -  Craigysgafn  -  Bwlch Stwlan  -  Moelwyn Bach  -  Llyn Stwlan  -  Stwlan Dam  -  Tanygrisiau



Points of Interest/Notes on this walk:

Rhosydd Quarry opened in 1840 and employed some 200 men. Since closing in 1930, the ruined buildings have become dangerous and unstable. Whilst a fascinating place to wander and imagine, best stay out of the buildings and tunnels.


Peaks, Summits and Tops reached on this walk:

hewitt
3
Welsh
Mountains
Wainwright
0
Wainwrights
 Welsh Nuttalls
4
Welsh
Nuttalls
Dewey
0
Welsh
Deweys
Wainwright Outlying Fell
0
Wainwright
Outlying Fells
marilyn
1
Welsh
Marilyn
Bridget
0
Bridgets

Peak Bagging Statistics for this walk:

The highest point of this walk is Moelwyn Mawr at 770m (2527ft). Moelwyn Mawr is classified as a Welsh Mountain (Hewitt) (43rd highest in Wales, 103rd highest in England & Wales)

Moelwyn Mawr is also known as a Welsh Nuttall (54th highest in Wales, 127th highest in England & Wales) and a Welsh Marilyn (19th highest in Wales, 448th highest in the UK).

Moelwyn Mawr means 'Big White Bare Hill' in Welsh. The summit of Moelwyn Mawr is marked by an Ordnance Survey Trig Point.

Completing this walk will also take you to the top of Moelwyn Bach at 710m (2330ft). Moelwyn Bach is classified as a Welsh Mountain (Hewitt) (64th highest in Wales, 159th highest in England & Wales)

Moelwyn Bach is also known as a Welsh Nuttall (83rd highest in Wales, 201st highest in England & Wales). Moelwyn Bach means 'Small White Bare Hill' in Welsh. The summit of Moelwyn Bach is marked by a cairn.

You will also reach the summit of Craigysgafn at 689m (2263ft). Craigysgafn is also known as a Welsh Nuttall (94th highest in Wales, 238th highest in England & Wales). Craigysgafn means 'Pile of Rocks' in Welsh.

Along the way you will also bag:


You can find more walks near this one on these unique free-to-access Interactive Walk Planning Maps: (click/TAP to select)

Snowdonia National Park


1:25,000 scale OS Explorer Map (the ones with orange/yellow covers):

OL18 Harlech, Porthmadog & Bala/Y Bala


1:50,000 scale OS Landranger Maps (the ones with pink/magenta covers):

115 Snowdon & Caernarfon


124 Dolgellau & Porthmadog


Some Photos and Pictures from Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau

In no particular order . . .

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Moelwyn Bach, Bwlch Stwlan, Craigysgafn, Moelwyn Mawr and Moelwyn Mawr (North Ridge Top) (far right) from the col below Moel-yr-hydd

Moelwyn Bach, Bwlch Stwlan, Craigysgafn, Moelwyn Mawr and Moelwyn Mawr (North Ridge Top) (far right) from the col below Moel-yr-hydd

Photo: Gerald Murphy (40)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Blaenau Ffestiniog with Manod Mawr beyond from the summit of Moel-yr-hydd

Blaenau Ffestiniog with Manod Mawr beyond from the summit of Moel-yr-hydd

Photo: Martin Talbot (20)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Moelwyn Bach (left) and Craigysgafn (right) from Stwlan Dam

Moelwyn Bach (left) and Craigysgafn (right) from Stwlan Dam

Photo: Gerald Murphy (39)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Cnicht and Cnicht (North Top) with The Snowdon Range beyond from Moelwyn Mawr

Cnicht and Cnicht (North Top) with The Snowdon Range beyond from Moelwyn Mawr

Photo: Gerald Murphy (53)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Croesor Quarry from Rhosydd Quarry

Croesor Quarry from Rhosydd Quarry

Photo: Steve Unwin (6)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Old mine incline near Rhosydd Quarry

Old mine incline near Rhosydd Quarry

Photo: Martin Talbot (15)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Cnicht and Cnicht (North Top) across Cwm Croesor from the summit of Moelwyn Mawr

Cnicht and Cnicht (North Top) across Cwm Croesor from the summit of Moelwyn Mawr

Photo: Martin Talbot (27)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Looking SW from Moelwyn Bach

Looking SW from Moelwyn Bach

Photo: Steve Unwin (15)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Sunset from Moelwyn Bach

Sunset from Moelwyn Bach

Photo: Steve Unwin (16)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - The north-west ridge of Molewyn Mawr (left) with Cnicht, Cnicht (North Top) and Ysgafell Wen (far right) across Cwm Croesor and Clogwyn Brith from the summit of Moelwyn Mawr

The north-west ridge of Molewyn Mawr (left) with Cnicht, Cnicht (North Top) and Ysgafell Wen (far right) across Cwm Croesor and Clogwyn Brith from the summit of Moelwyn Mawr

Photo: Martin Talbot (25)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - One of 2 Large holes at Rhosydd Quarry

One of 2 Large holes at Rhosydd Quarry

Photo: Gerald Murphy (43)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Ruined buildings and machinery in Rhosydd Quarry

Ruined buildings and machinery in Rhosydd Quarry

Photo: Martin Talbot (17)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Cnicht (centre) and Cnicht (North Top) (right) from the lower slopes of Moelwyn Bach

Cnicht (centre) and Cnicht (North Top) (right) from the lower slopes of Moelwyn Bach

Photo: Martin Talbot (35)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Tanygrisiau Reservoir (bottom left), Llyn Trawsfynydd and Moel Ysgyfarnogod (distance right) from the summit of Moel-yr-hydd

Tanygrisiau Reservoir (bottom left), Llyn Trawsfynydd and Moel Ysgyfarnogod (distance right) from the summit of Moel-yr-hydd

Photo: Martin Talbot (22)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Croesor Quarry from Rhosydd Quarry

Croesor Quarry from Rhosydd Quarry

Photo: Steve Unwin (5)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Descent path from Moelwyn Bach to Bwlch Stwlan with Llyn Stwlan below right

Descent path from Moelwyn Bach to Bwlch Stwlan with Llyn Stwlan below right

Photo: Gerald Murphy (37)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Summit of Moelwyn Bach

Summit of Moelwyn Bach

Photo: Gerald Murphy (44)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - The north-west ridge of Molewyn Mawr from the summit of Moelwyn Mawr

The north-west ridge of Molewyn Mawr from the summit of Moelwyn Mawr

Photo: Martin Talbot (26)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Blaenau Ffestiniog from Moelwyn Bach

Blaenau Ffestiniog from Moelwyn Bach

Photo: Gerald Murphy (36)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Moel yr Hydd from Moelwyn Mawr (North Ridge Top)

Moel yr Hydd from Moelwyn Mawr (North Ridge Top)

Photo: Gerald Murphy (38)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Ruined winding gear tower on Bwlch Stwlan

Ruined winding gear tower on Bwlch Stwlan

Photo: Martin Talbot (34)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Llyn Cwmorthin, Allt y Ceffylau and Allt-fawr from Moel-yr-hydd

Llyn Cwmorthin, Allt y Ceffylau and Allt-fawr from Moel-yr-hydd

Photo: Mike Knipe (200)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Craigysgafn and Moelwyn Mawr from Bwlch Stwlan

Craigysgafn and Moelwyn Mawr from Bwlch Stwlan

Photo: Steve Unwin (13)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Croseor and Porthmadoc from the summit of Moelwyn Mawr

Croseor and Porthmadoc from the summit of Moelwyn Mawr

Photo: Martin Talbot (29)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Craigysgafn from Bwlch Stwlan

Craigysgafn from Bwlch Stwlan

Photo: Gerald Murphy (52)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Cwm Croesor from Moelwyn Mawr

Cwm Croesor from Moelwyn Mawr

Photo: Steve Unwin (11)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Moel-yr-hydd, Llyn Stwlan, Tanygisiau Dam and Blaenau Ffestiniog from Craigysgafn

Moel-yr-hydd, Llyn Stwlan, Tanygisiau Dam and Blaenau Ffestiniog from Craigysgafn

Photo: Gerald Murphy (47)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Craigysgafn and Moelwyn Bach from the summit of Moelwyn Mawr

Craigysgafn and Moelwyn Bach from the summit of Moelwyn Mawr

Photo: Martin Talbot (31)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Approching the summit of Craigysgafn

Approching the summit of Craigysgafn

Photo: Martin Talbot (32)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Moelwyn Bach across Craigysgafn and Bwlch Stwlan from Moelwyn Mawr

Moelwyn Bach across Craigysgafn and Bwlch Stwlan from Moelwyn Mawr

Photo: Gerald Murphy (42)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - One of the many huge chasms at Rhosydd Quarry

One of the many huge chasms at Rhosydd Quarry

Photo: Steve Unwin (7)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Moelwyn Bach seen from Craigysgafn

Moelwyn Bach seen from Craigysgafn

Photo: Matthew Egan (9)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Rhosydd Quarry ruins with Cnicht (left) and Cnicht (North Top) beyond

Rhosydd Quarry ruins with Cnicht (left) and Cnicht (North Top) beyond

Photo: Martin Talbot (19)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Llyn Stwlan from Moelwyn Mawr

Llyn Stwlan from Moelwyn Mawr

Photo: Martin Talbot (23)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Ruined buildings in Rhosydd Quarry

Ruined buildings in Rhosydd Quarry

Photo: Martin Talbot (16)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Bwlch Stwlan and Craigysgafn from Stwlan Dam

Bwlch Stwlan and Craigysgafn from Stwlan Dam

Photo: Gerald Murphy (54)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Moelwyn Bach from Bwlch Stwlan

Moelwyn Bach from Bwlch Stwlan

Photo: Steve Unwin (12)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - The descent from Craigysgafn to Bwlch Stwlan

The descent from Craigysgafn to Bwlch Stwlan

Photo: Gerald Murphy (51)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Ysgafell Wen beyond Clogwyn Brith from the summit of Moelwyn Mawr

Ysgafell Wen beyond Clogwyn Brith from the summit of Moelwyn Mawr

Photo: Martin Talbot (28)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Tanygrisiau Reservoir from the summit of Moel-yr-hydd

Tanygrisiau Reservoir from the summit of Moel-yr-hydd

Photo: Martin Talbot (21)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Cnicht and Rhosydd Quarry from Moel-yr-hydd

Cnicht and Rhosydd Quarry from Moel-yr-hydd

Photo: Steve Unwin (9)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Disused incline in Rhosydd Quarry

Disused incline in Rhosydd Quarry

Photo: Martin Talbot (18)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Craigysgafn and Moelwyn Bach from Moelwyn Mawr

Craigysgafn and Moelwyn Bach from Moelwyn Mawr

Photo: Martin Talbot (24)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Moel-yr-hydd, Llyn Stwlan, Tanygisiau Dam and Blaenau Ffestiniog from Craigysgafn

Moel-yr-hydd, Llyn Stwlan, Tanygisiau Dam and Blaenau Ffestiniog from Craigysgafn

Photo: Gerald Murphy (46)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Craigysgafn and Moelwyn Mawr from Moelwyn Bach

Craigysgafn and Moelwyn Mawr from Moelwyn Bach

Photo: Steve Unwin (14)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Moelwyn Bach, Bwlch Stwlan, Craigysgafn and Moelwyn Mawr from near Rhosydd Quarry

Moelwyn Bach, Bwlch Stwlan, Craigysgafn and Moelwyn Mawr from near Rhosydd Quarry

Photo: Gerald Murphy (41)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Old rusting ladder stile on the lower slopes of Moelwyn Bach

Old rusting ladder stile on the lower slopes of Moelwyn Bach

Photo: Martin Talbot (36)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Moel-yr-hydd from Rhosydd Quarry

Moel-yr-hydd from Rhosydd Quarry

Photo: Steve Unwin (8)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Croseor with The Moel Hebog mountains beyond from the summit of Craigysgafn

Croseor with The Moel Hebog mountains beyond from the summit of Craigysgafn

Photo: Martin Talbot (33)

Walk gw200 Moel-yr-hydd, Moelwyn Mawr and Moelwyn Bach from Tanygrisiau - Tremadoc Bay/Bae Tremadog from the summit of Moelwyn Mawr

Tremadoc Bay/Bae Tremadog from the summit of Moelwyn Mawr

Photo: Martin Talbot (30)


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