List of mountain passes of Wales

The following is a list of notable mountain passes in Wales:

Pass name	Translation/alt. name	Road number	OS grid ref of summit	Historic county	Principal area	National Park?	Maximum Elevation(m)	Notes
Aberglaslyn Pass		A498	SH595465	Caernarfonshire	Gwynedd	Snowdonia
Bwlch Cerrig Duon	English: pass of the black stones	minor road between Trecastle and Swansea Valley	SN857227	Brecknockshire	Powys	Brecon Beacons
Bwlch y Cloddiau	a.k.a. 'the Mohican Road'	right of way between Llangurig and Cwmystwyth	SN854782	Montgomeryshire	Powys		533m	Right of way. Eastern approach paved road; western approach largely unpaved.
Bwlch Esgair Gelli		road between Abergwesyn and Tregaron	SN784576	Cardiganshire	Ceredigion		472m
Bwlch ar y Fan	a.k.a. the Gap Road	restricted byway between Pontsticill and Brecon	SO032205	Brecknockshire	Powys	Brecon Beacons	599m	Rocky track over the pass.
Bwlchgylfin		B4418 between Rhyd Ddu and Dyffryn Nantlle	SH555534	Caernarfonshire	Gwynedd	Snowdonia	236m
Bwlch Oerddrws		A470 between Dolgellau and Dinas Mawddwy	SH802170	Merionethshire	Gwynedd	Snowdonia	363m
Bwlch y Parc		A494 between Mold and Vale of Clwyd	SJ164582	Denbighshire	Denbighshire		291m	through the Clwydian Range
Bwlch Penbarras	a.k.a. 'Old Bwlch'	minor road between Tafarn-y-Gelyn and Llanbedr-Dyffryn-Clwyd	SJ162605	Denbighshire	Denbighshire		362m	through the Clwydian Range
Bwlch Pen-y-feidiog	a.k.a. 'The Gated Road'	minor road between Llanuwchllyn and Bronaber	SH784333	Merionethshire	Gwynedd	Snowdonia	531m
Bwlch-y-Ddeufaen	English translation: pass of the two stones	minor road/track between Abergwyngregyn and Vale of Conwy	SH712718	Caernarfonshire	Gwynedd	Snowdonia	429m
Crimea Pass	Welsh: Bwlch y Gorddinan	A470	SH699485	Caernarfonshire & Merionethshire	Gwynedd	Snowdonia	385m
Bwlch y Groes	English translation: pass of the cross Commonly known as Hellfire Pass	minor road between Llanuwchllyn and Dinas Mawddwy	SH913233	Merionethshire	Gwynedd	Snowdonia	545m	Highest paved pass in North Wales.
Gospel Pass	Welsh: Bwlch yr Efengyl	minor road from Hay-on-Wye to Vale of Ewyas	SO236352	Brecknockshire	Powys	Brecon Beacons	549m	Highest paved pass in Wales.
Horseshoe Pass	Welsh: Bwlch yr Oernant (pass of the cold stream)	A542	SJ195474	Denbighshire	Denbighshire		417m
Milltir Gerrig	English translation: mile of stones	B4391 between Llangynog and Bala	SJ 017305	Merionethshire	Gwynedd	Snowdonia	486m
Nant Ffrancon Pass		A5 between Bethesda, Gwynedd, and Llyn Ogwen in Conwy	SN649605	Caernarfonshire	Gwynedd	Snowdonia	312m
Pengenffordd		A470 between Talgarth and Vale of Usk	SO173300	Brecknockshire	Powys	Brecon Beacons
Pen-y-Pass	English: Llanberis Pass	A4086	SH646556	Caernarfonshire	Gwynedd	Snowdonia	359m
Pen Rhiw-wen		A4069 between Llangadog and Brynaman	SN732184	Carmarthenshire	Carmarthenshire	Brecon Beacons
Rhiw Fawr	English: Forge Road	minor road between Machynlleth and Staylittle	SN837884	Montgomeryshire	Powys		509m
Pen Bwlch Llandrillo		Drovers road between Llanarmon Dyffryn-Ceiriog and Llandrillo/Cynwyd	SJ091365	Merionethshire	Denbighshire		580m	Unpaved drovers road over the pass.
Storey Arms		A470 between Brecon and Merthyr Tydfil	SN983203	Brecknockshire	Powys	Brecon Beacons	435m
Sychnant Pass	Welsh: Bwlch Sychnant (dry stream pass)	minor road between Dwygyfylchi and Conwy	SH750770	Caernarfonshire	Conwy		158m
Torpantau		minor road from Talybont-on-Usk to Pontsticill	SO052172	Brecknockshire	Powys	Brecon Beacons
Bwlch Bryn-rhudd		A4067	SN870195	Brecknockshire	Powys	Brecon Beacons

References

Where not otherwise specified, much information is taken from 1:25,000 and 1:50,000 scale maps published by the Ordnance Survey.