List of mountain passes of Wales


The following is a list of notable mountain passes in Wales:
Pass nameTranslation/alt. nameRoad numberOS grid ref of summitHistoric countyPrincipal areaNational Park?Maximum ElevationNotes
Aberglaslyn PassA498CaernarfonshireGwyneddSnowdonia
Ammanford PassLone Road, Clydach Road,SN663095CarmarthenshireAmmanford376mCAT2 Cycling Climb from Clydach
Bwlch Cerrig DuonEnglish: Pass of the Black Stonesminor road between Trecastle and Swansea ValleyBrecknockshirePowysBrecon Beacons
Bwlch ar y Fana.k.a. the Gap Roadrestricted byway between Pontsticill and BreconBrecknockshirePowysBrecon Beacons
BwlchgylfinB4418 between Rhyd Ddu and Dyffryn NantlleCaernarfonshireGwyneddSnowdonia236m
Bwlch OerddrwsA470 between Dolgellau and Dinas MawddwyMerionethshireGwyneddSnowdonia363m
Bwlch y ParcA494 between Mold and Vale of ClwydDenbighshireDenbighshire291mthrough the Clwydian Range
Bwlch Penbarrasa.k.a. 'Old Bwlch'minor road between Tafarn-y-Gelyn and Llanbedr-Dyffryn-ClwydDenbighshireDenbighshire362mthrough the Clwydian Range
Bwlch-y-DdeufaenWelsh: Pass of the Two Stonesminor road/track between Abergwyngregyn and Vale of ConwyCaernarfonshireGwyneddSnowdonia
Crimea PassWelsh: Bwlch y GorddinanA470Caernarfonshire & MerionethshireGwyneddSnowdonia385m
Bwlch y GroesEnglish: Hellfire Passminor road between Llanuwchllyn and Dinas MawddwyMerionethshireGwyneddSnowdonia545mHighest pass in North Wales.
Gospel PassWelsh: Bwlch yr Efengylminor road from Hay-on-Wye to Vale of EwyasBrecknockshirePowysBrecon Beacons549mHighest pass in Wales.
Horseshoe PassWelsh: Bwlch yr Oernant A542DenbighshireDenbighshire417m
Milltir GerrigEnglish: Mile of StonesB4391 between Llangynog and BalaMerionethshireGwyneddSnowdonia486m
Nant Ffrancon PassA5 between Bethesda, Gwynedd, and Llyn Ogwen in ConwyCaernarfonshireGwyneddSnowdonia312m
PengenfforddA470 between Talgarth and Vale of UskBrecknockshirePowysBrecon Beacons
Pen-y-PassEnglish: Llanberis PassA4086CaernarfonshireGwyneddSnowdonia359m
Pen Rhiw-wenA4069 between Llangadog and BrynamanCarmarthenshireCarmarthenshireBrecon Beacons
Rhiw FawrEnglish: Forge Roadminor road between Machynlleth and StaylittleMontgomeryshirePowys509m
Storey ArmsA470 between Brecon and Merthyr TydfilBrecknockshirePowysBrecon Beacons
Sychnant PassWelsh: Bwlch Sychnant minor road between Dwygyfylchi and ConwyCaernarfonshireConwy158m
Torpantauminor road from Talybont-on-Usk to PontsticillBrecknockshirePowysBrecon Beacons
Bwlch Bryn-rhuddA4067BrecknockshirePowysBrecon Beacons