List of mountain passes of Wales
Introduction The following is a list of notable mountain passes in Wales:Pass nameTranslation/alt. nameRoad numberOS grid ref of summitHistoric countyPrincipal areaNational Park?Maximum Elevation(m) NotesAberglaslyn PassA498CaernarfonshireGwyneddSnowdoniaBwlch Cerrig DuonEnglish: ''pass of the black stones''minor road between Trecastle and Swansea ValleyBrecknockshirePowysBrecon BeaconsBwlch y Cloddiaua.k.a. 'the Mohican Road'right of way between Llangurig and CwmystwythMontgomeryshirePowys533mRight of way. Eastern approach paved road; western approach largely unpaved.Bwlch Esgair Gelliroad between Abergwesyn and TregaronCardiganshireCeredigion472mBwlch ar y Fana.k.a. the Gap Roadrestricted byway between Pontsticill and BreconBrecknockshirePowysBrecon Beacons599mRocky track over the pass.Bwlchgylfin B4418 between Rhyd Ddu and Dyffryn NantlleCaernarfonshireGwyneddSnowdonia236mBwlch Oerddrws A470 between Dolgellau and Dinas MawddwyMerionethshireGwyneddSnowdonia363mBwlch y Parc A494 between Mold and Vale of ClwydDenbighshire Denbighshire291mthrough the Clwydian RangeBwlch Penbarrasa.k.a. 'Old Bwlch'minor road between Tafarn-y-Gelyn and Llanbedr-Dyffryn-ClwydDenbighshire Denbighshire362mthrough the Clwydian RangeBwlch Pen-y-feidioga.k.a. 'The Gated Road'minor road between Llanuwchllyn and BronaberMerionethshireGwyneddSnowdonia531mBwlch-y-Ddeufaen English translation: ''pass of the two stones''minor road/track between Abergwyngregyn and Vale of ConwyCaernarfonshireGwyneddSnowdonia429mCrimea Pass Welsh: ''Bwlch y Gorddinan''A470Caernarfonshire & MerionethshireGwyneddSnowdonia385mBwlch y GroesEnglish translation: ''pass of the cross''Commonly known as ''Hellfire Pass''minor road between Llanuwchllyn and Dinas MawddwyMerionethshireGwyneddSnowdonia545mHighest paved pass in North Wales.Gospel Pass Welsh: ''Bwlch yr Efengyl'' minor road from Hay-on-Wye to Vale of EwyasBrecknockshire PowysBrecon Beacons549m Highest paved pass in Wales.Horseshoe Pass Welsh: ''Bwlch yr Oernant'' (''pass of the cold stream'') A542DenbighshireDenbighshire417mMilltir GerrigEnglish translation: ''mile of stones''B4391 between Llangynog and BalaMerionethshireGwynedd Snowdonia486mNant Ffrancon PassA5 between Bethesda, Gwynedd, and Llyn Ogwen in ConwyCaernarfonshireGwyneddSnowdonia312mPengenfforddA470 between Talgarth and Vale of UskBrecknockshirePowysBrecon BeaconsPen-y-PassEnglish: ''Llanberis Pass''A4086Caernarfonshire GwyneddSnowdonia359mPen Rhiw-wenA4069 between Llangadog and BrynamanCarmarthenshireCarmarthenshireBrecon BeaconsRhiw FawrEnglish: ''Forge Road''minor road between Machynlleth and StaylittleMontgomeryshirePowys509mPen Bwlch LlandrilloDrovers road between Llanarmon Dyffryn-Ceiriog and Llandrillo/CynwydMerionethshireDenbighshire580mUnpaved drovers road over the pass.Storey Arms A470 between Brecon and Merthyr TydfilBrecknockshirePowysBrecon Beacons435mSychnant Pass Welsh: ''Bwlch Sychnant'' (''dry stream pass'')minor road between Dwygyfylchi and ConwyCaernarfonshireConwy158mTorpantau  minor road from Talybont-on-Usk to Pontsticill BrecknockshirePowysBrecon BeaconsBwlch Bryn-rhudd A4067Brecknockshire PowysBrecon 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.