Bontnewydd Palaeolithic site ⓘ cave and archaeological site in Wales
Cefn Caves ⓘ group of caves in Denbighshire, Wales
Kendrick's Cave ⓘ cave on the Great Orme, Wales
Ogof Pant-y-Wennol ⓘ archaeological site in Conwy County Borough, Wales, UK
Ogof Tan-y-Bryn ⓘ archaeological site in Conwy County Borough, Wales, UK
Rotunda or Grotto ⓘ Grade II listed building in Gwynedd. Set into the hillslope below Cliff House with panoramic views across the bay: accessed via steps and an arch from the main village road.
secret cave in Rhiwledyn ⓘ cave where the earliest printed book in Wales was produced
Aberglaslyn West, Plas Hebog, Stone Quarry. ⓘ stone quarry in Beddgelert, Gwynedd
Aberglaslyn, Parc Cae Morys, Stone Quarry ⓘ stone quarry in Beddgelert, Gwynedd
Aberllyn Mine ⓘ lead mine in Betws-y-Coed
Alexandra quarry ⓘ disused slate quarry in Gwynedd, Wales
Alexandra Quarry ⓘ slate quarry in Wales
Arenig quarry ⓘ slate quarry near Capel Celyn, Gwynedd (formerly Merionethshire), Wales, United Kingdom
Bettws Lead Mine ⓘ lead mine in Capel Curig
Blaen y Cae Slate Quarry ⓘ quarry in the UK
Blaen y Cwm Quarry ⓘ disused Welsh slate quarry in Blaenau Ffestiniog
Bodgynydd Lake Lead Mines ⓘ lead mine in Trefriw
Braich Ty Du: Quarry ⓘ stone quarry in Llanllechid, Gwynedd
Braich-Ddu quarry ⓘ Slate quarry near Trawsfynydd, Wales, United Kingdom
Bwlch Cwmllan quarry ⓘ
Bwlch Groes (Goddards) Mine ⓘ lead mine in Trefriw
Bwlch y Cwm quarry ⓘ slate mine near Blaenau Ffestiniog, Conwy County Borough, Wales, United Kingdom
Bwlch y Slaters quarry ⓘ Slate mine near Blaenau Ffestiniog, Gwynedd (formerly Merionethshire), Wales, United Kingdom
Bwlch-y-groes quarry ⓘ slate mine in Gwynedd, Wales
Bwlch-Y-Plwm ⓘ lead mine in Llanfrothen
Caer Gwaith Lead Mine ⓘ lead mine in Abergele
Caer Llugwy Lead Mine ⓘ lead mine in Capel Curig
Cefn-Du quarry ⓘ Slate quarry near Llanberis, Gwynedd, Wales, United Kingdom
Cefn-Yr-Ogof Lead Mine ⓘ lead mine in Llanddulas and Rhyd-y-Foel
Ceirionydd Lead And Zinc Vein ⓘ lead mine in Trefriw
Chwarel Ddu ⓘ former slate quarry west of Dolwyddelan, in Carnarvonshire, Wales, UK
Chwarel y Bryn ⓘ Bryn Hall quarry is an old flooded slate quarry near Llanllechid.
Cilgwyn quarry ⓘ former slate quarry in Gwynedd, Wales
Clogwyn Gwlyb Lead Mine ⓘ lead mine in Trefriw
Coed Mawr Pool Lead Mine ⓘ
Coed Mawr quarry ⓘ Slate quarry near Dolwyddelan, Wales, United Kingdom
Conglog Slate Quarry ⓘ former slate quarry in Wales
Craig y Fron Stone Quarry, Bala ⓘ stone quarry in Bala, Gwynedd
Croesor Quarry ⓘ slate mine near the village of Croesor, Gwynedd (formerly Merionethshire), Wales, United Kingdom
Cwm Eigiau quarry ⓘ Slate quarry in the Cwm Eigiau valley, Caerhun, Conwy County Borough, Wales, United Kingdom
Cwm Erch Copper Mine ⓘ scheduled monument in Wales
Cwt y Bugail quarry ⓘ former slate quarry east of Blaenau Ffestiniog in Wales
Dinmor Parc quarry ⓘ slate quarry near Penmon, Anglesey, Wales, United Kingdom
Diphwys Casson quarry ⓘ Disused slate quarry in North Wales
Dorothea Quarry ⓘ former slate quarry near Nantlle, in Carnarvonshire, Wales, UK
Drws y Coed Copper Mine ⓘ scheduled monument in Wales
Ffrith Tal-Y-Llyn Mine ⓘ lead mine in Trefriw
Ffrith y Coed quarry ⓘ Slate quarry halfway between Frongoch and Trawsfynydd, in Gwynedd (formerly Merionethshire), Wales, United Kingdom
Foel-Gron mine ⓘ Slate mine near Llan Ffestiniog, Wales, United Kingdom
Fron-Boeth and Pant Mawr Quarries ⓘ Two neighbouring disused slate quarries near Blaenau Ffestiniog, Gwynedd, Wales
Fucheslas Mine ⓘ lead mine in Trefriw
Gallt-y-Llan quarry ⓘ Slate quarry near Llanberis, Wales, United Kingdom
Gamallt Lead Mine ⓘ lead mine in Ffestiniog
Gamallt Lead Mine ⓘ lead mine in Ffestiniog
Gamallt Lead Mines ⓘ mine in Ffestiniog
Gilfach Copper Mine ⓘ scheduled monument in Wales
Glanrafon Slate Quarries ⓘ slate quarry in Betws Garmon, Gwynedd, Wales, UK
Gorlan Lead Mine ⓘ lead mine in Trefriw
Gorseddau Slate Quarry ⓘ quarry in the UK
Graig Ddu quarry ⓘ Disused slate quarry near Blaenau Festiniog in North Wales, UK
Gyrn quarry ⓘ Stone quarry on the mountain Gyrn, Gwynedd, Wales
Hafna Lead Mine Mill ⓘ
Hafna Lead Mne ⓘ lead mine in Trefriw
Klondyke Lead Mine ⓘ lead mine in Trefriw
Llanberis Mine ⓘ former copper mine near Llanberis in the historic county of Caernarfonshire, Wales, UK
Llanddulas quarry ⓘ Limestone quarry near the town of Llanddulas, Conwy County Borough, Wales, United Kingdom
Llandonna Lead Mine ⓘ lead mine in Llanddona
Llechwedd Slate Caverns ⓘ tourist attraction in Gwynedd, Wales
Llyn Y Manod ⓘ lead mine in Ffestiniog
Llyn Y Manod Mine ⓘ lead mine in Ffestiniog
Llynnau Gamallt ⓘ lead mine in Ffestiniog
Llynnau Gamallt Lead Mines ⓘ lead mine in Ffestiniog
Llynnau Gamallt Lead Mines i ⓘ lead mine in Ffestiniog
Llynnau Gamallt Lead Mines ii ⓘ lead mine in Ffestiniog
Moel Bowydd Zinc and Lead Mine ⓘ lead mine in Ffestiniog
Moel Siabod Hone Quarry ⓘ stone quarry in Dolwyddelan, Conwy County Borough
Moel Tryfan quarry ⓘ quarry in the UK
Moelfaban quarry ⓘ Slate quarry near Rachub, in Gwynedd, Wales, United Kingdom
Moelwyn Slate Quarry ⓘ Defunct slate quarry in Wales
New Pandora Mine ⓘ lead mine in Trefriw
Nyth-y-Gigfran Quarry ⓘ Disused slate quarry in Wales
Oakeley Quarry ⓘ Slate quarry in North Wales
Pantdreiniog quarry ⓘ Slate quarry in the town of Bethesda, Wales, United Kingdom
Parc Lead Mine ⓘ lead mine in Trefriw
Parc quarry ⓘ Disused slate quarry near Croesor in Gwynedd (formerly Merionethshire), Wales, United Kingdom
Parc-y-Meirch quarry ⓘ quarry near St George, Conwy County Borough, Wales
Park Lead Mine ⓘ lead mine in Capel Curig
Pen y Bryn / Cloddfa'r Lôn water-driven pump system ⓘ quarry in Llanllyfni, Gwynedd, Wales, UK
Pen Y Bryn Quarry and tips ⓘ quarry in the UK
Pen-Yr-Allt ⓘ lead mine in Betws-y-Coed
Pen-Yr-Allt Lead Mine ⓘ lead mine in Llanfrothen
Penmachno quarry ⓘ Disused slate quarry in North Wales
Penmaenmawr Quarry ⓘ quarry in the UK
Penrhyn Quarry ⓘ slate quarry
Penrhyn Quarry: relict areas, quarry hospital and underground levels ⓘ quarry in the UK
Pool Adit And Lead Mine Mill ⓘ lead mine in Betws-y-Coed
Prince of Wales Slate Quarry ⓘ slate quarry in Dolbenmaen, Gwynedd, Wales, UK
Pwll Vivian ⓘ lake in former quarry near Llanberis
Raynes quarry ⓘ Limestone quarry between the towns of Llanddulas and Old Colwyn, Conwy County Borough, Wales, United Kingdom
Rhiw-goch quarry ⓘ former quarry in Wales
Rhiwbach Quarry ⓘ disused slate quarry in North Wales
Rhos quarry ⓘ Slate quarry near Pont Cyfyng, Conwy County Borough, Wales, United Kingdom
Rhosydd Quarry ⓘ disused slate mine in North Wales
Serw quarry ⓘ Slate mine near Llan Ffestiniog, Conwy County Borough, Wales, United Kingdom
Sygun Copper Mine ⓘ copper mine and mining museum in Merionethshire
Bangor railway tunnel ⓘ railway tunnel carrying the Chester to Holyhead line at Bangor, North Wales
Blaenau Tunnel ⓘ railway tunnel in the UK
Conwy railway tunnel ⓘ railway tunnel in Conwy, North Wales
Glan-y-Bala Tunnel ⓘ railway tunnel in the UK
Goat Tunnel ⓘ railway tunnel in the UK
Llanberis Tunnel ⓘ railway tunnel in the UK
Llandygai Tunnel ⓘ railway tunnel at Llandygai in Gwynedd, North Wales, UK
Old Moelwyn Tunnel ⓘ abandoned tunnel of the Ffestiniog Railway in Wales
Penmaenbach Railway Tunnel ⓘ railway tunnel in the UK
Penmaenrhos tunnel ⓘ railway tunnel
Pont-y-Pant Lower Tunnel ⓘ railway tunnel in the UK
Pont-y-Pant Upper Tunnel ⓘ railway tunnel in the UK
Tregarth Tunnel ⓘ railway tunnel in the UK
Tunnel beneath Bangor Road at Plas Ty Coch ⓘ Grade II listed building in Caernarfon. On the E side of the house.
File:Tunnel Portal and Tunnel.jpgTunnel Portal and Tunnel ⓘ Grade II listed building in Llanllyfni. Located in the hillside to the north of Talysarn Hall.
