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.
The Mill Folly Grotto including stone bridge, south of the Afon Llifon ⓘ Grade II listed building in Llandwrog. Situated approximately 200m east of the house, on the south side of the valley of the Afon Llifon.
Aberglaslyn West, Plas Hebog, Stone Quarry. ⓘ stone quarry in Beddgelert, Gwynedd
Aberglaslyn, Parc Cae Morys, Stone Quarry ⓘ stone quarry in Beddgelert, Gwynedd
Alexandra Quarry ⓘ slate quarry in Wales
Alexandra quarry ⓘ disused slate quarry in Gwynedd, Wales
Bwlch-y-groes quarry ⓘ slate mine in Gwynedd, Wales
Bwlch-Y-Plwm ⓘ lead mine in Llanfrothen
Carreg yr Imbill ⓘ peninsula
Carreg-y-Llam quarry ⓘ Disused granite quarry near Pistyll, Wales, United Kingdom
Cefn-Du quarry ⓘ Slate quarry near Llanberis, Gwynedd, Wales, United Kingdom
Cilgwyn quarry ⓘ former slate quarry in Gwynedd, Wales
Dorothea Quarry ⓘ former slate quarry near Nantlle, in Carnarvonshire, Wales, UK
Drws y Coed Copper Mine ⓘ scheduled monument in Wales
Eifl quarry ⓘ Granite quarry near Trefor, Wales, United Kingdom
Gallt-y-Llan quarry ⓘ Slate quarry near Llanberis, Wales, United Kingdom
Gilfach Copper Mine ⓘ scheduled monument in Wales
Glanrafon Slate Quarries ⓘ slate quarry in Betws Garmon, Gwynedd, Wales, UK
Gorseddau Slate Quarry ⓘ quarry in the UK
Gyrn Ddu quarry ⓘ Slate quarry near Llanaelhaearn, Gwynedd (formerly Caernarfonshire), Wales, United Kingdom
Llanberis Mine ⓘ former copper mine near Llanberis in the historic county of Caernarfonshire, Wales, UK
Moel Tryfan quarry ⓘ quarry in the UK
Pant Gwyn ⓘ lead mine in Llanengan
Parc quarry ⓘ Disused slate quarry near Croesor in Gwynedd (formerly Merionethshire), Wales, United Kingdom
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 ⓘ lead mine in Llanfrothen
Penrhynmawr Lead Mine ⓘ lead mine in Llanengan
Plas Yn Rhiw Quarry ⓘ stone quarry in Aberdaron, Gwynedd
Porth y Nant Stone Quarry ⓘ stone quarry in Pistyll, Gwynedd
Porth-Neigwl Lead Mine ⓘ lead mine in Llanengan
Prince Llewellyn quarry ⓘ Slate quarry in the Lledr Valley, Conwy County Borough, Wales, United Kingdom
Prince of Wales Slate Quarry ⓘ slate quarry in Dolbenmaen, Gwynedd, Wales, UK
Pwll Vivian ⓘ lake in former quarry near Llanberis
Sygun Copper Mine ⓘ copper mine and mining museum in Merionethshire
Tan Bwlch Lead Mine ⓘ lead mine in Llanengan
Tyddyn-Du ⓘ manganese mine in Gwynedd
Unknown ⓘ quarry in the UK
Unknown ⓘ quarry in the UK
Glynrhonwy Quarries ⓘ two adjacent former slate quarries in Carnarvonshire, Wales, UK
Hafod y Llan Slate Quarry ⓘ slate quarry in Beddgelert, Gwynedd, Wales, UK
Pen-yr-Orsedd quarry ⓘ former slate quarry near Nantlle, in Carnarvonshire, Wales, UK
Gimlet quarry ⓘ Granite quarry near Pwllheli. Quarried for stone paving sets by the Liverpool and Pwllheli Granite Company, which was established in 1867.
Fron Slate Quarry ⓘ slate quarry in Llandwrog, Gwynedd, Wales, UK
National Slate Museum ⓘ museum of the slate industry in Llanberis, North Wales, United Kingdom
Aberglaslyn Long Tunnel ⓘ railway tunnel in the UK
Aberglaslyn Short Tunnel ⓘ railway tunnel in the UK
Caernarfon Tunnel ⓘ former railway tunnel in Caernarfon, North Wales, re-used as road tunnel
Glan-y-Bala Tunnel ⓘ railway tunnel in the UK
Goat Tunnel ⓘ railway tunnel in the UK
Llanberis 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.
Tunnel Passage At Fort Williamsburg ⓘ
Tunnel Portal and Tunnel ⓘ Grade II listed building in Llanllyfni. Located in the hillside to the north of Talysarn Hall.
Derelict loading jetty at the disused Carreg-y-Llam quarry at Penrhyn Glas
Penrhyn Glas Viewed From Porth-y-nant
Penrhyn Glas
Penrhyn Glas Granite Quarry from the hillside above Porth y Nant
View west across the floor of the Carreg-y-Llam granite quarry
Quarry face at Carreg-y-Llam
Rock faces at the disused Carreg-y-Llam granite quarry. Penrhyn Glas
Rockface and spoil tips in the lower section of Carreg-y-Llam Quarry
The upper workings of the Carreg-y-Llam Quarry
View down to the lower workings of Carreg-y-Llam Quarry
