Dyffryn Main Colliery

Llwynypia Rhondda Cynon Taff Joint Emergency Centre
Underfoot Expounder

Swansea West Cross Anti-Aircraft Operations Room
Underfoot Expounder

Cat Hole Cave
Underfoot Expounder

Cathole Cave

Dan yr Ogof

Grotto in Gnoll Estate

Llygad Llwchwr

Ogof Ffynnon Ddu

Ogof y Pebyll Cave

Porth yr Ogof

Tooth Cave, Llethrid

Aberaman Colliery

Abercwmboi Colliery

Aberdare Merthyr Colliery

Aber-gelli Colliery

Abergorky Quarry III, Coal Level II

Abergorky Quarry III, Coal Level I

Abergwawr Colliery

Abernant Colliery

Aberpergwm Mine

Achddu Colliery, Burry Port

Adare Colliery, Ynysawdre

Ammanford Colliery, Ammanford

Avon Colliery

Bedwlwyn Colliery

Beili-glas Colliery

Berthlwyd Colliery

Birdshill Quarry

Bishwell Colliery

Blaenant Colliery

Blaencaerau Colliery

Blaencorrwg Colliery

Blaengarw Colliery

Blaengrenig Coal Mine

Blaen-nant Colliery III

Blaen-nant Colliery

Blaen Ogwr

Blaen-y-cwm Colliery

Bodringallt Colliery

Boundary Level Colliery

Box Colliery

Bres Pit

Brithdir And Cwmdu Colliery

Broadoak Colliery

Bronbil Colliery And Tramway

Bryn Carnarvon

Bryn Colliery

Bryn Defaid Coal Mine

Bryn Defaid Mining Remains

Bryn-dewi Colliery

Brynlliw Colliery

Bryn-mawr Colliery

Budd's Rock Colliery

Bute Merthyr Colliery

Bwllfa Colliery

Bynea Colliery

Cae Colliery

Caeduke Colliery, Loughor

Caemain Pit

Cae'r-elm Coal Pit, Sandy, Llanelly

Caer-gynydd Colliery

Cae'r Mynydd Ventilation Furnace and Mine

Caernarfon Coal Pit

Cae-Sara Lead Mine

Cambrian Colliery

Cefn Arda Pit

Cefn Bryn, Mill Stone Quarry

Cefn-bychan Colliery

Cefn Coed Colliery Museum

Cefncoed Colliery

Cefn-goleu Colliery

Cefn-mawr Colliery

Cilfig Pit

Cille Colliery

Cilyrychen

Cincoed Limestone Quarries and Kilns

Clyne Valley Colliery

Clyne Valley Shaft Mounds

Clyne Valley Shaft Mounds, Swansea

Clyne Wood Coal Level

Clyn Gwernen Pit

Coalbrook, Old Coal Pit

Coal Levels, Maes Mawr, Pontyberem

Colliery, Cockett, Swansea

Colliery, Pen-clawdd

Colliery Remains, Clydach Valley

Colliery, Three Crosses

Colliery, Waunarlwydd

Corrwg Vale Colliery

C Pit

Craigavon Colliery

Craig-y-gigfran Coal Level, Aberdulais

Craig-yr-Odyn Quarry

Cribarth Limestone Quarries and Tramroads

Crimea Colliery And Canal Quay, Ystalyfera

Crug Farm Quarry

Cwm-capel Colliery, Burry Port

Cwmdare Colliery

Cwm Garw, Coal Level

Cwmgwineu Colliery

Cwm Mawr Coal Level, Bft

Cwmneol Colliery, Cwmaman

Cwm Pelenna Colliery Ventilation Furnace

Cynheidre Colliery

Cynon Colliery

Dare Colliery

Darran Colliery

Dinas Middle Colliery

D Pit

Drum Colliery, Bft 3.1

Drum Colliery, Coal Level 3, B

Drum Colliery, Level 1, Bft (3

Drum Colliery, Level 2, Bft (3

Drum Colliery, Shaft 1, Bft 3.

Drum Colliery, Shaft 2, Bft 3.

Drum Colliery, Shaft 3, Bft 3.

Dulais Resolven Colliery

Dulas Colliery

Dunraven Adare Colliery

Dunvant Penlan Collieries

Dunvant Penlan Colliery

Dyffryn Rhondda Colliery

Dyllas 1905 Coal Level I

Dyllas Colliery

Dynant Colliery

Dynevor Main Colliery

East Pit East Opencast Coal Site

Emlyn Anthracite Colliery

Emlyn Colliery, Pen-y-groes

Empire Colliery

Felin Fach Colliery

Felin Fran Colliery

Ferndale Coal Mine Shafts

Ferndale Colliery

Fernhill Collieries

Fforchaman Colliery

Fforchwen Coal Mine

Fforest-goch Colliery

Ffosfach Pit

Gadlys New Pit

Gadlys Old Pit

Garn-goch Colliery No.1

Garn-goch Colliery No.2

Garn-goch Colliery No.3

Garth Merthyr Colliery

Garth No.1 Colliery

Garth No.3 Colliery

Garwed Brook Coal Level, Resolven

Garw/Ffaldau Colliery

Genwen Colliery, Bynea

Glamorgan Colliery

Glan-mwrwg Coal Slant

Glenavon Colliery

Glenrhondda Colliery

Glyncastle Colliery

Glyncorrwg Colliery, Afan Valley

Glynea Pit, Bynea

Glynea Pit Engine House, Bynea

Gorllwyn Level

Gorse Colliery

Graig Colliery & Brick Works, Air Shaft

Graig Colliery & Brick Works, Coal Level Ii

Graig Colliery & Brick Works, Coal Level

Graig Colliery & Brick Works, Drift Mine

Graig Colliery & Brick Works

Graig Colliery

Graigola Colliery

Great Pit, Llansamlet

Grovesend Colliery

Gwainclawdd Colliery

Gwaunclawdd Colliery Level, Near Abercraf

Gwernllwynchwith Colliery, Llansamlet

Gwscwm Colliery

Half Way Colliery

Hendre-ladis Colliery

Henllys Vale Coal Mine And Quarry,cwmllynfell

High Dyffryn Colliery

Iron Ore Scours and Patch Workings at Winch Fawr, Merthyr Tydfil

Killan Colliery

Lady Margaret Colliery

Lefel Fawr Colliery, Abercraf

Lefel Flook, Bft 1.5

Llanerch Colliery

Llethr Las, Coal Level Iii

Llethr Las, Coal Level Ii

Llethr Las, Coal Level I

Llethr Las, Coal Level Iv

Llethr Las, Coal Level Vii

Llethr Las, Coal Level Vi

Llethr Las, Coal Level V

Llethr Las, Pit

Llety-shenkin Colliery (upper)

Lluest Colliery

Llwyn Du Colliery

Llwynhelig Colliery

Llwynhendy Coal Mine

Locomotive Type Steam Boiler, Blaen Rhondda

Lower Fan Pit

Lower Graigola Colliery

Maerdy Collieries: No.1 Pit And No.2 Pit, Maerdy

Maerdy Collieries: No.3 Pit And No.4 Pit, Maerdy

Maerdy Collieries No 3 Pit, Building Base

Maerdy Colliery

Main Colliery

Mardy Colliery

Marine Colliery, Tonna

Marsh Pit Colliery, Swansea

Melyn Colliery

Merthyrdare

Middle Dyffryn Colliery

Middle Fan Pit

Morlais Colliery, Llangennech

Mountain Colliery

Mynydd-bach-y-glo Colliery

Mynydd Cefn-y-gyngon, Coal Level Iii

Mynydd Cefn-y-gyngon, Coal Level I

Mynydd Cefn-y-gyngon, Coal Level Iv

Mynydd Cefn-y-gyngon, Coal Level Vii

Mynydd Cefn-y-gyngon, Coal Level Vi

Mynydd Cefn-y-gyngon, Coal Level V

Mynydd Cefn-y-gyngon, Pit I

Mynydd Cefn-y-gyngon, Trial Coal Level

Mynydd Maerdy Coal Level Ii

Mynydd Maerdy, Coal Level I

Mynydd-newydd Colliery

Mynydd Tyntyle, Coal Level Iii

Mynydd Tyntyle, Coal Level Ii

Mynydd Tyntyle, Coal Level I

Mynydd Tyntyle, Coal Level Iv

Mynydd Tyntyle, Coal Level Ix

Mynydd Tyntyle, Coal Level Liii

Mynydd Tyntyle, Coal Level Lii

Mynydd Tyntyle, Coal Level Li

Mynydd Tyntyle, Coal Level Liv

Mynydd Tyntyle, Coal Level Lix

Mynydd Tyntyle, Coal Level L

Mynydd Tyntyle, Coal Level Lviii

Mynydd Tyntyle, Coal Level Lvii

Mynydd Tyntyle, Coal Level Lvi

Mynydd Tyntyle, Coal Level Lv

Mynydd Tyntyle, Coal Level Lxiii

Mynydd Tyntyle, Coal Level Lxii

Mynydd Tyntyle, Coal Level Lxi

Mynydd Tyntyle, Coal Level Lxiv

Mynydd Tyntyle, Coal Level Lx

Mynydd Tyntyle, Coal Level Lxviii

Mynydd Tyntyle, Coal Level Lxvii

Mynydd Tyntyle, Coal Level Lxvi

Mynydd Tyntyle, Coal Level Lxv

Mynydd Tyntyle, Coal Level Viii

Mynydd Tyntyle, Coal Level Vii

Mynydd Tyntyle, Coal Level Vi

Mynydd Tyntyle, Coal Level V

Mynydd Tyntyle, Coal Level Xiii

Mynydd Tyntyle, Coal Level Xii

Mynydd Tyntyle, Coal Level Xi

Mynydd Tyntyle, Coal Level Xiv

Mynydd Tyntyle, Coal Level Xix

Mynydd Tyntyle, Coal Level Xliii

Mynydd Tyntyle, Coal Level Xlii

Mynydd Tyntyle, Coal Level Xli

Mynydd Tyntyle, Coal Level Xliv

Mynydd Tyntyle, Coal Level Xlix

Mynydd Tyntyle, Coal Level Xl

Mynydd Tyntyle, Coal Level Xlviii

Mynydd Tyntyle, Coal Level Xlvii

Mynydd Tyntyle, Coal Level Xlvi

Mynydd Tyntyle, Coal Level Xlv

Mynydd Tyntyle, Coal Level X

Mynydd Tyntyle, Coal Level Xviii

Mynydd Tyntyle, Coal Level Xvii

Mynydd Tyntyle, Coal Level Xvi

Mynydd Tyntyle, Coal Level Xv

Mynydd Tyntyle, Coal Level Xxiii

Mynydd Tyntyle, Coal Level Xxii

Mynydd Tyntyle, Coal Level Xxi

Mynydd Tyntyle, Coal Level Xxiv

Mynydd Tyntyle, Coal Level XXIX

Mynydd Tyntyle, Coal Level XX

Mynydd Tyntyle, Coal Level Xxviii

Mynydd Tyntyle, Coal Level XXVII

Mynydd Tyntyle, Coal Level Xxvi

Mynydd Tyntyle, Coal Level Xxv

Mynydd Tyntyle, Coal Level Xxxiii

Mynydd Tyntyle, Coal Level Xxxii

Mynydd Tyntyle, Coal Level Xxxi

Mynydd Tyntyle, Coal Level Xxxiv

Mynydd Tyntyle, Coal Level Xxxix

Mynydd Tyntyle, Coal Level Xxx

Mynydd Tyntyle, Coal Level XXXVIII

Mynydd Tyntyle, Coal Level Xxxvii

Mynydd Tyntyle, Coal Level Xxxvi

Mynydd Tyntyle, Coal Level Xxxv

Mynydd-y-drum Coal Patch 1, Bf

Mynydd-y-drum Coal Patch 2, Bf

Nant Cwm Gau, Coal Level

Nantewlaeth Colliery

Nantewlath Coal Mine Ruins

Nant Melin Colliery

Nant-y-bwlch, Coal Level Iii

Nant-y-bwlch, Coal Level Ii

Nant-y-bwlch, Coal Level I

Nant-y-bwlch, Coal Level Iv

New Cross Hands Colliery, Cross Hands

New Gored Merthyr Colliery

New Gorsllan Colliery

New Lodge Colliery

New Pool Colliery

New Wernddu Colliery

No.2 Ferndale Pit

No.4 Ferndale Pit

North Rhondda Colliery

Ochr-y-mynydd Level Iv

Ochr-y-mynydd Level Ix

Ochr-y-mynydd Level Viii

Ochr-y-mynydd Level Vii

Ochr-y-mynydd Level Vi

Ochr-y-mynydd Level V

Ochr-y-mynydd Level Xi

Ochr-y-mynydd Level X

Ochr-y-mynydd Tramming Level I

Ochyr-y-mynydd Coal Level I

Old Castle Colliery, Llanelli

Old Coal Levels To West Of Glyn-gwilym

Old Colliery

Old Dyffryn Colliery

Old Slant

Onllwyn Colliery, Coal Level 2

Onllwyn Colliery, Coal Level 3

Onllwyn Colliery, Coal Level 4

Onllwyn Colliery, Level 1, Bft

Onllwyn Colliery

Padell-y-bwlch, Coal Level Ii

Padell-y-bwlch, Coal Level I

Pantyffynnon Coal Mine

Parc Slip Colliery

Park Colliery

Penclawdd Colliery

Pencoed Coal Pit

Pencoed Lead Works

Pendyrys Colliery

Penlan Colliery

Penprys Colliery, Llangennech

Pentreclwydau Colliery

Pentre Colliery (Glamorgan, Wales)

Pentre Colliery, Pyle

Pentregwenlais quarry

Penwaen Coal Level

Pen-y-fan Colliery

Plas-y-coed Coal Mine

Pwllfaron Colliery

Rhondda Main Colliery

Rhondda Merthyr Colliery

Rock Colliery, Rheola Forest

Scott's Pit, Llansamlet, Swansea

St David's Pit, Llanelli

St George's Pit

St John's Colliery, Maesteg

Tadmore Pit

Tal Sarnau Colliery

Tal-y-fan-fach Coal Mine

Tal-y-wendda Drift Colliery

Tan-yr-heol Colliery

Tarenni Colliery

Techon Fach Colliery

Tir-ffordd Colliery, Llangyfelach

Tirherbert Colliery, Drift Entrance

Tirherbert Colliery

Tir Morfa Fawr

Tir-y-dail Colliery

Ton-pentre Colliery

Tor-cefn Colliery Mine Workings

Tower Colliery Opencast Mine Workings

Tower Colliery

Tower Drift Mine, Hirwaun

Tower Graig Level, Building Ii

Tower Graig Level, Building I

Tower Graig Level, Hirwaun

Tower (old) Colliery, Hirwaun

Tre-aman Colliery

Trewern Coal Mine

Tumble Colliery

Twyn Canwyllyr, Coal Level

Ty-draw Colliery

Ty-fry, Coal Level

Tyle-coch Colliery

Tynewydd Colliery

Tynybedw Colliery

Tyn-y-waun, Coal Level

Ty'n-y-waun Colliery

Tyrau Colliery

unnamed colliery

Upper Dyffryn Colliery

Upper Fan Pit

Upper Graigola Colliery

Waun-y-coed Colliery, Pontardawe

Weig Fawr Colliery

Welsh Main Colliery, Glyncorrwg

Welsh Main Colliery

Werfa Colliery

Wernddu Colliery

Wernffraith Colliery

West Colliery, Hendy

West Merthyr Colliery

Whitewalls Colliery

Whitworth Colliery

Winch Fawr Level V

Windber Colliery

Wyndham Pit

Y Darren Widdon And Darren Fach Mining Landscape, Ystalyfera

Ynys-arwed Colliery

Ynys-Faio Colliery

Ynys Pit And Leat, Mill Wood, Sketty, Swansea

Ysgubor-wen Balance Pit

Ysguborwen Coal Mine

South Wales Miners' Museum

Abernant Tunnel

Cildeudy tunnel

Cwmcerwyn Tunnel

Gelli Tunnel

Gyfylchi Tunnel

Penllergaer Tunnel

Rhondda Tunnel

Subway Under Railway