Glyn Colliery
Glyn Colliery
Cilely Colliery
Cilely Colliery
Penallta Colliery
Penallta Colliery
Taff Merthyr Colliery
Taff Merthyr Colliery
Bedwas Colliery
Bedwas Colliery
7'-0" Seam
7'-0" Seam
Deep Navigation Colliery
Deep Navigation Colliery
Merthyr Vale Colliery
Merthyr Vale Colliery
Cwm Coedely Colliery
Cwm Coedely Colliery
Dulais (Drym) Colliery
Dulais (Drym) Colliery
Pontyberem Colliery
Pontyberem Colliery
Trimsaron Collieries
Trimsaron Collieries
Astley Green Colliery
Astley Green Colliery
Golbourne Colliery
Golbourne Colliery
Parkside Colliery
Parkside Colliery
Carway Colliery
Carway Colliery
Ponthenry Colliery
Ponthenry Colliery
Llay Main Colliery
Llay Main Colliery
6'-0" Seam Workings
6'-0" Seam Workings
Lady Windsor/Abercynon Colliery
Lady Windsor/Abercynon Colliery
Gwendraeth Valley
Gwendraeth Valley
Gresford Colliery
Gresford Colliery
Bersham Colliery
Bersham Colliery
Point of Ayr Colliery
Point of Ayr Colliery
North Wales Coalfield
North Wales Coalfield
North Rhondda Colliery
North Rhondda Colliery
Swansea 5ft Seam
Swansea 5ft Seam
Brynlliw Colliery
Brynlliw Colliery
Wern Tarw Colliery
Wern Tarw Colliery
Black Park, Brynkinallt & Ifton Collieries
Black Park, Brynkinallt & Ifton Collieries
Ogmore Vale Collieries
Ogmore Vale Collieries
Rhondda No3 Seam Workings
Rhondda No3 Seam Workings
9'-0" Seam Workings
9'-0" Seam Workings
Abergorky Colliery, Treorchi, Rhondda
Abergorky Colliery, Treorchi, Rhondda
Colliery Disasters
Colliery Disasters
Fernhill & Blaenrhondda Collieries
Fernhill & Blaenrhondda Collieries
Tower Colliery
Tower Colliery
Llwynypia Colliery
Llwynypia Colliery
Rhondda No2 Seam Workings
Rhondda No2 Seam Workings
Lewis Merthyr Colliery
Lewis Merthyr Colliery
Lancashire Coalfield
Lancashire Coalfield
Garw Ffaldau & International Collieries
Garw Ffaldau & International Collieries
Red Vein Seam
Red Vein Seam
Penllwyngwent Colliery
Penllwyngwent Colliery
Wyndham Western Colliery
Wyndham Western Colliery
Deutsches Museum Munich
Deutsches Museum Munich
Strata Control
Strata Control
Fossils
Fossils
1946 Mining adverts
1946 Mining adverts
Clyne Collieries
Clyne Collieries
Colliery Badges
Colliery Badges
Cambrian Colliery
Cambrian Colliery
Ffynondwym Level
Ffynondwym Level
Crynant Colliery, Crynant, Dulais Valley, Neath
Crynant Colliery, Crynant, Dulais Valley, Neath
Nantewlaeth Colliery
Nantewlaeth Colliery
Small (Private) Mines
Small (Private) Mines
Pentreclwydau Colliery
Pentreclwydau Colliery
Cwmgwrach and adjacent Collieries
Cwmgwrach and adjacent Collieries
Miscellaneous Collieries
Miscellaneous Collieries
Resolven Collieries
Resolven Collieries
Craig Y Pant Colliery
Craig Y Pant Colliery
Coal and Gas Outbursts
Coal and Gas Outbursts
Treforgan Colliery
Treforgan Colliery
Nant Hir No2 Colliery
Nant Hir No2 Colliery
Gleision Colliery
Gleision Colliery
Cefn Coed Colliery
Cefn Coed Colliery
Blaenant Colliery
Blaenant Colliery
Seven Sisters Colliery
Seven Sisters Colliery
Aberpergwm Colliery
Aberpergwm Colliery
Forest No3 Colliery
Forest No3 Colliery
Tyn'Waun Colliery
Tyn'Waun Colliery
Onllwyn Colliery Mine Plans
Onllwyn Colliery Mine Plans
Tyn'Waun Support Rules
Tyn'Waun Support Rules