Gullick Dobson chocks at Brynlliw Colliery
Coal transfer point at Brynlliw Colliery
Haulage engine at Brynlliw Colliery
Underground at Brynlliw Colliery
Pit bottom at Abernant Colliery
Road at Abernant Colliery
Pumping station at Abernant Colliery
Miner filling coal drams at Abernant Colliery
The Six Feet Seam at Brynlliw Colliery
Brynlliw Colliery
Pit bottom at Cwmtillery Colliery
Locomotive at Cwmtillery Colliery
Platform at Cwmtillery Colliery
Underground railroad at Cwmtillery Colliery
Locomotive pulling drams 1977
Underground loading point at Cynheidre Colliery
High speed conveyor at Cynheidre Colliery
Coal drams Celynen South Colliery
Underground junction at Marine Colliery
Haulage equipment at Celynen South Colliery
haulage system at Celynen South Colliery
Train underground at Cwmtillery Colliery
Coal face at Cwmtillery Colliery
A plough on the Garw seam at Cwmtillery Colliery