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TOWER DRIFT MINE, HIRWAUN
CWMGORS COLLIERY
SOUTH WALES ELECTRIC COMPANY, UPPER BOAT POWER...
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TIR JOHN POWER STATION, SWANSEA
UNDERHILL WOOD EARLY COAL WORKINGS, JEFFREYSTON
TREFRAN CLIFF COLLIERY; TREFRANE CLIFF COLLIERY
BLACK CLIFF COLLIERY;NEWTOWN & NEWGALE COLLIERY