Cofeb Genedlaethol Lofaol
Tapestry: Big Pit Group Project - Blaenavon
FFRIDD ROMAN MINING SETTLEMENT
BRYNTAIL LEAD MINE
OCHR-Y-GOP SHAFT FIELD
SYGUN COPPER MINE, BEDDGELERT
CORS FOCHNO, BORTH BOG, PEAT CUTTING AND DRAINS
COPA HILL, CWMYSTWYTH, COMET LODE OPENCAST
CASTELL MINE; WEST ESGAIRLLE; NEW CASTELL;...
YSTRAD EINION LEAD, SILVER, ZINC AND COPPER MINE
FFESTINIOG PUMPED STORAGE SCHEME: FFESTINIOG...
PARYS MOUNTAIN COPPER MINES, AMLWCH
