MACHYNLLETH BRIDGE; PONT AR DDYFI
MAESPOETH LOCOMOTIVE SHED AND WORKSHOPS, CORRIS
CORRIS RAILWAY
WATER BALANCE INCLINE AT ABERLLEFENNI SLATE QUARRY
ABERLLEFENNI SLATE QUARRY
CYMERAU QUARRY (SLATE), SOUTH
ABERLLYFENNI
CORRIS
ABERCWMEIDDAW SLATE QUARRY
GAEWERN QUARRY (SLATE)
RATGOED QUARRIES (SLATE)
ABERCORRIS SLATE QUARRY
CORRIS VILLAGE