PENARTH SLATE QUARRY, CORWEN
GLANAFON QUARRY, CAPEL GARMON
CROESOR SLATE QUARRY
RHOSYDD SLATE QUARRY
ABERCWMEIDDAW SLATE QUARRY
BRYN GLAS QUARRY, BLAENAU FFESTINIOG
RHOSYDD SLATE QUARRY, TRANSPORT FEATURES
GLYN RHONWY QUARRIES COMPLEX
FRIOG QUARRY, ARTHOG;GOLEUWERN SLATE QUARRY
GAEWERN QUARRY (SLATE)
PRECELLY QUARRY;BELLSTONE QUARRY
GORSEDDAU SLATE QUARRY
ABERLLEFENNI SLATE QUARRY
DINAS MAWDDWY SLATE QUARRY
LLECHWEDD SLATE QUARRIES
RATGOED QUARRIES (SLATE)
DINORWIC SLATE QUARRY
CWM MACHNO SLATE QUARRY;PENMACHNO SLATE QUARRY
PEN-YR-ORSEDD SLATE QUARRY, NANTLLE VALLEY
OAKLEY SLATE MINE AND QUARRY;GLODDFA GANOL QUARRY