BRONFLOYD LEAD MINE;BRYN LLWYD
CLOGAU SLATE QUARRY
MOEL FFERNA, SLATE MINE
VIVIAN SLATE QUARRY
ESGAIR LLE;ESGAIR LLU LEAD MINE;GREAT WEST VAN...
MYNYDD GORDDU LEAD MINE
PENARTH SLATE QUARRY, CORWEN
ESGAIRMWYN LEAD MINE, MINE WORKINGS COMPLEX
DINORWIC SLATE QUARRY WORKSHOPS;WELSH SLATE...
GORSEDDAU SLATE QUARRY
CWMORTHIN SLATE QUARRY
BRYNDYFI LEAD MINE; NEUADD LWYD LEAD MINE,...
BERWYN SLATE QUARRY AND FIELD SYSTEM
DINORWIC SLATE QUARRY
CROESOR SLATE QUARRY
MINERA LEAD MINES: TAYLOR'S SHAFT LEAD...
