Looking down into deep chamber, Aberllefenni...
Inside open top chamber, Aberllefenni quarry
Open top chamber, Aberllefenni quarry
Era Quarry, Ceinws / Esgairgeiliog
Hendre Ddu Quarry
Hendre Ddu Quarry, Aberangell, Machynlleth
Looking in through the entrance to Rhiwgreiddyn...
Aberllefenni slate quarry 2015
Chamber to larger Esgairfoeleirin quarry
Looking into a quarry chamber, Esgairfoeleirin
Looking out from a chamber, Esgairfoeleirin quarry
Inside of a chamber, Esgairfoeleirin
Aberllefenni quarry, last week of underground...
Workers at Aberllefenni quarry, last week of...
Aberllefenni quarry, December 2003
