Braich Goch slate quarry, Corris. This is a copy of a postcard of Braich Goch slate quarry, Corris. The site was landscaped in 1975, obliterating the workings, mill and buildings. The Corris Craft centre and King Arthur's Labyrinth now sit above the former waste tip and mill. My dad, Ken Rowlands remembers being told when he was a boy that the large electrical switchboards on the Titanic ship were made of Welsh slate from Braich Goch quarry. The local author, the late Sara Eade researched and wrote a very good book about the Corris slate quarries including Braich Goch, called " Within These Hills" a study of Corris Uchaf.