Merionethshire
…Meirionydd). Merioneth was an important part of the Welsh slate industry in the nineteenth and twentieth centuries, with major quarrying centres at Blaenau Ffestiniog in the north of the county and Corris in the south, with other large quarries at Abergynolwyn, Aberllefenni, Arthog, and the Cwm Ebol quarry at Pennal…