Slates from quarries in Wales once went to roof the world. By the late nineteenth century as many as a third of all the roofing slates produced worldwide came f

For thousands of years slate has been quarried in Britain, but in Victorian times it became big business, and the legacy of the industry now shapes the landscap

The first published study of the history of slate quarrying in West Wales, describing almost 100 sites in Pembrokeshire, southern Cardiganshire and western Carm