About the Book
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 44. Chapters: Mines in Wales, Mining in Wales, Volcanism of Wales, Snowdonia, Slate industry in Wales, List of geological faults of Wales, List of geological folds in Great Britain, Tonypandy Riots, Geology of Monmouthshire, Tyrone O'Sullivan, Shropshire Hills AONB, Welsh gold, Skomer, Geological structure of Great Britain, Avalonia, The Citadel, Geology of South Wales, Gravity anomalies of Britain and Ireland, Metal mining in Wales, Cwmystwyth Mines, List of shear zones of Great Britain, Merthyr Rising, Scotch Cattle, Uriconian, Breidden Hill, Minera Lead Mines, Cefn Bryn, South Wales Miners' Federation, Pitt's Head, Longmyndian Supergroup, Disturbance, Denbighshire Coalfield, Cribarth Disturbance, Neath Disturbance, Vale of Clwyd, Flintshire Coalfield, Farewell Rock, Marros Group, Carreg Cennen Disturbance, Rhondda Heritage Park, Ceibwr Bay Fault, Pot Hole Quarry, Claerwen Fault, Pembrokeshire Coalfield, Aber Dinlle Fault, Benton Fault, Berw Fault, South Wales Coalfield Collection, Pennant Measures, Bryntail lead mine, Cefn-cerig Road, Trefawr Track, Usk Inlier, Bala Fault, Coblynau, Cwm Llwyd Fault, North Wales Coalfield, Cwm Pennant Fault, Beddgelert Fault, Carmel Head Thrust, Welsh Borderland Fault System, Anglesey Coalfield, Bristol Channel Fault Zone, Bryneglwys Fault, Bronnant Fault. Excerpt: The slate industry in Wales began during the Roman period when slate was used to roof the fort at Segontium, now Caernarvon. The slate industry grew slowly until the early 18th century, then expanded rapidly until the late 19th century, at which time the most important slate producing areas were in northwest Wales, including the Penrhyn Quarry near Bethesda, the Dinorwic Quarry near Llanberis, the Nantlle Valley quarries, and Blaenau Ffestiniog, where the slate was mined rather than quarried. Penrhyn and Dinorwig were the two...
