Sunderland, part of the Durham coalfield, has a coal-mining heritage that dates back centuries. Many of the exhibits relate to the now disused local Somerset coalfield and geology. It is part of a larger coalfield which stretched into southern Gloucestershire. Huyton-with-Roby is situated near to the south-western extremity of the former Lancashire coalfield. The Radstock Museum details the history of the Somerset coalfield. Exhibits relate to the coalfield and its geology. Mining of the early Northumberland Coalfield was taking shape. This had the advantage also of crossing the Somerset Coalfield. The eastern area reaches into parts of the Somerset Coalfield. The largest coalfield in Turkey is Elbistan. The county contained several mill towns and the collieries of the Lancashire Coalfield. The Somerset Coalfield is part of a larger coalfield which stretches into Gloucestershire. The Potteries Coalfield (part of the North Staffordshire Coalfield) covers . He recalls the event as the start of the Great Coalfield War. The town's years as a coalfield were unhappy.