Glamorganshire, a S. county of Wales, bordering on Caermarthenshire, Brecknockshire, Monmouthshire, the Severn, and Bristol channel; area, 855 sq. m.; pop. in 1871, 396,010. The northern portion is mountainous, but the southern is level and fertile. The principal crops are wheat, barley, oats, beans, peas, vetches, and turnips. The horned cattle are of superior quality, and in the mountain districts great numbers of sheep and ponies are reared. Glamorganshire is famous for its coal and iron mines. In the neighborhood of Merthyr-Tydvil the iron works are on a gigantic scale; within a small circuit are more than 60 blast furnaces, some of which have 6,000 workmen. Vast quantities of coal and iron are annually exported from Cardiff. This county has also some woollen manufactories, and numerous canals and railways. The principal rivers are the Rhymney, the Taff, and the Tawe. The chief towns are Cardiff, the capital, Merthyr-Tydvil, Swansea, and Neath.