English: Map of the undefined region of South Wales, following the borders of the common definitions of South East Wales and South West Wales. Ceredigion, Breconshire and Radnorshire (latter two are part of Powys) are shaded in a lighter tone as they are sometimes considered Mid Wales, but historically defined as South Wales. All areas coloured with red and pale red are the historic definition of South Wales. Other modern definitions may have a smaller definition.