Powys is a county and preserved county in Wales. It borders Gwynedd, Denbighshire and Wrexham to the north; the English ceremonial counties of Shropshire and Herefordshire to the east; Monmouthshire, Blaenau Gwent, Merthyr Tydfil, Caerphilly, Rhondda Cynon Taf and Neath Port Talbot to the south; and Carmarthenshire and Ceredigion to the west. From Wikipedia