High Quality Content by WIKIPEDIA articles! The Vale of Neath (or Neath Valley), one of the South Wales Valleys, encompasses the upper reaches of the River Neath in southwest Wales. In addition to the River Neath, it is traversed by the Neath Canal and the A465 dual carriageway. Settlements in the valley include: Neath, Cadoxton, Tonna, Aberdulais, Resolven, Blaengwrach, Glynneath and Pontneddfechan. Coal mining is now a growing industry in the valley with mining operations being located at Aberpergwm and Pentreclwydau near Glynneath.