River Corrwg The Corrwg is one of the Afan's principal tributaries. Its length is approximately 11 km, and its source lies above the village of Glyncorrwg, in the hills south of Glyn-neath. It has a major tributary, Afon Corrwg Fechan, as well as numerous tributary streams. Several waterfalls exist along the river's course. Although the water is clear today, discharge from the many collieries along its lower reaches led to significant pollution. Minor discharge sometimes leaks from the Glyncorrwg colliery, although its effects do not have a noticeably detrimental effect on the river.
River Corrwg The Corrwg is one of the Afan's principal tributaries. Its length is approximately 11 km and its source lies above the village of Glyncorrwg, in the hills south of Glyn-neath. It has a major tributary, Afon Corrwg Fechan, as well as numerous tributary streams. Several waterfalls exist along the river's course. Although the water is clear today, dischar,ge from the many collieries along its lower reaches led to significant pollution. Minor discharge sometimes leaks from the Glyncorrwg colliery, although its effects do not have a noticeably detrimental effect on the river.