River Tryweryn - The Tryweryn is a river in north Wales. It starts from Llyn Celyn in the Snowdonia National Park and after 19 km joins the river Dee at Bala. Water is stored in winter when flows are high, and release
River Dee - The River Dee, which is about 70 miles long, rises in the hills above Llanuwchllyn in the 'Dolgellau gold belt' of Merioneth (Gwynedd} and before it passes through Llyn Tegid (Bala Lake) it is known a
River Usk - The River Usk, Afon Wysg in Welsh, rises on the Black Mountain above the Usk Reservoir then the River Usk tumbles for most of its upper and middle reaches through the beautiful Brecon Beacons National
River Severn - The River Severn (Afon Hafren) is the longest British river, at 219 miles long. it rises at an altitude of 610 metres on Plynlimon known as Bryn Cras in North Wales, in the Cambrian Mountains. For abo
River Tywi - The Afon Tywi (Welsh) or River Towy (English) is the longest river which entirely runs through Wales. The total length of the River Tywi is 68 miles. Its numerous tributaries include the River Cothi,