Afon Tanat is a river in northern Powys

Powys

Powys is a local-government county and preserved county in Wales.-Geography:Powys covers the historic counties of Montgomeryshire and Radnorshire, most of Brecknockshire , and a small part of Denbighshire — an area of 5,179 km², making it the largest county in Wales by land area.It is...

, Wales

Wales

Wales is a country that is part of the United Kingdom and the island of Great Britain, bordered by England to its east and the Atlantic Ocean and Irish Sea to its west. It has a population of three million, and a total area of 20,779 km²...

. Its source is close to the Cyrniau Nod

Cyrniau Nod

Cyrniau Nod is a mountain summit in north east Wales. It is the smaller of the two Marilyns that form the Berwyn range, the other being Cadair Berwyn. Its summit has the Snowdonia National Park boundary running through it...

 mountain, to the north of Lake Vyrnwy

Lake Vyrnwy

Lake Vyrnwy Nature Reserve and Estate is an area of land in Montgomeryshire, Powys, Wales, surrounding the Victorian reservoir of Lake Vyrnwy. Its stone-built dam, built in the 1880s, was the first of its kind in the world. The Nature Reserve and the area around it are jointly managed by the Royal...

. The river flows in a generally east-south-east direction until it joins the River Vyrnwy

River Vyrnwy

The River Vyrnwy is a river which flows through northern Powys, Wales, and Shropshire, England.The river used to be sourced from the many rivers and streams running off the mountains surrounding the Vyrnwy valley. However, since the Lake Vyrnwy dam was built in the 1880s, the river has flowed...

 near Llansantffraid-ym-Mechain

Llansantffraid-ym-Mechain

Llansantffraid-ym-Mechain is a village and community in Powys, Mid-Wales, close to the border with Shropshire, about south west of Oswestry....

. For a short distance prior to its confluence it flows within western Shropshire

Shropshire

Shropshire is a county in the West Midlands region of England. For Eurostat purposes, the county is a NUTS 3 region and is one of four counties or unitary districts that comprise the "Shropshire and Staffordshire" NUTS 2 region. It borders Wales to the west...

, England

England

England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west, with the North Sea to the east and the English Channel to the south separating it from continental...

. A number of other rivers act as its tributaries, including Afon Eirth, Afon Rhaeadr

River Rhaeadr

The River Rhaeadr is a river in Wales.It starts at the Pistyll Rhaeadr waterfall a few miles from the village of Llanrhaeadr-ym-Mochnant, where the Afon Disgynfa falls over a 240-foot cliff-face, after which the river is known as the Afon Rhaeadr....

, Afon Iwrch and Cynllaith.

External links

• Clwyd Powys Archaeological Trust - The Tanat Valley
• http://www.geograph.org.uk/photo/552226Photograph of the Tanat at Llangedwyn
  Llangedwyn
  Llangedwyn is a village in Powys, Wales at .It lies in the Tanat Valley near to the Wales/England border. It is approximately five miles from the small town of Llanfyllin and ten miles from the Shropshire market town of Oswestry. The Berwyn mountain range is nearby, as is Pistyll Rhaeadr waterfall...
  
  , at geograph.org.uk]