The Afon Dringarth (or simply ''Tringarth'') is a river in

Powys Powys (; ) is a Local government in Wales#Principal areas, county and Preserved counties of Wales, preserved county in Wales. It is named after the Kingdom of Powys which was a Welsh succession of states, successor state, petty kingdom and princi ...

Wales Wales ( cy, Cymru ) is a Countries of the United Kingdom, country that is part of the United Kingdom. It is bordered by England to the Wales–England border, east, the Irish Sea to the north and west, the Celtic Sea to the south west and the ...

and wholly contained within the

Brecon Beacons National Park The Brecon Beacons National Park ( cy, Parc Cenedlaethol Bannau Brycheiniog) is one of three national parks in Wales, and is centred on the Brecon Beacons range of hills in southern Wales. It includes the Black Mountain (range), Black Mountain ...

. Its headwater streams drain the eastern slopes of

Fan Dringarth Fan Llia is a subsidiary summit of Fan Fawr in the Fforest Fawr section of the Brecon Beacons National Park, Wales. In common with other peaks in the Fforest Fawr uplands it lies within the county of Powys. The hill has the form of a broad ridge ...

(which is probably named after the river), the southern slopes of

Craig Cerrig-gleisiad Craig Cerrig-gleisiad is a subsidiary summit of Fan Fawr in the Fforest Fawr section of the Brecon Beacons National Park, South Wales. It makes up half of the Craig Cerrig-gleisiad and Fan Frynych National Nature Reserve with its sister peak Fan ...

and the western slopes of

Fan Fawr Fan Fawr ( Welsh 'great peak') is a mountain in the Fforest Fawr section of the Brecon Beacons National Park, in Powys, Wales and over 734 m (2,408 ft) high. The summit overlooks the steep eastern face and is marked by a cairn. Un ...

. The river flows south-southwest for about 6 km / 3.5 mi to its confluence with the

Afon Llia The Afon Llia is a short river in Powys, Wales, and which is wholly contained within the Brecon Beacons National Park. Several streams draining the eastern slopes of Fan Nedd and the western slopes of Fan Dringarth in the Fforest Fawr section of ...

one mile north of the village of

Ystradfellte Ystradfellte is a village and community in Powys, Wales, about north of Hirwaun, with 556 inhabitants. It belongs to the historic county of Brecknockshire (Breconshire) and the Fforest Fawr area of the Brecon Beacons National Park, beside the Af ...

, continuing south as the

Afon Mellte Afon Mellte or the River Mellte is a river in south Wales. It is formed by the confluence of the Afon Llia and the Afon Dringarth. It then flows south through the village of Ystradfellte to Pontneddfechan where it joins with the Nedd Fechan to ...

. The river may derive its name from the hill immediately to its west,

. The Afon Dringarth flows across ground formed from the

Old Red Sandstone The Old Red Sandstone is an assemblage of rocks in the North Atlantic region largely of Devonian age. It extends in the east across Great Britain, Ireland and Norway, and in the west along the northeastern seaboard of North America. It also exte ...

laid down during the

Devonian period The Devonian ( ) is a geologic period and system of the Paleozoic era, spanning 60.3 million years from the end of the Silurian, million years ago (Mya), to the beginning of the Carboniferous, Mya. It is named after Devon, England, wh ...

. The presence of areas of

glacial till image:Geschiebemergel.JPG, Closeup of glacial till. Note that the larger grains (pebbles and gravel) in the till are completely surrounded by the matrix of finer material (silt and sand), and this characteristic, known as ''matrix support'', is d ...

reveals that the area was inundated by ice during the ice ages. The waters of the river were impounded by a dam during the early 20th century to form

Ystradfellte Reservoir Ystradfellte Reservoir is a water storage reservoir on the Afon Dringarth in the upland area of Fforest Fawr within the Brecon Beacons National Park in South Wales. It lies just north of the village of Ystradfellte in the county of Powys at OS ...

.Brecon Beacons National Park
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External links

Images of Afon Dringarth and area on Geograph website

References

{{DEFAULTSORT:Dringarth

Afon Dringarth The Afon Dringarth (or simply ''Tringarth'') is a river in Powys, Wales and wholly contained within the Brecon Beacons National Park. Its headwater streams drain the eastern slopes of Fan Dringarth (which is probably named after the river), the ...

Rivers of the Brecon Beacons National Park Rivers of Powys