(

Welsh Welsh may refer to: Related to Wales * Welsh, referring or related to Wales * Welsh language, a Brittonic Celtic language spoken in Wales * Welsh people People * Welsh (surname) * Sometimes used as a synonym for the ancient Britons (Celtic peop ...

for ''black river'') is the name of several

river A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases, a river flows into the ground and becomes dry at the end of its course without reaching another body of w ...

s in

Snowdonia Snowdonia or Eryri (), is a mountainous region in northwestern Wales and a national park of in area. It was the first to be designated of the three national parks in Wales, in 1951. Name and extent It was a commonly held belief that the na ...

in north-west

Wales Wales ( cy, Cymru ) is a country that is part of the United Kingdom. It is bordered by England to the east, the Irish Sea to the north and west, the Celtic Sea to the south west and the Bristol Channel to the south. It had a population in ...

: * The largest of these flows from

Llyn Cowlyd Llyn Cowlyd is the deepest lake in northern Wales. It lies in the Snowdonia National Park at the upper end of Cwm Cowlyd on the south-eastern edge of the Carneddau range of mountains, at a height of above sea level. The lake is long and narrow ...

on the south-eastern edge of the Carneddau range to join the river Conwy, passing Pont Dolgarrog on the B5106 road, just south of the village of

Dolgarrog Dolgarrog is a village and community in Conwy County Borough, in Wales, situated between Llanrwst and Conwy, very close to the Conwy River. The village is well known for its industrial history since the 18th century and the Eigiau ...

. The gorge cut by the river at this point is popular for gorge walking, the river passing at this point through a Site of Special Scientific Interest for broadleaved woodland and a number of rare species of plant.Afon Ddu - Gorge walking
/ref> * Another is a stream draining the south-eastern slopes of Drum and

Foel-fras Foel-fras (944 m) is a mountain in the Carneddau range, about 10 km east of Bethesda in Wales. It lies on the border between the counties of Gwynedd and Conwy. With a summit elevation of 944 m it is officially the eleventh-hig ...

, mountains in the

Carneddau The (lit. 'the cairns'; is a Welsh plural form, and is sometimes anglicised to ''Carnedds'') are a group of mountains in Snowdonia, Wales. They include the largest contiguous areas of high ground (over or high) in Wales and England (although l ...

mountain range. It is a tributary of

Afon Dulyn Afon Dulyn (English : ''River Dulyn)'' is the outflow from Llyn Dulyn, a lake in the Carneddau mountains in north-west Wales. It is a tributary of the river Conwy. Just below Afon Dulyn the river is joined by Afon Melynllyn, a small river fl ...

, itself is a tributary of the

river Conwy , name_etymology = , image = Boats in River Conwy.jpg , image_size = 300 , image_caption = Boats in the river estuary at Conwy , map = , map_size = , map_caption = , pus ...

. * A third is a stream flowing north-west from Bwlch y Ddeufaen. It is a tributary of the Afon Llanfairfechan, joining it immediately above the village of

Llanfairfechan Llanfairfechan ("Little St Mary's Parish") is a town and community in the Conwy County Borough, Wales. It is known as a seaside resort and had a population at the 2001 Census of 3,755, reducing to 3,637 at the 2011 Census. The history of the ...

. * A fourth is a tributary of the

River Dysynni , name_etymology = , image = Afon Dysynni & Morfa Gwyllt - geograph.org.uk - 194680.jpg , image_size = , image_caption = Dysynni estuary , map = , map_size = , map_caption ...

in the northern Dysynni Valley, famed for Craig y Deryn.

References

{{Authority control Rivers of Conwy County Borough Rivers of Snowdonia