The Rhymney Valley () is one of the
South Wales valleys, with the
Rhymney River forming the border between the historic counties of
Glamorgan
Glamorgan (), or sometimes Glamorganshire ( or ), was Historic counties of Wales, one of the thirteen counties of Wales that existed from 1536 until their abolishment in 1974. It is located in the South Wales, south of Wales. Originally an ea ...
and
Monmouthshire
Monmouthshire ( ; ) is a Principal areas of Wales, county in the South East Wales, south east of Wales. It borders Powys to the north; the English counties of Herefordshire and Gloucestershire to the north and east; the Severn Estuary to the s ...
. Between 1974 and 1996 a Rhymney Valley local government district also existed (one of six of
Mid Glamorgan).
[Davies (2008), p. 755] The valley encompasses the villages of
Abertysswg,
Fochriw,
Hengoed,
Pontlottyn,
Tir-Phil,
New Tredegar,
Nelson,
Rhymney, and
Llanbradach, and the towns of
Bargoed,
Caerphilly
Caerphilly (, ; , ) is a town and community (Wales), community in Wales. It is situated at the southern end of the Rhymney Valley and separated from the Cardiff suburbs of Lisvane and Rhiwbina by Caerphilly Mountain.
It is north of Cardiff an ...
,
Ystrad Mynach and
Aberbargoed.
Geography

Created as a glacial valley, now the
Rhymney River flows largely south to
Rumney, a district of
Cardiff
Cardiff (; ) is the capital city, capital and List of urban areas in the United Kingdom, largest city of Wales. Cardiff had a population of in and forms a Principal areas of Wales, principal area officially known as the City and County of Ca ...
. The river is the ancient boundary between
Glamorgan
Glamorgan (), or sometimes Glamorganshire ( or ), was Historic counties of Wales, one of the thirteen counties of Wales that existed from 1536 until their abolishment in 1974. It is located in the South Wales, south of Wales. Originally an ea ...
and
Monmouthshire
Monmouthshire ( ; ) is a Principal areas of Wales, county in the South East Wales, south east of Wales. It borders Powys to the north; the English counties of Herefordshire and Gloucestershire to the north and east; the Severn Estuary to the s ...
.
Groesfaen, Deri, Pentwyn and Fochriw are located in the
Darran Valley and not the Rhymney Valley. This valley joins the Rhymney Valley at Bargoed
Llanbradach is a large village in the Rhymney Valley between Ystrad Mynach and Caerphilly,
History
This valley is one of the
South Wales Valleys, and its history largely follows theirs: sparsely populated until the nineteenth century; industrialised for
iron
Iron is a chemical element; it has symbol Fe () and atomic number 26. It is a metal that belongs to the first transition series and group 8 of the periodic table. It is, by mass, the most common element on Earth, forming much of Earth's o ...
,
steel
Steel is an alloy of iron and carbon that demonstrates improved mechanical properties compared to the pure form of iron. Due to steel's high Young's modulus, elastic modulus, Yield (engineering), yield strength, Fracture, fracture strength a ...
and
coal
Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams. Coal is mostly carbon with variable amounts of other Chemical element, elements, chiefly hydrogen, sulfur, oxygen, and nitrogen.
Coal i ...
;
industrial decline in the 1980s and 1990s. The Rhymney Valley produced a miner poet,
Idris Davies of Rhymney, famous for his poems associated with the locality and the struggles of its people.
The 1990s brought improved road connections to the valley—a dual carriageway running north from
Caerphilly
Caerphilly (, ; , ) is a town and community (Wales), community in Wales. It is situated at the southern end of the Rhymney Valley and separated from the Cardiff suburbs of Lisvane and Rhiwbina by Caerphilly Mountain.
It is north of Cardiff an ...
—increasing access to and from Cardiff and the
M4 motorway
The M4, originally the London-South Wales Motorway, is the third longest motorway in the United Kingdom, running from west London to southwest Wales. The English section to the Severn Bridge was constructed between 1961 and 1971; the Welsh ele ...
, and increasing the numbers of commuters from the valley to
Cardiff
Cardiff (; ) is the capital city, capital and List of urban areas in the United Kingdom, largest city of Wales. Cardiff had a population of in and forms a Principal areas of Wales, principal area officially known as the City and County of Ca ...
. The area is now one of the most populous in Wales.
The Rhymney Valley hosted the
National Eisteddfod in 1990.
There is a legend to explain how coal first came to be found in the Rhymney Valley. It is said that the local
fairies
A fairy (also called fay, fae, fae folk, fey, fair folk, or faerie) is a type of mythical being or legendary creature, generally described as anthropomorphism, anthropomorphic, found in the folklore of multiple European cultures (including Cel ...
were being pestered by a
giant
In folklore, giants (from Ancient Greek: ''wiktionary:gigas, gigas'', cognate wiktionary:giga-, giga-) are beings of humanoid appearance, but are at times prodigious in size and strength or bear an otherwise notable appearance. The word ''gia ...
. They asked help from an owl, who slew the giant. As the fairies burnt the giant's body, the ground burned away, exposing the coal.
Gorsedd Stones

The Rhymney Valley
Gorsedd Stones are located above
Bryn Bach Park, Tredegar on the site of the 1990
National Eisteddfod of Wales hosted by the
Rhymney Valley.
The stone circle consists of 12 standing stones arranged in a circle approximately 25m across with the tallest being 1.8m high a thirteenth stone marks the entrance to the circle. In the center is a flat stone known as the Logan stone. Stone circles of this type were erected on all sites of the National Eisteddfod until 2005 when as a cost-cutting exercise fibre-glass stone circles were used for the first time
51°46'35.6"N 3°16'46.1"W
Transport
*The
Rhymney Valley railway runs through the valley.
Bibliography
Further reading
* Evans, Marion, (1994), A Portrait of Rhymney with cameos of Pontlottyn, Tafarnaubach, Princetown, Abertysswg and Fochriw, volume 1. .
* Evans, Marion, (1995), A Portrait of Rhymney with cameos of Ponylottyn, Tafarnaubach, Princetown, Abertysswg and Fochriw, volume 2. .
* Evans, Marion, (1996), A Portrait of Rhymney with cameos of Pontlottyn, Tafarnaubach, Princetown, Abertysswg and Fochriw, volume 3. .
* Evans, Marion, (1998), A Portrait of Rhymney with cameos of Pontlottyn, Tafarnaubach, Princetown, Abertysswg and Fochriw, volume 4. .
* Evans, Marion, (2009), A Portrait of Rhymney with cameos of Pontlottyn, Tafarnaubach, Princetown, Abertysswg and Fochriw, volume 5. .
* Evans, Marion, (2007), The History of Andrew Buchan's Rhymney Brewery. .
References
{{coord, 51, 41, 52, N, 3, 13, 46, W, type:landmark_region:GB_dim:5000, display=title
Glamorgan
Valleys of Caerphilly County Borough
Valleys of Monmouthshire