Cyfarthfa blast furnaces
Industrial Wales - South and Mid Glamorgan
Merthyr Tydfil
Around Merthyr, Dowlais and the Upper Taff Valleys
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The Industrial History and Archaeology of South and Mid-Glamorgan

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Merthyr Town

Quick links to :-     Merthyr Town     Cyfarthfa Ironworks     Cefn Coed and Morlais     Dowlais
Pant to Pontsticill     Torpantau     Merthyr Common     Pontypridd to Rhydycar

Georgetown - SO 0445 0665

Georgetown (named after George Crawshay) is one of the few remaining areas from Merthyrs past, dating from the 1820s. It includes Cyfarthfa Chapel, Joseph Parry's birthplace in a row of terraced cottages and an excavated section of the Glamorganshire Canal along with various relics from those times. Jacksons Bridge dates from 1791 and once carried the Dowlais Tramroad.

Ynys-fach Ironworks - SO 0452 0610

Ynys-fach Ironworks was built in 1801 by the Crawshays as an extension of their works at Cyfarthfa. There is a row of four derelict furnaces with the arches present and the blast passage behind next to a stone-built, four-storey blast engine-house of 1836. It was restored as a museum in 1989 and is open to the public.

The Vale of Neath Railway and other bridges

Plymouth Ironworks - SO 0560 0500

Plymouth Ironworks has long gone and little remains to mark it. The Merthyr (Penydarran) Tramroad ran in a tunnel under the site and one portal has been reconstructed to mark the 'oldest railway tunnel in the world'. The footbridge is typical but probably not original.

Pont-y-Cafnau - SO 0376 0713 (The bridge of troughs)

This bridge is the world's oldest known iron railway bridge, built in 1793. The deck was a cast-iron tube for the Gurnos leat with the Gurnos tramroad laid on it. Above was a wooden trough carrying the Taff Fawr leat. From 1929 to 1953 the leat was used to generate hydro-electricity, originally for the Corporation tram network, in the turbine house next to the bridge. The miniature railway in the Castle grounds seems a little incongruous amongst all this industrial dereliction.

Gurnos Tramroad and leat - SO 0358 0784
Gurnos Quarry - SO 0355 0835

The Gurnos Tramroad connected Cyfarthfa Ironworks with the Gurnos Quarry. It opened in c1793, also supplying limestone to the Plymouth Ironworks. A connection up the present exit drive to Cyfarthfa Castle was added in 1825 and use of the tramroad seems to fizzle out in the 1870s. The tramroad and leat run side by side from Pont y Cefn, on the corner of Cyfarthfa Castle to the quarries and weir at Gurnos. An excellent walk with many old sleeper blocks along the way. Up above them is a tower which could be a folly or a watchtower, no-one really knows.

Cyfarthfa Ironworks

Quick links to :-     Merthyr Town     Cyfarthfa Ironworks     Cefn Coed and Morlais     Dowlais
Pant to Pontsticill     Torpantau     Merthyr Common     Pontypridd to Rhydycar

Coke Ovens - SO 0370 0678

The Cyfarthfa coke ovens site was open to the public on the 7th September 2013 ('for one day only' as they say), courtesy of GGAT and the site developers. It turned out to be quite expensive as the Wife wanted feeding and some trinket or other to recompense for being dragged to Merthyr for the day. I couldn't resist a quick look at the amazing blast furnaces whilst I was there, could I? Johnny Crawford of GGAT has kindly supplied accurate details for each photo (far better than my memory or imagination) and a link to the full report of the excavations can be found in the 'Sources' section at the bottom of the page. The 'Thorne Electrical' works was built on this site after WW2 and demolished in 1993.

Blast Furnaces - SO 0383 0678

Vast structures, arches and tunnels of this great ironworks


Cefn Coed and Morlais

Quick links to :-     Merthyr Town     Cyfarthfa Ironworks     Cefn Coed and Morlais     Dowlais
Pant to Pontsticill     Torpantau     Merthyr Common     Pontypridd to Rhydycar

Cefn-coed-y-cwmmer

The Brecon and Merthyr Railway heads to Pontsticill

Danydarren Quarry - SO 0242 0904

Danydarren Quarry is a modern quarry at the site of an old limekiln. It appears to have been active in the 1960s with a system of chutes and conveyors over the top of two kilns which may be slightly older than the quarry, possibly the 1940s as there are some workings in 1948.

Vaynor Quarry - SO 0370 0975

Morlais Castle Quarries and tramroads

The Western Quarries Tramroad

The Western Quarries Tramroad connected both the Penydarran and Plymouth Ironworks with their quarries on Morlais Mountain. It appears to have been open by 1801 and, following the closure of Penydarran Ironworks 1859 and Plymouth ironworks in 1875, traffic had ceased completely by 1888. Most of the route can still be followed through the local streets.

The First Western Quarry - SO 0490 0945

All three quarries here were open by 1813 when they are shown on the draft OS map. They were worked by Dowlais, Plymouth and Penydarran Ironworks at one time or another but closed with Penydarran in 1859.

The Second and Third Western Quarries - SO 0475 0985

These later quarries were working by 1830. Quarrying began on the West side and progressively moved round to the North, apparently finishing in 1875.

The Eastern Quarries (Dowlais Ironworks) - SO 0530 0995

The Eastern Tramroad connected the Dowlais Ironworks with the Eastern quarries, opening in c1825 and linked by a 4'2" gauge tramroad by c1833 which was soon converted to a railway.

Twynau Gwynion - SO 0650 1060

The extensive limestone quarries at Twynau Gwynion were originally connected to Dowlais Ironworks until 1825 when Morlais East quarries became the ironworks main source of limestone. The various Rhymney ironworks took over these quarries and the Rhymney Limestone Railway was opened. As these quarries connected far more with the Rhynmey Valley than Merthyr, their story is told on the Northern Rhymney Valley page here :-
'The Northern Rhymney Valley'

Pant and Pontsticill

Quick links to :-     Merthyr Town     Cyfarthfa Ironworks     Cefn Coed and Morlais     Dowlais
Pant to Pontsticill     Torpantau     Merthyr Common     Pontypridd to Rhydycar

Pant

Pant Quarries

Ponsticill Sandpits - SO 0595 1070

A tramway ran down to sandpits near Pontsticill shown in full in 1875. By 1895 it had been cut back to the siding on the Pant - Pontsticill road though the sandpits are still shown. The sandpits are marked 'old' in 1919 but the curtailed tramway is still shown as 'old tramway' right up to 1952. Most of the route can be followed as a footpath.

The Brecon Mountain Railway

On to Pontsticill

Tyle Haidd Quarry - SO 0620 1045

Tyle'r-bont Limekilns and Baltic Quarry - SO 0614 1119

Tyle'r-bont limekilns (Odynau Tyle'r-bont) were in business by 1869 fed by a tramway from Baltic Quarry. It appears to have been owned by J H Williams of Battle. Latterly owned by the 'Tylerybont Lime and Limestone Co Ltd' which was dissolved in 1944. The quarry, kilns and tramway were shown as disused by 1948.


Torpantau

Quick links to :-     Merthyr Town     Cyfarthfa Ironworks     Cefn Coed and Morlais     Dowlais
Pant to Pontsticill     Torpantau     Merthyr Common     Pontypridd to Rhydycar

Torpantau Forestry

The nearest modern equivalent to an aerial ropeway. This is a log hauler in use at Torpantau in the Brecon Beacons. It was actually hauling a log down the hillside when I first saw it but was on its way back up and then stopped working !!

Torpantau Station and tunnel

The nearest modern equivalent to an aerial ropeway. This is a log hauler in use at Torpantau in the Brecon Beacons. It was actually hauling a log down the hillside when I first saw it but was on its way back up and then stopped working !!

Neuadd Reservoir railway, Torpantau - SO 0385 1700

The Neuadd Reservoir railway was built to Lower Neuadd reservoir in 1882-84 from a siding at Torpantau Station on the Brecon and Merthyr Railway. It seems to have been taken up when the reservoir was completed but relaid and extended to build Upper Neuadd Reservoir in 1896-1902. Again it was lifted when the reservoir opened and now forms part of the Taff Trail. The branch from Torpantau was standard gauge but 3ft lines are believed to have existed at the reservoir site.


Dowlais

Quick links to :-     Merthyr Town     Cyfarthfa Ironworks     Cefn Coed and Morlais     Dowlais
Pant to Pontsticill     Torpantau     Merthyr Common     Pontypridd to Rhydycar

Dowlais

From two walks in the Summer I found a vast amount of interesting sites around Dowlais.

Pengarnddu bridge and aqueduct - SO 0710 0882

The Brecon and Merthyr Railway around Pengarnddu bridge and aqueduct

Dowlais Top Station - SO 0799 0845

The Brecon and Merthyr Railway Dowlais Top Station house sits beside the Heads of the Valleys road in splendid isolation from any railway at all.


Merthyr Common

Quick links to :-     Merthyr Town     Cyfarthfa Ironworks     Cefn Coed and Morlais     Dowlais
Pant to Pontsticill     Torpantau     Merthyr Common     Pontypridd to Rhydycar

Tyle Dowlais Ironstone Mine - SO 0737 0735

Tyle Dowlais Ironstone Mine emerged from the depths of the Ffos-y-Fran opencast pit in December 2017 and Colin Roach took these aerial photos a few months later. The mine started in the early 1800s. By 1875 it was a large undertaking but was greatly diminished by 1900, fading slowly until the 1940s when tipping began to cover it over.

Merthyr Common - SO 0750 0600

Pen-y-darren Pits - SO 0820 0510

Pen-y-darren Pits was one of many supplying the various ironworks via an intricate web of tramways and inclines. Surprisingly, given it's name, this supplied the Dowlais Ironworks.

Cwm Bargoed Disposal Point - SO 0876 0612

Cwm Bargoed Disposal Point is the loading point for the Ffos-y-Fran opencast mine and the site of Cwm Bargoed station.

Taff Bargoed GWR / RR joint line - SO 0942 0426

Ffynnonau Duon Colliery, No 3 level - SO 0945 0395

Ffynnonau Duon Colliery, No 3 level, was open from 1970 to 1998. The site was generally cleared and the level sealed in 2008. Geoff Palfrey says "The machine in the photos is a late 1970's Atlas Copco GA 208 standard compressor with the motor stator and alloy cooler robbed for copper and aluminium, it’s an oil flooded rotary screw type, I installed and serviced dozens back in the day in Wales and the borders."


Acknowledgments, sources and further reading

Thanks for photos and information to :- Johnny Crawford, Philip Cumpstone, GGAT, Sian Herron, Phil Morgan, Geof Palfrey
Further Reading :- 'Merthyr Tydvil tramroads and their Locomotives' by Gordon Ratternbury and M J T Lewis
'Early Limestone Railways' by John van Laun, The Newcomen Society.
'Reservoir Builders of South Wales' by Harold Bowtell and Geoffrey Hill.
'Cyfarthfa Coke Works', a report by GGAT at this link to the report


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