Location | |
---|---|
Location in Conwy | |
Location | near Cwm Penmachno |
County | Conwy County Borough |
Country | Wales, UK |
Coordinates | 53°00′18″N3°51′35″W / 53.005111°N 3.859802°W Coordinates: 53°00′18″N3°51′35″W / 53.005111°N 3.859802°W grid reference SH7522046962 |
Production | |
Products | Slate |
Type | Quarry |
History | |
Opened | c.1818 |
Active | c.1818-1909; 1909-1962 |
Closed | 1962 |
The Penmachno quarry (also known as Cwm Machno quarry, Rhiwfachno quarry, [1] or Tan-y-Rhiw quarry) was a slate quarry near Cwm Penmachno, Conwy, North Wales. It was directly below the Rhiwbach Quarry. It was worked between 1818 and 1962. [2]
This section needs expansion. You can help by adding to it. (March 2020) |
The quarry was originally known as the Tan-y-rhiw quarry, and it was recorded working in 1818. [2]
By 1872, the quarry was employing 72 workers, rising to 178 in 1898 at its peak. [3]
In 1909, the quarry stopped working for two weeks due to a general depression in the price of slates. [4]
In 1937, Penmachno employed 108 quarrymen. It continued working after the Second World War, eventually closing in 1962. [3]
Unlike most Welsh slate quarries, it had no railway connection to the outside world, and most of the slate it produced was taken by horse-and-cart to a wharf on the River Conwy at Trefriw. In 1868, the LNWR opened their line to Betws-y-Coed and from that date onwards slate could be hauled there, which was still a distance of nearly 7 miles (11 km) over rough mountain roads.
In the first decade of the 20th century a traction engine was purchased to haul the carts. This arrangement was later replaced by lorries. [2] Some slate was hauled up to Rhiwbach Quarry and taken out to Blaenau Ffestiniog over the Rhiwbach Tramway. There were proposals to link Penmachno and Rhiwbach quarries by tramway, but these proposals were never implemented. [3]
Internally, the quarry had a number of 2 ft (610 mm) gauge tramways and inclines. During the later years of operation a Motor Rail Simplex locomotive was purchased to work the lower tramway. Several proposals were made to connect the quarries by rail.
The quarry was near the head of the isolated valley of the River Machno, above Penmachno village. Its height on the mountain meant it had a relatively restricted water supply, and on several occasions work stopped due to drought, including in 1891. [5] It was worked as a series of galleried pits, as well as underground chambers. [3]
The highest point of the quarry was just above 1,000 feet (300 m) above sea level. The mills level, at the lower end, was at 609 feet (186 m) elevation. There were originally two pits, the upper working was known as Rhiw Fachno and the lower one was the main Cwm Machno quarry. Adits lead into the mountain from both pits to access the underground workings. About 25 feet (7.6 m) above the Rhiw Fachno pit was the quarry reservoir. [6]
The five main veins of Ordovician slate that pass through Blaenau Ffestiniog are the North, Back, Narrow, Main (or Old) and South (or New) veins. [7] As they head eastwards, the lower three thin out and disappear, so that by the time Cwt y Bugail Quarry is reached, only the North Vein and Back Vein are left. Immediately to the east of the Cwt y Bugail main adit, the strata are cut by the Dolwyddelan fault, and the same two veins re-appear at Rhiwbach and Penmachno, some 0.6 miles (1 km) further to the south east, and at a considerably lower altitude. [8]
The chair for the 2019 National Eisteddfod of Wales, held near Llanrwst, was made from slate from Penmachno quarry. [9]
Blaenau Ffestiniog is a town in Gwynedd, Wales. Once a slate mining centre in historic Merionethshire, it now relies much on tourists, drawn for instance to the Ffestiniog Railway and Llechwedd Slate Caverns. It reached a population of 12,000 at the peak development of the slate industry, but fell with the decline in demand for slate. The population of the community, including the nearby village Llan Ffestiniog, was 4,875 in the 2011 census: the fourth most populous in Gwynedd after Bangor, Caernarfon and Llandeiniolen. The population not including Llan is now only about 4,000.
Aberllefenni quarry is the collective name of three slate quarries, Foel Grochan, Hen Gloddfa and Ceunant Ddu, located in Cwm Hengae, just to the west of Aberllefenni, Gwynedd, North Wales. It was the longest continually operated slate mine in the world until its closure in 2003. Foel Grochan is the quarry on the north side of the valley, facing Ceunant Ddu and Hen Gloddfa on the south; all three were worked as a single concern throughout their history. Rock was mainly extracted underground, though all three quarries had open pits as well.
The Croesor Tramway was a Welsh, 2 ft narrow gauge railway line built to carry slate from the Croesor slate mines to Porthmadog. It was built in 1864 without an Act of Parliament and was operated using horse power.
The existence of a slate industry in Wales is attested since the Roman period, when slate was used to roof the fort at Segontium, now Caernarfon. The slate industry grew slowly until the early 18th century, then expanded rapidly until the late 19th century, at which time the most important slate producing areas were in northwest Wales, including the Penrhyn Quarry near Bethesda, the Dinorwic Quarry near Llanberis, the Nantlle Valley quarries, and Blaenau Ffestiniog, where the slate was mined rather than quarried. Penrhyn and Dinorwig were the two largest slate quarries in the world, and the Oakeley mine at Blaenau Ffestiniog was the largest slate mine in the world. Slate is mainly used for roofing, but is also produced as thicker slab for a variety of uses including flooring, worktops and headstones.
Penmachno is a village in the isolated upland Machno valley, 4 miles (6 km) south of Betws-y-Coed in the county of Conwy, North Wales. The B4406 road runs through part of the village. The village is at the confluence of the Glasgwm and Machno rivers. It has a five-arched, stone bridge dating from 1785. The village has been referred to as Pennant Machno, Llandudclyd and Llan dutchyd in historical sources.
The Rhiwbach Tramway was a Welsh industrial, 1 ft 11+1⁄2 in narrow gauge railway connecting the remote slate quarries east of Blaenau Ffestiniog with the Ffestiniog Railway. It was in use by 1862, and remained so until progressively closed between 1956 and 1976. The route included three inclines, one of which became the last operational gravity incline in the North Wales slate industry. The tramway was worked by horses and gravity for much of its existence, but a diesel locomotive was used to haul wagons on the top section between 1953 and its closure in 1961.
Cwm Penmachno is a village at the head of Cwm Machno in North Wales.
Maenofferen quarry is a major slate quarry in the town of Blaenau Ffestiniog, north Wales and one of the major users of the Ffestiniog Railway. It continues to produce crushed slate on a limited scale under the ownership of the nearby Llechwedd quarry.
Rhosydd quarry was a slate quarry in the Moelwyn mountains, northeast of Porthmadog in North Wales.
The Cwt y Bugail quarry is a former slate quarry located east of Blaenau Ffestiniog in Wales. It was first worked as a trial pit around 1840. Continuous production began in 1863 and continued until closure in 1961. The quarry was connected to the Ffestiniog Railway at Duffws Station via the Rhiwbach Tramway.
The Blaen y Cwm quarry was a slate quarry located east of Blaenau Ffestiniog in Wales. It was first worked in some time between 1813 and 1818 and sporadically after that until 1914. The quarry was connected to the Ffestiniog Railway at Duffws Station via the Rhiwbach Tramway.
Bro Machno is a community in Conwy County Borough, in Wales, formed from the former civil parish of Penmachno. It covers the Penmachno Valley, through which runs the Afon Machno, and includes the villages of Penmachno and Cwm Penmachno. To the south west borders Gwynedd, and is located 4.8 miles (7.7 km) south of Betws-y-Coed, 21.8 miles (35.1 km) north west of Corwen, and 19.4 miles (31.2 km) south of Conwy. The whole of the community is within the Snowdonia national park, while much of it forms part of Gwydir Forest. According to the 2011 census, the population of the Bro Machno Parish was 617, of whom 342 (55%) were able to speak Welsh and 214 (34%) had no skills in Welsh.
Rhiwbach quarry was a slate quarry located to the east of Blaenau Ffestiniog in North Wales. The quarry was a remote site; it was nearly 4 miles (6.4 km) to north-east of Duffws, the Festiniog Railway's terminus in Blaenau Ffestiniog. It was the connected to the Ffestiniog Railway by the Rhiwbach Tramway. Commercial operation began around 1812, and it finally closed in 1952. It was the last Welsh slate quarry where workers lived in barracks on the site. 'Rhiwbach' is Welsh for 'Little Hill'.
Votty & Bowydd quarry is a major slate quarry in the town of Blaenau Ffestiniog, North Wales. It was one of the major users of the Ffestiniog Railway. It opened in 1870 In the quarry's peak years around 1900, the quarry produced around 17,000 tons-per-annum of slate, employing 500 men. It continues to produce crushed slate on a limited scale under the ownership of the nearby Llechwedd quarry.
Graig Ddu quarry is a disused slate quarry near Blaenau Ffestiniog, in Gwynedd, North Wales. Although output was only about 3,000 tons a year, it reputedly has 36 saw tables and the same number of dressing machines on site. As with others in the area, the quarry suffered from a lack of water, resulting in the siting of the mill some distance away, at a lower level.
Nyth-y-Gigfran quarry was a slate quarry in the town of Blaenau Ffestiniog, North Wales. It was located about 300 feet (91 m) above the settlement of Glan y Pwll, south of what was to become Blaenau Ffestiniog. The quarry was sited on the steep cliffs that form the eastern edge of Allt-fawr and was entirely underground. The quarry opened around 1840 and became part of the Oakeley quarry in the 1880s; this in turn closed in 1969.
Wrysgan quarry was a slate quarry near the village of Tanygrisiau, Blaenau Festiniog, North Wales. It was worked intermittently from the 1830s, and was worked continuously from c.1850 until 1946. Wrysgan was an underground slate quarry, which was located on a small inaccessible site, some 1,390 feet (420 m) above sea level, to the west of Cwmorthin.
Owen Gethin Jones, was a Welsh building contractor, quarry owner and prominent poet.
Bwlch y Slaters quarry is a slate quarry near Blaenau Ffestiniog, in Gwynedd, North Wales.