Blaencwm

Blaenrhondda is a village in the county borough of Rhondda Cynon Taf, Wales, lying at the head the Rhondda Fawr valley. Blaenrhondda is a village and is part of the community of Treherbert.

Blaenrhondda railway station served the village of Blaenrhondda, in the historical county of Glamorganshire, Wales, from 1890 to 1968 on the Rhondda and Swansea Bay Railway.

Tynewydd is a village located in the County Borough of Rhondda Cynon Taf, south Wales. With Treherbert, Blaencwm, Blaenrhondda and Pen-yr-englyn it is part of a community of Treherbert. The village lies in the former industrial coal mining area at the head of Rhondda Fawr, the larger of the Rhondda Valleys.

Mynydd Ty-Isaf, Rhondda is a Site of Special Scientific Interest near Treherbert in Rhondda Cynon Taf, south Wales.

The Bute Merthyr Colliery, in Treherbert in the Rhondda Valley, was the first colliery to produce steam coal in the Rhondda valley. A trial pit was dug in 1851, and the colliery was closed in 1926.

Blaenrhondda Road Cutting is a Site of Special Scientific Interest in Glamorgan, south Wales. Located along the A4061 road above the village of Blaenrhondda, Rhondda, the Blaenrhondda Road Cutting is of special interest for its rock exposures showing sediments that formed on the flood plain of a river delta during the Carboniferous period, approximately 310 million years ago.

The Rhondda Tunnel is an abandoned railway tunnel that runs between the Rhondda and the Afan Valleys in South Wales. It is 3,443 yards (3,148 m) long, making it the third longest railway tunnel in Wales, and the seventeenth longest in the United Kingdom.The tunnel, constructed by the Rhondda and Swansea Bay Railway, was engineered by Sydney William Yockney. In June 1885, construction commenced from Blaencwm in the Rhondda Valley and Blaengwynfi in the Afan Valley. Progress slowed because of manpower shortages and water seepage. Progress was restored when the original contractor, William Jones, was replaced by Lucas and Aird, who brought in more men. Completed on 2 July 1890, the tunnel has a single 58-foot (18 m) ventilation shaft around 105 yards (96 m) from its western end. It is almost 1,000 feet (300 m) feet below the surface at its deepest point. The tunnel's single track line split into double track on either side of its portals. Within decades of opening, the tunnel lining became distorted because of mining activity in the close vicinity. Between 1938 and 1953, around 500 steel ribs were installed to address the issue but it continued to deteriorate and speed limits were imposed. In 1969, the tunnel was closed temporarily on safety grounds. In December 1970, the Ministry of Transport closed the tunnel permanently, rather than financing repairs. In 1980, both entrances were filled. During the 2010s, the tunnel was surveyed with the intention of reopening it as a cycleway.

Treherbert railway station serves the village of Treherbert in Rhondda Cynon Taf, Wales. It is the northern terminus of the Rhondda Line, 23 miles (37 km) north west of Cardiff Central.

Treherbert (Welsh pronunciation) is a village and community situated at the head of the Rhondda Fawr valley in the county borough of Rhondda Cynon Taf, Wales. Historically part of Glamorgan, Treherbert is a former industrial coal mining village which was at its economic peak between 1850 and 1920. Treherbert is the upper most community of the Rhondda Fawr and encompasses the districts of Blaencwm, Blaenrhondda, Tynewydd and Pen-yr-englyn.

Pen y Cymoedd ("Head of the Valleys") is a wind farm located between Neath and Aberdare in south Wales. It opened in 2017.

Mynydd Llangeinwyr is the highest hill in the county borough of Bridgend in the coalfield of South Wales. It forms a long north-south ridge between the valleys of Cwm Garw to the west and Cwm Ogwr Fawr to the east. The highest point of the ridge is the 568-metre flat dome known as Werfa which is crowned by a trig point and prominent masts. A secondary trig point is sited at a height of 530 m near to the ancient cairn of Carn-yr-hyrddod. The hill is named from the village of Llangeinor below its southern tip.

Llyn Fawr ('large lake' in Welsh) is a reservoir that occupies one of a series glacial cirques that form the northern escarpment of the South Wales Coalfield uplands, overlooking the heads of the Vale of Neath and the Cynon Valley, South Wales. It is known as the site of an important hoard of weapons and tools from the late Bronze Age and early Iron Age. It lies on the northern flanks of Craig-y-Llyn, a mountain that is designated as a Site of Special Scientific Interest. The western cirque contains Llyn Fach ('small lake'). While in government terms, it falls in the unitary authority of Rhondda Cynon Taf, in geographic terms it is actually in the Vale of Neath and its excess waters (all its water before conversion) flow into Nant Gwrelych, which flows into the River Neath at Pont Walby near Glynneath. Less than 1 km to the southeast and south lie the headwaters of the Rhondda Fawr and Rhondda Fach rivers, while 1.5 km to the southwest lie the headwaters of River Corrwg.