Blaenrheidol

Y Garn is a subsidiary summit of Pen Pumlumon Fawr and the fourth highest peak on the Plynlimon massif, a part of the Cambrian Mountains in the county of Ceredigion, Wales. The summit is marked by a large shelter cairn, hollowed out from an ancient burial cairn. The views include Rhos Fawr, Drygarn Fawr, Pen y Garn to the south and Aran Fawddwy, Glasgwm, Tarrenhendre and Tarren y Gesail to the north. The Nant-y-moch Reservoir can also be seen to the north, with the smaller summits of Drosgol at 550 m (1,800 ft) and Banc Llechwedd-mawr at 560 m (1,840 ft). both Marilyns.

Nant-y-moch Reservoir (Welsh pronunciation ) is situated in the Cambrian Mountains in northern Ceredigion, Wales, near Pumlumon. The reservoir which flooded a part of the valley of the River Rheidol and its headwaters derives its name from a stream, the Nant-y-moch (in English = the pigs stream,), which formerly flowed into the River Rheidol at this spot. The dam is about three miles north of the village of Ponterwyd. The reservoir forms part of the Cwm Rheidol hydroelectric power scheme and the headwaters of the reservoir include the source of the River Rheidol. The Nant-y-moch component of the hydroelectric scheme has an installed capacity of 13 MW generated as the water from Nant-y-moch enters Dinas Reservoir.

Plynlimon, also spelled as Pumlumon in Welsh (also historically anglicised as Plinlimon and Plinlimmon), is the highest point of the Cambrian Mountains in Wales (taking a restricted definition of the Cambrian Mountains, excluding Snowdonia, the Berwyns and the Brecon Beacons), and the highest point in Mid Wales. It is a massif that dominates the surrounding countryside and is the highest point (county top) of Ceredigion (both the modern council area, and the historic county, also known as Cardiganshire). The highest point of the massif itself is Pen Pumlumon Fawr, which is 752 metres (2,467 ft) above ordnance datum. Its other important peaks are Pen Pumlumon Arwystli, Y Garn, Pen Pumlumon Llygad-bychan and Pumlumon Fach. Bryn yr Ŵyn, or Hill of the Lambs, is a Dewey in the foothills. The longest river in Britain, the River Severn, has its source on the mountain, as do the rivers Wye and Rheidol. Folklore says there is a sleeping giant in Plynlimon.

Pumlumon Fach is a top of Pen Pumlumon Fawr on the Plynlimon massif, a part of the Cambrian Mountains in the county of Ceredigion, Wales. It lies on small ridge heading north-west from the summit of Pen Pumlumon Fawr. The summit is marked by small cairn, and overlooks the Nant-y-moch Reservoir to the north and Llyn Llygad Rheidiol to the east. The views also include the smaller summits of Drosgol (550m) and Banc Llechwedd-mawr (560m) and Cwm Hyddgen, a hide out of Owain Glyndŵr and his army.

Eisteddfa Gurig is a hamlet located in Ceredigion on its border with Powys and situated along the A44. Its name comes from the Welsh word eisteddfa, meaning seat and the name of St Curig. This gives the meaning of Curig's seat. It is said that Curig rested on the hill here and looked down into the Wye Valley. He decided to build a church in the valley, which is still there today in the village of Llangurig.The famous Elvis Rock is located here.

Y Glog or Draws Drum is a mountain in Ceredigion, Wales. It is 574 metres (1883 feet) above sea level and is located a few miles south of Pumlumon, north of Pen y Garn and just south of the A44 road. It is a HuMP. It is located in an area of bleak moorland with the Cefn Croes Wind Farm and the small lakes Llynoedd Ieuan nearby.

The Elvis Rock is a rock alongside the A44 in Powys, Wales, near its border with Ceredigion. It is one of the most well known pieces of graffiti in Wales, with the word "ELVIS" written on it. The rock is located beside the main trunk road through the country, and appears out of context with the surrounding landscape.

Pen Pumlumon Llygad-bychan is a subsidiary summit of Pen Pumlumon Fawr and the third highest summit on the Plynlimon massif, a part of the Cambrian Mountains in the county of Ceredigion, Wales. It is not named on Ordnance Survey walking maps. The summit is boggy, and is marked by a few stones. The views include Rhos Fawr, Drygarn Fawr, Pen y Garn to the south and Aran Fawddwy, Glasgwm, Tarrenhendre and Tarren y Gesail to the north. The River Wye, has its source just south of the summit. The glacial lake of Llyn Llygad Rheidiol lies to the north.

Ystumtuen is a small village in northern Ceredigion, Wales. It is situated above the valley of the River Rheidol.It is situated on rocks rich in lead and silver and during a lengthy period in the 18th and 19th centuries, Ystumtuen was a bustling mining village. With the demise of the lead mining industry and in particular the closure of Cwm Rheidol mine, the population dwindled rapidly with the last ancestral population disappearing in the 1970s. This may in part have been due to the high lead content of the local spring sources. The village was re-populated for a time in the 1970s by hippy communities, and in recent years the population has been steadily increasing. There was a Youth Hostel run by the Youth Hostel Association in the old school, but this has now closed. The YHA sign was still there in 2021.

The Battle of Mynydd Hyddgen was a battle between the Welsh and English in June 1401. It was part of the Welsh revolt led by Owain Glyndŵr against English rule that lasted from 1400 to 1415. Its location was on the western slopes of Pumlumon, near the Ceredigion/Powys boundary.

Afon Mynach (Welsh pronunciation: [ˈmənaχ]; also known as the River Mynach) is a river in Ceredigion, Wales. Its source is at the meeting of two smaller rivers, the Nant Rhuddnant and the Afon Myherin. Both of these streams have their sources in lakes high in the Cambrian Mountains: the Afon Myherin flows from two lakes known collectively as Llynnoedd Ieuan; the much larger Nant Rhuddnant passes through Llyn Rhuddnant, above which it is formed by the confluence of several smaller streams.The Afon Mynach is notable for the famous Mynach Falls in the village of Devil's Bridge (Pontarfynach), where the river plunges 90 metres into the gorge of the River Rheidol. It is also famous for the three bridges built one on top of the other in the same village, the lowest of the three said to be built by the devil (hence the name Devil's Bridge), but most probably built by the monks of Strata Florida.

Mynach Falls (Welsh: Rhaeadr Mynach) is a waterfall near Aberystwyth in the county of Ceredigion, Wales. It occurs where the River Mynach drops 90 metres (300 ft) in 5 steps down a steep and narrow ravine before it meets the River Rheidol. The area is famous for the Devil's Bridge (Welsh: Pontarfynach - Bridge Over the Mynach River), a series of three arch bridges that span the river, one above the other. The area near the waterfall is the terminus of the Vale of Rheidol Railway.