Pumlumon Fach

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.

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.

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.

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.

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.

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.

Pen Pumlumon Arwystli is the second highest summit on the Plynlimon massif, a part of the Cambrian Mountains in the county of Ceredigion, Wales. The summit is grassy, and is marked by 3 large ancient cairns. 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 longest river in Britain, the River Severn, has its source on a lower boggy plateau to the north of the summit.

Blaenrheidol is a community in the county of Ceredigion, North Wales. It lies in the Cambrian Mountains of Mid Wales, approximately 12 miles (19 km) east of Aberystwyth on the A44 road, and includes Pumlumon. It includes the settlements of Ponterwyd, Ystumtuen and Llywernog. As the name suggests, a large section of the Afon Rheidol is in the community as well as the large man-made reservoir of Nant-y-moch.

Clipyn Du is a mountain in northern Powys in Wales. Also known as Tarren Bwlch-Gwyn or Siambwr Trawsfynydd, it is one of the higher summits of the area and is located a few miles north of Pumlumon. Tarren Bwlch-Gwyn is the name of a steep-sided escarpment nearby. It is classed as a HuMP, having over 100 metres of Topographic prominence. Nearby is a lake, Glaslyn.

Siambr Trawsfynydd is a mountain in Ceredigion, Wales, located to the north of Pumlumon. It is 582 m (1,910 ft) above sea level and one of the higher summits of the area. To the east is Glaslyn lake and the steep-sided Tarren Bwlch-Gwyn.

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.

Mwyngloddfa Nantiago is a Site of Special Scientific Interest in Brecknock, Powys, Wales. It is located on the eastern flank of the Plynlimon range of mountains. The spoil tips at the disused mine display examples of mineralisation.