Hafren Forest

Pumlumon Cwmbiga is a summit of the Pumlumon mountain range in Ceredigion, Wales. It is 620 metres (2,034) feet above sea level and is a deleted Nuttall, only just missing out on the criteria. The nearby summit of Carnfachbugeilyn is slightly higher at 622 metres (2,041 feet).

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.

Bryn yr Ŵyn, or Hill of the Lambs, is a Dewey in the foothills of Plynlimon between Aberystwyth and Welshpool in Wales. The summit height is 502 m (1647 ft) and the prominence, or relative height, is 32 metres.

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.

Dylife is a former mining settlement in Powys, Wales, located at the head of Afon Twymyn in the Cambrian Mountains, one mile west of the road between Llanidloes and Llanbrynmair (B4518). It is in the historic county of Montgomeryshire. The nearby lead mines intermittently sustained mining communities from Roman times until the early 20th century. During the late 19th century, as mining declined after the 1860s so did Dylife's population. The remaining buildings are two former chapels converted into homes and the Star Inn.

Banc Bugeilyn is a hill found in Plynlimon between Aberystwyth and Welshpool in the United Kingdom; grid reference SN826925.The summit is class as a Dewey. The height of the summit from sea level is 551 m (1808 ft).

Staylittle (Welsh: Penffordd-las), sometimes referred to colloquially as Y Stay or Y Stae, is a small village set in the shallow upland basin of the Afon Clywedog on the B4518 road, equidistant from Llanidloes and Llanbrynmair in the historic county of Montgomeryshire, Wales, although now administered as part of the unitary authority of Powys.

Ffrwd Fawr is a waterfall in Powys, Wales.

The Dylife Gorge, located near Dylife, Powys, Mid Wales, was carved by the action (and aftermath) of the last Ice age. It is headed by the Ffrwd Fawr Waterfall. Before the last Ice age, the River Twymyn did not flow through the valley. When the valley was filled by a glacier, the ice ground out a U-shaped glaciated valley. When the glacier that filled the valley melted the Twymyn started to run down the wide channel left behind and the fast flowing river further eroded the valley, cutting the V-shaped gorge as seen today.The long-distance footpath Glyndŵr's Way (Welsh: Llwybr Glyndŵr) passes nearby.

The Clywedog Reservoir (Welsh: Llyn Clywedog) is a reservoir near Llanidloes, Wales on the head-waters of the River Severn. The construction of the reservoir was enabled by an Act of Parliament which asserted that "At certain times the flow of water in the river is inadequate ... unless that flow were regulated so as to ensure that at those times water in addition to the natural flow will flow down the river."

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.

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.