The Afon Mawddach is a river in Gwynedd, Wales, which has its source in a wide area SH820300 north of Dduallt in Snowdonia. It is 28 miles (45 km) in length, and is much branched; many of the significant tributaries are of a similar size to the main river. The catchment area is bounded to the east by the Aran Fawddwy massif and to the west and north by the Harlech dome which forms a watershed just south of Llyn Trawsfynydd.
Aran Fawddwy is a mountain in southern Snowdonia, Wales, United Kingdom. It is the highest point of the historic county of Merionethshire. It is the only peak in Wales outside North Snowdonia above 900m, and higher than anywhere in Great Britain outside Northern Snowdonia, the Scottish Highlands and the Lake District. The nearest urban centres to the mountain are Dinas Mawddwy to the south, Llanymawddwy to the southeast, Llanuwchllyn on the shores of Bala Lake to the north, and Rhydymain to the west. The nearest settlements with around 2,000 people are Bala and Dolgellau. On the eastern slopes of Aran Fawddwy is the small lake named Creiglyn Dyfi, the source of the River Dyfi. Its sister peak is Aran Benllyn at 885 metres (2,904 ft). There is also a middle peak- Erw y Ddafad-ddu.
Bwlch y Groes is the second highest public road mountain pass in Wales, with a summit altitude of 545 metres (1,788 ft). Gospel Pass in south Wales is slightly higher. It lies on minor roads linking Dinas Mawddwy, Llanuwchllyn and Lake Vyrnwy. The view from the pass encompasses the plain of the Dyfi valley, Cadair Idris and a close view of Aran Fawddwy. The cross, just below the summit at the junction of the roads from Vyrnwy and from Dinas Mawddwy, commemorates the place of the pass on a pilgrim route from north Wales.
Dinas Mawddwy is a village in the community of Mawddwy in south-east Gwynedd, north Wales. It lies within the Snowdonia National Park, but just to the east of the main A470, and consequently many visitors pass the village by. Its population is roughly 600. The village marks the junction of the unclassified road to Llanuwchllyn which climbs up through the mountains to cross Bwlch y Groes at its highest point, the second highest road pass in Wales. This minor road also provides the closest access to the mountain Aran Fawddwy and is the nearest settlement to Craig Cywarch.
Maesglase is a mountain in Snowdonia, North Wales, situated approximately four miles to the south-west of Aran Fawddwy. It is the highest of the Dyfi Hills.
Pen Pumlumon Arwystli is the second highest summit on the Plynlimon massif, a part of the Cambrian Mountains in the county of Ceredigion, Wales.
Gwaun y Llwyni is a subsidiary summit of Aran Fawddwy in southern Snowdonia, Wales. It forms a part of the Aran mountain range.
Foel Hafod-fynydd is a subsidiary summit of Aran Fawddwy in southern Snowdonia, North Wales, Wales, United Kingdom. It tops the east ridge of Erw y Ddafad-ddu. Creiglyn Dyfi nestles in the bowl between Foel Hafod-fynydd and Aran Fawddwy.
Erw y Ddafad-ddu is a subsidiary summit of Aran Fawddwy in southern Snowdonia, North Wales, Wales, United Kingdom. It is the third highest peak in the Aran mountain range.
Aran Benllyn is a subsidiary summit of Aran Fawddwy in southern Snowdonia, North Wales, Wales, United Kingdom. It is the second highest peak in the Aran mountain range.
Waun Camddwr is a top of Aran Fawddwy in the south of the Snowdonia National Park in Gwynedd, Wales. It is the highest point on a wide boggy area between the summits of Aran Fawddwy and Glasgwm. It was surveyed after the first Nuttall list was compiled, and found to have just enough prominence to be included. The summit is a rocky outcrop amid an area of heather, long grass and peat bog. Gwaun y Llwyni rises to the south of the summit.
Gorllwyn is a subsidiary summit of Drygarn Fawr, located on a remote moorland plateau of the Cambrian Mountains. The summit is grassy and is surrounded by peat bog. There is a shelter cairn and a trig point.
Glasgwm is a mountain in Gwynedd, Wales forming part of the Aran range in southern Snowdonia. It is one of the three Marilyns that make up the range, the others being Aran Fawddwy and Esgeiriau Gwynion. To the west is Maesglase and the Dyfi hills, while to the south-west lies Cadair Idris. To the south lies the Plynlimon range. It is 779 metres (2,556 ft) high.
Carnedd y Filiast is a mountain near Cerrigydrudion on the border of the Snowdonia National Park, North Wales and is 669 metres (2,195 ft) high.
Arenig Fach is a mountain in southern Snowdonia, north Wales. It is a peak in the Arenig range and lies to the north of its parent peak Arenig Fawr.
Foel y Geifr is a subsidiary summit of Esgeiriau Gwynion, and included in a group of hills known as the Hirnantau. These hills rise from the south east shores of Llyn Tegid. Confusion arises when trying to establish to which mountain range these belong to. Since, Foel y Geifr forms part of the Hirnant horseshoe, many consider it to be a Berwyn peak. However, geographically it belongs to the Aran Fawddwy group, its parent peak being Esgeiriau Gwynion. It is the eastern outpost of the Arans.
Waun-oer is a mountain in Snowdonia, North Wales, situated approximately four miles to the south-west of Aran Fawddwy. It is one of the peaks in the Dyfi hills, a subgroup of the Cadair Idris group. It is a top of Maesglase and the summit consists of a trig point that crowns an uneven grassy plateau. It is connected to Cribin Fawr to the east and Mynydd Ceiswyn to the south. To the north lies Cadair Idris, while Tarren y Gesail lies to the west.
Pen yr Allt Uchaf is a subsidiary summit of Aran Fawddwy in the south of the Snowdonia National Park in Gwynedd, Wales. The summit is the highest point on a ridge branching off to the west of Aran Fawddwy's south ridge.
Llechwedd Du is a subsidiary summit of Esgeiriau Gwynion in north Wales. It forms a long peat bog plateau that start at the end of Esgeiriau Gwynion's south ridge, and ends with the higher summit of Moel y Cerrig Duon.
Moel y Cerrig Duon is a subsidiary summit of Esgeiriau Gwynion in Gwynedd in north Wales.
