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 highest peak in the Aran mountain range, the only peak in Wales outside North Snowdonia above 900m, and higher than anywhere in the United Kingdom outside Northern Snowdonia, the Scottish Highlands and the Lake District. The nearest small settlements 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.
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.
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.
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.
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.
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 Bala Lake. 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.
Esgeiriau Gwynion is a mountain in north Wales. It is the smallest of the three Marilyns that form the Aran range, the others being Aran Fawddwy and Glasgwm.
Foel Goch is a mountain in north-east Wales, and forms part of the Arenig mountain range. It is the only member of the Arenig group that lies outside of the Snowdonia National Park.
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.
