Foel-fras

Llyn Dulyn (Welsh: black lake) is a lake on the edge of the Carneddau range of mountains in Snowdonia, North Wales. The lake is 33 acres (130,000 m2) in extent and 189 feet (58 metres) deep. Less than a kilometre to its south lies the smaller Llyn Melynllyn. Cliffs rise steeply from the lake edge up to the summits of Garnedd Uchaf and Foel Grach, giving it a dark brooding appearance - hence its name. The lake was dammed in 1881, to increase its capacity, and was significantly altered in 1931 by Llandudno Waterworks.As a reservoir Dulyn (along with Melynllyn) provided water for the town of Llandudno. The reservoir was repurposed in 1997 for use as hydroelectric generation. The outflow from the lake, the Afon Dulyn, also feeds water into neighbouring Llyn Eigiau. Afon Dulyn flows north-east, passing Tal-y-bont before joining the River Conwy. The cwm has been the site of a number of aeroplane crashes including that of an American Dakota aircraft which crashed into the cliffs above the lake in 1944 killing all four crew.

Llwytmor is a satellite peak of Foel-fras, and forms a part of the Carneddau range. The summit is 849 metres (2,785 ft) above sea level and it contains a series of boulderfields, a shelter and several cairns. It is the 27th highest peak in Wales. On a fine day to the north, the summit offers extensive views towards the Menai Strait, Anglesey and on exceptionally clear days the Isle of Man across the Irish Sea can be seen. The Lake District in England and the Wicklow Mountains in Ireland are also visible on clear days. Carneddau mountain ponies graze on the mountain throughout the year. Its full name Llwytmor Uchaf means "upper grey sea".

Gyrn Wigau is a summit of the Carneddau range in Snowdonia, Wales, and forms a part of the western Carneddau commonly known as the Beras. It is a top of Drosgl. It has only 15 metres of topographical prominence but is listed as a Nuttall.

Carnedd Gwenllian (named Y Garnedd Uchaf before 2009) is a minor summit of the Carneddau range in Snowdonia, Wales, and included in the Welsh 3000s. From the summit, distant views to the north can extend as far as Ireland and the Isle of Man, and to the South as far as the Berwyn Ranges. It lies between Foel Fras and Foel Grach, but is not always included in the Welsh 3000s, as its summit rises only slightly above the ridge. However, it is classed as a Hewitt. Its slopes, like all those in the northern Carneddau, are largely grassy, although they are steep. The slopes can receive significant accumulations of snow-drifts during blizzards in winter. In the past, snow beds have survived on the mountain as far as June. The annual average temperature on Y Garnedd Uchaf is relatively cold, ranging between 4-5 degrees Celsius.For some years there was a campaign by the Princess Gwenllian Society to have the name of this peak changed from Y Garnedd Uchaf to Carnedd Gwenllian. Gwenllian of Wales (1282–1337) was the only daughter of Llywelyn ap Gruffudd. After her father's death, she was held in a nunnery at Sempringham in Lincolnshire until she died. In September 2009, the summit was renamed Carnedd Gwenllian, and the Ordnance Survey agreed to use the dual name Carnedd Uchaf/Carnedd Gwenllian on its maps from 2010 onwards.

Y Drosgl is a summit of the Carneddau range in Snowdonia, Wales, and forms a part of the western Carneddau, also known as the Berau, meaning 'stacks' or 'ricks'. It lies on a ridge heading west from Carnedd Gwenllian and Bera Mawr towards Bethesda. A large ancient burial cairn, dating from the Bronze Age, adorns the summit, from where good views of Cwm Caseg and the Menai can be seen.

Drum (Welsh pronunciation: [ˈdrɨm]) (Welsh: Y Drum = the ridge) is a summit in the Carneddau mountains in Wales, 2 km north-east of Foel-fras. It is 771 m (2,526 ft) high. It is also known as Carnedd Penyborth-Goch. Its eastern slopes are drained by the Afon Tafolog, a tributary of Afon Roe which flows through the village of Rowen before joining the River Conwy.

Bera Bach is a summit, height 807 metres, in the Carneddau mountains in north Wales. It is part of a ridge leading west from Garnedd Uchaf. The summit is a rocky tor, characteristic of the northern Carneddau. Bera Mawr and Bera Bach are together known as the Berau, meaning 'ricks' or 'stacks'. They are both excellent examples of the area's tors. To the west, the ridge continues to Drosgl. Despite Bach in Welsh meaning small, it is higher than Bera Mawr (mawr in Welsh meaning 'big'). Bera Bach can be climbed either from Aber Falls, or alternatively from Bethesda via Gyrn Wigau and Drosgl.

Carnedd y Ddelw is a summit in the Carneddau mountains in Wales, north-east of Foel-fras. It is the Nuttall top of Drum (Wales). Its eastern slopes are drained by the Afon Tafolog, a tributary of Afon Roe that flows through the village of Rowen before joining the River Conwy. It is also the final top on Carnedd Llewelyn's long northern spur. To the north-west is Tal y Fan, the most northerly 2000 foot tall mountain in the Carneddau and Wales. The summit has two large shelter cairns, hollowed out from a large Bronze Age burial cairn.

Pen y Castell is a summit in the Carneddau mountains in north Wales. It tops the east ridge of Drum (Wales). The summit consists of rocky outcrops amid a small boggy plateau. Views of the higher Carneddau ridge to the west, Craig Eigiau to the south, Tal y Fan to the north and the Conwy valley to the east can be seen.

Bera Mawr is a summit in the Carneddau mountains in Wales, height 794 metres. It and Bera Bach are together known as the Berau, or northern Carneddau. The summit is a large rock tor, characteristic of the western Carneddau. There are views of Llwytmor and Foel-fras to the north-east, Garnedd Uchaf to the south-east, Bera Bach to the south, Drosgl to the west and the Menai to the north-west.The Berau lie to the northwest of the two highest mountains in the Carneddau range: Carnedd Llewelyn and Carnedd Dafydd, both are named after 13th century Princes of Wales, Llywelyn the Great (1172-1240), and his grandson Prince Dafydd ap Gruffudd (1238-1283). It was in a bog in the northern foothills of Bera Mawr, at a place called Nanhysglain, that Prince Dafydd ap Gruffudd and his family were betrayed and captured in June 1283 during the Conquest of Wales by Edward I. In October, Dafydd was executed at Shrewsbury on the orders of Edward I. His death marked the end of the 700-year rule of Gwynedd by the family descended from Cunedda Wledig and an independent Wales.

Foel Grach is a mountain in the Carneddau range. It is the eighth-highest summit in Snowdonia as well as Wales, and is included in the Welsh 3000s. It is located on a broad ridge extending northwards from Carnedd Llewelyn to Carnedd Gwenllian (formerly Y Garnedd Uchaf) and Foel-fras. An emergency refuge has been built below the summit. Compared to the surrounding mountains, much deeper snow settles here due to its rather broad summit and high grassy slopes. On clear days the Isle of Man and even the Mourne Mountains in Northern Ireland can be seen from the summit.

Llyn Melynllyn (Welsh for yellow lake) is a lake within the Carneddau range of mountains in Snowdonia, North Wales. It lies at a height of just over 2,000 feet (610 m), and has an area of some 18.5 acres (75,000 m2). Cliffs rise steeply from its western edge, up to the summit of Foel Grach, and down from which most of its feeder streams flow. A small dam was built at its northern end in 1887, but this was deliberately breached in 1970. The lake acts as a reservoir for the Llandudno area. Less than a kilometre to its north lies the larger Llyn Dulyn. The outflow from the lake is called Afon Melynllyn, this stream flowing north-east to join Afon Dulyn, itself a tributary of the river Conwy.