Carnedd Llewelyn

Llyn Llyffant is the highest lake in Wales, located at grid reference SH 687 645. Its name translates into English as "frog lake". It lies at an elevation of approximately 815m above sea level.

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.

Yr Elen is a mountain in the Carneddau range in Snowdonia, Wales. It is the ninth highest mountain in Snowdonia. The average annual temperature of the peak is around 4 °C (39 °F). It lies on a short ridge running north-northwest off the main northeast-to-southwest ridge of the Carneddau, just over one kilometre from Carnedd Llewelyn. It is usually climbed from the main ridge of the Carneddau, as it is only a short walk from Carnedd Llywelyn. It can also be climbed from Gerlan, near Bethesda, following Afon Llafar then heading up the slopes of Yr Elen, but this involves walking through wet valleys and a number of rivers that are difficult to cross. In drier times, ascent can be made via the crossing of Afon Caseg and then up the "front edge" of the peak. The views from this point north-west, over to Bangor and Anglesey, are stunning on a clear day, especially with a summer's sunset. This is well worth the arduous ascent. The etymology of the name is unclear, with the personal name "Helen" or "Eleanor" being one possibility, perhaps after Eleanor de Montfort (d. 1282), Princess of Wales and wife of Llywelyn ap Gruffudd. Another is the leech (from soft mutation of Welsh gelen, leech), perhaps in reference to the way in which Yr Elen appears to be attached to the side of the remaining Carneddau.

Ffynnon Llugwy (English: Llugwy spring) is a lake in the Carneddau range of mountains in Snowdonia, North Wales. It lies at a height of about 1,786 feet (544 m) and covers an area of some 40 acres (16.19 ha). It has a maximum depth of 146 ft (45 m).Since the early twentieth century water has been taken from its outflow, Afon Llugwy to feed Llyn Cowlyd via a series of leats. Since the mid 1970s the lake has additionally acted as a reservoir for Bangor and eastern Anglesey, which necessitated the laying of an 11-mile pipeline to the water treatment works at Mynydd Llandegai.It is the source of the River Llugwy (Welsh: Afon Llugwy) which flows via Capel Curig and Betws-y-coed before becoming a tributary of the River Conwy.

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.

Pen yr Helgi Du (Head or Hill of the Black Hound) is a mountain peak in the eastern part of the Carneddau in Snowdonia, Wales. It lies on the south-eastern flanks of Carnedd Llewelyn, and is linked to Carnedd Llewelyn over the col of Bwlch Eryl Farchog, a knife-edge ridge over the cliffs of Craig Yr Ysfa. From here the walker can drop down into Cwm Eigiau to the east or to the Ffynnon Llugwy reservoir to the south. Continuing over Pen yr Helgi Du to the east you will reach the even more beautifully named Pen Llithrig y Wrach (the slippery peak of the witch).

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.

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.

The Welsh 1000m Peaks Race takes place on the first Saturday in June each year. The 32 km route is also known as the Snowdonia Summits Marathon as competitors have to reach the top of all the 1000 metre peaks in Wales. Carnedd Llewelyn 1064m (3491 feet) Carnedd Dafydd 1044m (3425 feet) Glyder Fawr 1001m (3281 feet) Garnedd Ugain 1065m (3493 feet) and Snowdon (Yr Wyddfa) 1085m (3560 feet)Runners also have to pass through several other checkpoints; this gives a total of around 8000 feet of ascent for competitors. In previous years only the lower slopes of the Glyderau would be crossed, however in September 2010, the summit of Glyder Fawr was remeasured at 1001m.The organisers of the race included this summit from 2011. It is a tough endurance event and required navigational skills. The idea was the brainchild of Ron James, the warden of Ogwen Cottage Outdoor Pursuits Centre, along with Dr Ieuan Jones, who invited 60 people to participate in a trial event in 1970. The first race proper was held in 1971 with men starting from the shoreline at Abergwyngregyn, on the shoreline of Conwy Bay, and ladies from the Ogwen Valley. Both finished on the summit of Snowdon after which entrants were still responsible for their own safety and descent to the valley. The early events were for mountaineers, with kit checks to ensure boots were adequate & rucksacks a certain minimum weight, and groups such as West Bromwich Mountaineering Club participated every year. The Army supported the whole event, providing checkpoints throughout the route. Later a Fell running class was introduced and a team event. The Gorphwysfa Club took over the race organisation from the military in the 1990s. The fastest times are 3h 27m 20s recorded by Gavin Bland in 1999 and, for women, 4h 2m 39s by Angela Mudge also in 1999. The record for the team event (the accumulated times of the 3 best finishers) is 13h 41m 56s set in 1996 by the Reserves team of the Royal Regiment of Wales. The event is currently sponsored by the First Hydro Company.

Foel Meirch is a top of Carnedd Dafydd in the Carneddau range in Snowdonia, Wales. It offers commanding views of Carnedd Llewelyn and Yr Elen, and the Ysgolion Duon Cliffs.