Gallt yr Ogof

Y Foel Goch is a mountain in Snowdonia, north-west Wales, and is a sister peak along with Gallt yr Ogof to Glyder Fach. Between Glyder Fach and its summit lies Llyn Caseg-fraith, a popular lake for photographing Tryfan and its reflection. The summit is grassy with a few small rock outcrops and is marked with a small cairn. The views are limited to the bulky neighbours of Moel Siabod, Tryfan and Glyder Fach. The ridge continues eastwards to Gallt yr Ogof.

Dyffryn Mymbyr is a valley in Snowdonia, in north-west Wales, approximately 5 miles (8.0 km) in length, and leading up from Capel Curig to the Pen-y-Gwryd hotel. The river Nantygwryd, originally called Y Mymbyr in Llywelyn the Great's charter of 1198, starts at Llyn Cwm-y-ffynnon, high above the Pen-y-Gwryd hotel, and flows into Llynnau Mymbyr going towards Capel Curig. The valley, like the river, lies both in Gwynedd and Conwy County Borough. Today there are at least two active, hill rearing, sheep farms; Garth, featured in the 1967 BBC Wales documentary "Shepherds of Moel Siabod", and Cwm Farm. The area commands excellent views of the Snowdon horseshoe, which (viewed left to right) takes in the peaks of Y Lliwedd, Snowdon (Yr Wyddfa), Crib Goch and Crib y Ddysgl. The valley is the location of the Capel Curig weather station, which on many occasions has recorded the wettest weather in Wales [1].

Llynnau Mymbyr are two lakes located in Dyffryn Mymbyr, a valley running from the village of Capel Curig to the Pen-y-Gwryd hotel in Snowdonia, north-west Wales. The A4086 runs along their northern banks. Strictly speaking this is one lake, originally called Llyn Mymbyr, with a maximum depth of 30 feet. About 3/4 mile long in total, a delta has built up midway along the north shore, and this has to all purposes cut the lake in two - hence the plural name. The river feeding the lakes is the Nantygwryd (or Nant-y-gwryd), which has its source at Llyn Cwm-y-ffynnon, also marked on maps as the Nant Gwryd, which is a tributary of the Afon Llugwy. The two rivers join at Capel Curig. The lake was used for fly-fishing and sub-aqua courses in the 1960s and is still used today as a canoe training resource by Plas y Brenin and other local education authorities.

Tryfan Welsh pronunciation: [ˈtrəvan]) is a mountain in the Ogwen Valley, Snowdonia, Wales. It forms part of the Glyderau group, and is one of the most recognisable peaks in Britain, having a classic pointed shape with rugged crags. At 917.5 metres (3,010 feet) above sea level, it is the fifteenth-highest mountain in Wales. Tryfan was voted Britain's favourite mountain by Trail magazine.Between the mid-1980s and June 2010, its accepted height was 915 metres (3,002 ft). However, it was resurveyed using accurate GPS measurements and found to be 2.4 metres (eight feet) higher (which the pre-1980s surveys also recorded).Tryfan is said to be the final resting-place of Sir Bedivere (Bedwyr) of Arthurian legend.

Llyn Bochlwyd (Welsh pronunciation: [ɬɨ̞n boːχluːɨ̯d, ɬɪn boːχlʊi̯d]) is a lake in Snowdonia, Wales, in Conwy County Borough. It lies in Cwm Bochlwyd, near Llyn Ogwen in the Glyderau mountain range.

Afon Lloer is a small river in Snowdonia in north-west Wales. It is the outflow from Ffynnon Lloer, a lake in the Carneddau mountains, and it flows into Llyn Ogwen.

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.

Dyffryn Ogwen, or Ogwen Valley, is a valley mostly located in the Welsh county of Gwynedd. The upper section of the valley, east of Llyn Ogwen, lies in the county of Conwy.

Llyn Ogwen (; Welsh: [ˈɬɪn ˈɔɡʊɛn]) is a ribbon lake in north-west Wales. It lies alongside the A5 road between two mountain ranges of Snowdonia, the Carneddau and the Glyderau. Somewhat unusually, the county boundary at this point is drawn so that the lake itself lies in the county of Gwynedd, but all the surrounding land (excluding the outflow) lies in Conwy County Borough. Llyn Ogwen lies at a height of about 310 metres above sea level and has an area of 78 acres (320,000 m2), but is a very shallow lake, with a maximum depth of only a little over 3 metres. It is fed by a number of streams from the slopes of the mountains which surround it, which include Tryfan and Pen yr Ole Wen. The largest of these streams is Afon Lloer, which flows from Ffynnon Lloer. It is said that after the Battle of Camlann (King Arthur's final battle), Sir Bedivere (Bedwyr) cast the sword Excalibur into Llyn Ogwen, where it was caught by the Lady of the Lake. Tryfan is said to be Sir Bedivere's final resting-place. According to the writer Jonah Jones:"J. M. Archer Thomson, a headmaster of Llandudno School and a pioneer rock climber in Snowdonia quotes a strange legend from a Welsh magazine concerning Llyn Ogwen. A Shepherd happened upon a cave in Craig Cwrwgl above the lake containing the treasure of King Arthur. In the midst of the commotion caused by this intrusion, he turned to the lake, and 'behold thereon a coracle in which sat three women of more than mortal beauty, but the dread aspect of the rower would have filled the stoutest heart with terror.' E. W. Steeple, who recorded this legend, suggests it 'seems a little obscure, and it may be that it has become involved with another story', probably that of Llyn Llydaw." Llyn Ogwen is the source of the Afon Ogwen which flows north to reach the sea near Bangor. A dam was built in the Afon Ogwen at Ogwen Bank, in the early 20th century, to raise the level of the river in order to provide water for the use in the nearby Penrhyn Quarry. The lake is popular with anglers and is said to contain excellent trout.

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).

The Borough of Arfon was local government district with borough status from 1974 to 1996, being one of five districts in the county of Gwynedd, north-west Wales.

The mediaeval Welsh cantref of Arfon in north-west Wales was the core of the Kingdom of Gwynedd. Later it was included in the new county of Caernarfonshire, together with Llŷn and Arllechwedd under the terms of the Statute of Rhuddlan in 1284. The island of Anglesey faced it across the Menai Strait; to the east was the cantref of Arllechwedd, to the south the cantref of Eifionydd (which, together with Ardudwy, was part of the earlier kingdom of Dunoding), and to the west was the cantref of Llŷn. As the name suggests, Arfon faces Anglesey (Môn) (see soft mutation) across the Menai, and controls access to that strategic strait which has played an important part in Welsh history. Broadly speaking, it stretched from the peaks of Yr Eifl in the west to Afon Cegin, a stream just east of Bangor, and inland from the shores of the Menai southwards into the heart of Snowdonia (Eryri), including Dyffryn Nantlle and the strategic Llanberis Pass. In geographical terms, the cantref was very variable, including fertile land and rich pastures on the shore of the Menai and in the valleys, a number of woods on the slopes and mountains to the south, and the highest mountains in Wales such as Snowdon and Tryfan. Arfon comprised two commotes, which were apparently created later in its history: Arfon Is Gwyrfai and Arfon Uwch Gwyrfai, whose boundary was the Gwyrfai River. During the Iron Age and the Roman era, it was part of the territory of the Ordovices. The Roman fort of Segontium and the Dinorwig hill fort were located there. The main defensive fortress in the era of the Welsh princes was Dolbadarn Castle, near modern Llanberis. Important ecclesiastical centres were to be found in Bangor and Clynnog Fawr. The bishops of Bangor, the successors of St Deiniol, had an extensive holding of land in the north-east of the cantref. This was known as Maenol Bangor, but its status as an administrative unit within Arfon is uncertain. Clynnog owned broad lands in Llŷn and Anglesey. Arfon features prominently in Welsh mythology, particularly in the Fourth Branch of the Mabinogi. Math fab Mathonwy's court at Caer Dathyl was located there, as was Aranrhod's at Caer Aranrhod. The battle between the forces of Math and Pryderi took place in Arfon. Lleu Llaw Gyffes flies to Nantlleu in Arfon in the form of an eagle after his attempted murder by Gronw Pebr.A local government district of the same name existed from 1974 to 1996, when Gwynedd became a unitary authority. The name Arfon itself is still used for the area, as it has been for centuries in Wales.