Llyn y Fan Fawr (

Welsh Welsh may refer to: Related to Wales * Welsh, referring or related to Wales * Welsh language, a Brittonic Celtic language spoken in Wales * Welsh people People * Welsh (surname) * Sometimes used as a synonym for the ancient Britons (Celtic peop ...

: 'great lake (near) the peak') is a natural

lake A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much large ...

in the county of

Powys Powys (; ) is a Local government in Wales#Principal areas, county and Preserved counties of Wales, preserved county in Wales. It is named after the Kingdom of Powys which was a Welsh succession of states, successor state, petty kingdom and princi ...

, Wales. It lies at the foot of

Fan Brycheiniog Fan Brycheiniog is the highest peak at a height of (above sea level) in the Black Mountain (''Y Mynydd Du'') region of the Brecon Beacons National Park in southern Wales. There is a trig point at the peak and on the edge of the escarpm ...

, the highest peak of the Black Mountain (

''Y Mynydd Du'') range within the

Brecon Beacons National Park The Brecon Beacons National Park ( cy, Parc Cenedlaethol Bannau Brycheiniog) is one of three national parks in Wales, and is centred on the Brecon Beacons range of hills in southern Wales. It includes the Black Mountain (range), Black Mountain ...

. Created as a result of glacial action, it is one of the largest glacial lakes in southern

Wales Wales ( cy, Cymru ) is a Countries of the United Kingdom, country that is part of the United Kingdom. It is bordered by England to the Wales–England border, east, the Irish Sea to the north and west, the Celtic Sea to the south west and the ...

. The lake is roughly rectangular in shape with its long axis oriented roughly north-south. Llyn y Fan Fawr from a small beach

The surface of Llyn y Fan Fawr lies at about 1815 feet or 605m above sea level. Its primary outflow is to the

River Tawe The River Tawe (; cy, Afon Tawe ) is a long river in South Wales. Its headwaters flow initially east from its source below Llyn y Fan Fawr south of Moel Feity in the Black Mountains, the westernmost range of the Brecon Beacons National Pa ...

. Much of the land around the lake is

peat Peat (), also known as turf (), is an accumulation of partially decayed vegetation or organic matter. It is unique to natural areas called peatlands, bogs, mires, moors, or muskegs. The peatland ecosystem covers and is the most efficien ...

y and thus wet underfoot.

References

External links

Images of lake and area on Geograph website
{{authority control Black Mountain (hill)

Fan Fawr Fan Fawr ( Welsh 'great peak') is a mountain in the Fforest Fawr section of the Brecon Beacons National Park, in Powys, Wales and over 734 m (2,408 ft) high. The summit overlooks the steep eastern face and is marked by a cairn. Un ...