Corn Du, Wales, UK
Corn Du is a mountain immediately to the southwest of Pen y Fan and the second highest peak in South Wales, situated in the Brecon Beacons National Park. Tommy Jones' Obelisk is found on its western flanks, in between the summit and Y Gyrn.
The summit is very similar to that of Pen y Fan: flat and anvil shaped. It is marked by a large cairn. The summit is often crossed on the way to Pen y Fan. It offers good views down into Cwm Llwch and across the Usk valley to Brecon.
Nearby is one of the few sizeable natural lakes in the park, Llyn Cwm Llwch.
The Brecon Beacons (Welsh: Bannau Brycheiniog) is a mountain range in South Wales. In a narrow sense, the name refers to the range of Old Red Sandstone peaks popular with walkers which lie to the south of Brecon. Sometimes referred to as "the central Beacons" they include South Wales' highest mountain, Pen y Fan. The range forms the central section of the Brecon Beacons National Park (Parc Cenedlaethol Bannau Brycheiniog), a designation which also encompasses ranges both to the east and the west of "the central Beacons". This much wider area is also commonly referred to as "the Brecon Beacons".
The Brecon Beacons range, in its narrower sense comprises six main peaks: from west to east these are: Corn Du (873 m or 2864 feet), Pen y Fan, the highest peak (886 m or 2907 feet), Cribyn (795 m or 2608 feet), Fan y Big (719 m or 2359 feet), Bwlch y Ddwyallt (754 m or 2474 ft) and Waun Rydd (769 m or 2523 ft). These summits form a long ridge, and the sections joining the first four form a horseshoe shape around the head of the Taf Fechan river, which flows away to the southeast. To the northeast of the ridge, interspersed with long parallel spurs, are four round-headed valleys or cwms; from west to east these are Cwm Sere, Cwm Cynwyn, Cwn Oergwm and Cwm Cwareli.
The Brecon Beacons are said to be named after the ancient practice of lighting signal fires (beacons) on mountains to warn of attacks by invaders, or more recently to commemorate public and national events such as coronations or the turn of the millennium.
The Brecon Beacons National Park was established in 1957, the third of the three Welsh parks after Snowdonia in 1951 and the Pembrokeshire Coast in 1952. It stretches from Llandeilo in the west to Hay-on-Wye in the northeast and Pontypool in the southeast, covering 519 square miles (1344 km², 332 100 acres) and encompassing four main regions - the Black Mountain in the west, Fforest Fawr (Great Forest) and the Brecon Beacons in the centre, and the confusingly named Black Mountains in the east. The western half gained European and Global status in 2005 as Fforest Fawr Geopark. This includes the Black Mountain, the historic extent of Fforest Fawr, and much of the Brecon Beacons and surrounding lowlands.
The rectangular boulders here are Old Red Sandstone which is an assemblage of rocks in the North Atlantic region largely of is a part of the Devonian period, between 17 and 354 million years ago. It extends in the east across Britain, Ireland and Norway and in the west along the northeastern seaboard of North America. At that time Wales was an arid place and these desert sediments eventually formed conglomerates and sandstones. They are exposed today Hear in the Breacon Beacons. These deposits are about 90 metres thick. Ripple marks and mud cracks reflect the origin of the sandstones which lie above the conglomerate.
The Anglo-Welsh Basin is a relatively large basin extending across much of South Wales from southern Pembrokeshire in the west through Carmarthenshire into Powys and Monmouthshire and through the southern Welsh Marches, notably into Herefordshire, Worcestershire and Gloucestershire. Outliers in Somerset and north Devon complete the extent of this basin.
en.wikipedia.org/wiki/Brecon_Beacons
www.geographyinaction.co.uk/Geology files/ORS.html
Corn Du, Wales, UK
Corn Du is a mountain immediately to the southwest of Pen y Fan and the second highest peak in South Wales, situated in the Brecon Beacons National Park. Tommy Jones' Obelisk is found on its western flanks, in between the summit and Y Gyrn.
The summit is very similar to that of Pen y Fan: flat and anvil shaped. It is marked by a large cairn. The summit is often crossed on the way to Pen y Fan. It offers good views down into Cwm Llwch and across the Usk valley to Brecon.
Nearby is one of the few sizeable natural lakes in the park, Llyn Cwm Llwch.
The Brecon Beacons (Welsh: Bannau Brycheiniog) is a mountain range in South Wales. In a narrow sense, the name refers to the range of Old Red Sandstone peaks popular with walkers which lie to the south of Brecon. Sometimes referred to as "the central Beacons" they include South Wales' highest mountain, Pen y Fan. The range forms the central section of the Brecon Beacons National Park (Parc Cenedlaethol Bannau Brycheiniog), a designation which also encompasses ranges both to the east and the west of "the central Beacons". This much wider area is also commonly referred to as "the Brecon Beacons".
The Brecon Beacons range, in its narrower sense comprises six main peaks: from west to east these are: Corn Du (873 m or 2864 feet), Pen y Fan, the highest peak (886 m or 2907 feet), Cribyn (795 m or 2608 feet), Fan y Big (719 m or 2359 feet), Bwlch y Ddwyallt (754 m or 2474 ft) and Waun Rydd (769 m or 2523 ft). These summits form a long ridge, and the sections joining the first four form a horseshoe shape around the head of the Taf Fechan river, which flows away to the southeast. To the northeast of the ridge, interspersed with long parallel spurs, are four round-headed valleys or cwms; from west to east these are Cwm Sere, Cwm Cynwyn, Cwn Oergwm and Cwm Cwareli.
The Brecon Beacons are said to be named after the ancient practice of lighting signal fires (beacons) on mountains to warn of attacks by invaders, or more recently to commemorate public and national events such as coronations or the turn of the millennium.
The Brecon Beacons National Park was established in 1957, the third of the three Welsh parks after Snowdonia in 1951 and the Pembrokeshire Coast in 1952. It stretches from Llandeilo in the west to Hay-on-Wye in the northeast and Pontypool in the southeast, covering 519 square miles (1344 km², 332 100 acres) and encompassing four main regions - the Black Mountain in the west, Fforest Fawr (Great Forest) and the Brecon Beacons in the centre, and the confusingly named Black Mountains in the east. The western half gained European and Global status in 2005 as Fforest Fawr Geopark. This includes the Black Mountain, the historic extent of Fforest Fawr, and much of the Brecon Beacons and surrounding lowlands.
The rectangular boulders here are Old Red Sandstone which is an assemblage of rocks in the North Atlantic region largely of is a part of the Devonian period, between 17 and 354 million years ago. It extends in the east across Britain, Ireland and Norway and in the west along the northeastern seaboard of North America. At that time Wales was an arid place and these desert sediments eventually formed conglomerates and sandstones. They are exposed today Hear in the Breacon Beacons. These deposits are about 90 metres thick. Ripple marks and mud cracks reflect the origin of the sandstones which lie above the conglomerate.
The Anglo-Welsh Basin is a relatively large basin extending across much of South Wales from southern Pembrokeshire in the west through Carmarthenshire into Powys and Monmouthshire and through the southern Welsh Marches, notably into Herefordshire, Worcestershire and Gloucestershire. Outliers in Somerset and north Devon complete the extent of this basin.
en.wikipedia.org/wiki/Brecon_Beacons
www.geographyinaction.co.uk/Geology files/ORS.html