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Ogof Dydd Byraf
Ogof Dydd Byraf is a cave which extends under Esclusham Mountain in the north-east Wales from its entrance in the south face of the Minera Limeworks quarry. It was originally discovered and explored in 1964 by the Wrexham Caving Club, before it was merged into the North Wales Caving Club. After a short series of mined passages there is a narrow 10 metre pitch into the main levels consisting of a series of well-decorated galleries. Some of the passages come very close to the cave Ogof Llyn Du whose access is blocked by a deep and difficult sump. Over the years this cave had been under threat by the quarry operations, but it is now protected as an SSSI. and owned by North Wales Wildlife Trust The North Wales Wildlife Trust (NWWT) (Welsh: ''Ymddiriedolaeth Natur Gogledd Cymru'') is the Wildlife Trust for North Wales. Established in 1962, it covers the vice counties of Anglesey, Caernarfonshire, Merionethshire, Denbighshire and Flint ... References Bibliography * * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wrexham County Borough
Wrexham County Borough ( cy, Bwrdeistref Sirol Wrecsam) is a county borough, with city status, in the north-east of Wales. It borders England to the east and south-east, Powys to the south-west, Denbighshire to the west and Flintshire to the north-west. The county borough has a population of 136,055. The city of Wrexham is its largest settlement, which together with villages such as Gwersyllt, New Broughton, Bradley and Rhostyllen form a built-up area with 65,692 residents. Villages in the county borough also include Ruabon, Rhosllanerchrugog, Johnstown, Acrefair, Bangor-on-Dee, and Coedpoeth amongst others. The county borough has two outlying towns, Chirk and Holt, and various rural settlements in the county borough's large salient in the Ceiriog Valley, and the English Maelor. The area has strong links with traditional industries such as coal-mining and brewing, although modern manufacturing has since succeeded those former industries. The county borough was formed on 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 Bristol Channel to the south. It had a population in 2021 of 3,107,500 and has a total area of . Wales has over of coastline and is largely mountainous with its higher peaks in the north and central areas, including Snowdon (), its highest summit. The country lies within the Temperateness, north temperate zone and has a changeable, maritime climate. The capital and largest city is Cardiff. Welsh national identity emerged among the Celtic Britons after the Roman withdrawal from Britain in the 5th century, and Wales was formed as a Kingdom of Wales, kingdom under Gruffydd ap Llywelyn in 1055. Wales is regarded as one of the Celtic nations. The Conquest of Wales by Edward I, conquest of Wales by Edward I of England was completed by 1283, th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limestone
Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms when these minerals precipitate out of water containing dissolved calcium. This can take place through both biological and nonbiological processes, though biological processes, such as the accumulation of corals and shells in the sea, have likely been more important for the last 540 million years. Limestone often contains fossils which provide scientists with information on ancient environments and on the evolution of life. About 20% to 25% of sedimentary rock is carbonate rock, and most of this is limestone. The remaining carbonate rock is mostly dolomite, a closely related rock, which contains a high percentage of the mineral dolomite, . ''Magnesian limestone'' is an obsolete and poorly-defined term used variously for dolomite, for limes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Esclusham Mountain
Esclusham Mountain ( Welsh: ''Mynydd Esclus'' or ''Mynydd Esclys'') is an area in Wrexham County Borough, Wales, United Kingdom, and is part of the Ruabon Moors. It rises to a height of 460 m (1509 feet), with the nearby spur of Cyrn-y-Brain, to the west, reaching 473 m (1550 feet).Brown, E. ''The relief and drainage of Wales: a study in geomorphological development'', University of Wales Press, 1960, p.87 It lies mostly within the community of Esclusham. A smaller spur to the north, known as Minera Mountain, is within the neighbouring community of Minera. Geology The underlying rocks are a Carboniferous Limestone along with some Millstone Grit to the east.Sparks, B. ''Geomorphology'', Longman, 1972, p.174 The area was rich in minerals, particularly lead and zinc deposits. The South Minera Vein, a fault fissure rilled with mineral matter, ran through the area of Esclusham Mountain and, until the second decade of the 20th century, there were many lead mines in the area, some o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minera Limeworks
The Minera Limeworks were extensive lime quarries and kilns at Minera in Wrexham, Wales. It was located at , near the villages of Gwynfryn, Minera, and Coedpoeth and was locally referred to as ''The Calch''. History The Minera Limeworks were once the largest lime workings in the north of Wales. Limeburning at Minera is recorded from as early as 1620 but the Minera Lime Company was established in 1852. The total output from the Minera area quarries was estimated, in 1859, to be around 300,000 tons, with 200,000 tons of this converted to lime. The Minera Lime Company became a limited company in 1865, and this prompted some heavy cash injection into the works. Using this money, the company erected a "Hoffmann kiln". Originally destined for brickmaking, it was soon converted to limeburning. This kiln still exists and is one of three that were purpose-built for lime burning left in the UK: another is located at Langcliffe in Yorkshire, another is located at Llanymynech Limew ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Wales Caving Club
North is one of the four compass points or cardinal directions. It is the opposite of south and is perpendicular to east and west. ''North'' is a noun, adjective, or adverb indicating direction or geography. Etymology The word ''north'' is related to the Old High German ''nord'', both descending from the Proto-Indo-European unit *''ner-'', meaning "left; below" as north is to left when facing the rising sun. Similarly, the other cardinal directions are also related to the sun's position. The Latin word ''borealis'' comes from the Greek '' boreas'' "north wind, north", which, according to Ovid, was personified as the wind-god Boreas, the father of Calais and Zetes. ''Septentrionalis'' is from ''septentriones'', "the seven plow oxen", a name of ''Ursa Major''. The Greek ἀρκτικός (''arktikós'') is named for the same constellation, and is the source of the English word ''Arctic''. Other languages have other derivations. For example, in Lezgian, ''kefer'' can mean b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Descent (magazine)
''Descent'' magazine is a bi-monthly British and Irish full-colour print magazine dedicated to caving. It has been in print since 1969, first as a small format magazine and then, from 1977 onwards, in A4 format. The publication is 'written by cavers, for cavers' and features high quality photographs and articles related to underground exploration. As well as the major features, ''Descent'' maintains a network of correspondents in each of the caving regions of the UK and Ireland. The correspondents gather reports on the latest caving discoveries and other caving news for their area. Bruce Bedford was editor from 1969 until 1988. Chris Howes then began to work as editor and bought it from its previous publisher, Gloster Publications, in 1998, bringing it to his and Judith Calford's company, Wild Places Publishing. In 2022, after 34 years and 204 issues as editor, Chris and Judith stepped down with their final issue being for October 2022. As of October 2022, the editor is Chris S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SSSI
A Site of Special Scientific Interest (SSSI) in Great Britain or an Area of Special Scientific Interest (ASSI) in the Isle of Man and Northern Ireland is a conservation designation denoting a protected area in the United Kingdom and Isle of Man. SSSI/ASSIs are the basic building block of site-based nature conservation legislation and most other legal nature/geological conservation designations in the United Kingdom are based upon them, including national nature reserves, Ramsar sites, Special Protection Areas, and Special Areas of Conservation. The acronym "SSSI" is often pronounced "triple-S I". Selection and conservation Sites notified for their biological interest are known as Biological SSSIs (or ASSIs), and those notified for geological or physiographic interest are Geological SSSIs (or ASSIs). Sites may be divided into management units, with some areas including units that are noted for both biological and geological interest. Biological Biological SSSI/ASSIs may b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Wales Wildlife Trust
The North Wales Wildlife Trust (NWWT) (Welsh: ''Ymddiriedolaeth Natur Gogledd Cymru'') is the Wildlife Trust for North Wales. Established in 1962, it covers the vice counties of Anglesey, Caernarfonshire, Merionethshire, Denbighshire and Flintshire with over 4,500 members. It is a registered charity and a member of the Wildlife Trusts Partnership with the head office being located in Bangor and its eastern office located at Aberduna nature reserve, Flintshire. Aims of the North Wales Wildlife Trust are: *To conserve north Wales' wildlife for the future. *To increase the understanding of north Wales' wildlife and its natural environment. *To apply this knowledge of practical wildlife conservation in our nature reserves and elsewhere throughout north Wales. *To enhance the enjoyment of and access to north Wales' wildlife by members of the public. History The history can be traced back to 1953 when two botanists RH Roberts, a local headmaster and WS "Bill" Lacey, a lecturer i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caves Of Wales
A cave or cavern is a natural void in the ground, specifically a space large enough for a human to enter. Caves often form by the weathering of rock and often extend deep underground. The word ''cave'' can refer to smaller openings such as sea caves, rock shelters, and grottos, that extend a relatively short distance into the rock and they are called ''exogene'' caves. Caves which extend further underground than the opening is wide are called ''endogene'' caves. Speleology is the science of exploration and study of all aspects of caves and the cave environment. Visiting or exploring caves for recreation may be called ''caving'', ''potholing'', or ''spelunking''. Formation types The formation and development of caves is known as ''speleogenesis''; it can occur over the course of millions of years. Caves can range widely in size, and are formed by various geological processes. These may involve a combination of chemical processes, erosion by water, tectonic forces, microorganism ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
