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Cefn Yr Ystrad
Cefn yr Ystrad is a mountain in the Brecon Beacons National Park in Wales. It is an outlier of the Central Beacons group. The broad northeast - southwest aligned ridge reaches an elevation of . One of the southernmost peaks in the Brecon Beacons, it rises to the east of Pontsticill Reservoir. The summit area is a great stretch of wild moorland, with the highest point marked by a trig point. Geology The hill is formed from successive layers of Carboniferous Limestone and the overlying Twrch Sandstone (formerly known as the ''Basal Grit'' of the Millstone Grit). The rock strata generally dip to the south but are locally disrupted by Foundered strata, foundering of the sandstone as the underlying limestone has karst#Interstratal karst, dissolved away. There are extensive ice-smoothed pavements of the latter and loose rock abounds. The crest and southern slopes of the hill are home to dozens of shakeholes, some of which reach considerable proportions. Archaeology The hill is scatte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pen Y Fan
Pen y Fan () is the highest peak in South Wales, situated in Brecon Beacons National Park (Bannau Brycheiniog). At above sea-level, it is also the highest British peak south of Cadair Idris in Snowdonia. It is the highest point (List of counties of England and Wales in 1964 by highest point, county top) of the historic county of Brecknockshire (though in modern administrative terms, it now lies within the unitary council area of Powys). The twin summits of Pen y Fan and Corn Du at were formerly referred to as Cadair Arthur or 'Arthur's Seat'. The mountain and surrounding area are owned by the National Trust for Places of Historic Interest or Natural Beauty, National Trust whose work parties attempt to combat the erosion caused by the popularity of this peak with walkers. The mountain is used by the Ministry of Defence (United Kingdom), military as part of the United Kingdom Special Forces Selection, selection process of the United Kingdom, UK's United Kingdom Special Forces, S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rock Strata
In geology and related fields, a stratum (: strata) is a layer of rock or sediment characterized by certain lithologic properties or attributes that distinguish it from adjacent layers from which it is separated by visible surfaces known as either '' bedding surfaces'' or ''bedding planes''.Salvador, A. ed., 1994. ''International stratigraphic guide: a guide to stratigraphic classification, terminology, and procedure. 2nd ed.'' Boulder, Colorado, The Geological Society of America, Inc., 215 pp. . Prior to the publication of the International Stratigraphic Guide, older publications have defined a stratum as being either equivalent to a single bed or composed of a number of beds; as a layer greater than 1 cm in thickness and constituting a part of a bed; or a general term that includes both ''bed'' and ''lamina''.Neuendorf, K.K.E., Mehl, Jr., J.P., and Jackson, J.A. , eds., 2005. ''Glossary of Geology'' 5th ed. Alexandria, Virginia, American Geological Institute. 779 pp. . ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pontsticill
Pontsticill is a village within the County Borough of Merthyr Tydfil in South Wales. It lies within the valley of the Taf Fechan on the southern edge of the Brecon Beacons National Park. The village lies within the community of Vaynor in an area that was, until the local government re-organisation of 1974, within the historic county of Brecknockshire. Pontsticill is closely associated with the Brecon Mountain Railway, a tourist railway which runs along the former Brecon and Merthyr Railway line. Immediately to the north of the village is the Pontsticill Reservoir which was completed in 1927. The village name originates from the Welsh words ''pont'' and ''sticill'' and signifies a 'bridge near a stile'. Pontsticill Reservoir Pontsticill Reservoir, originally Taff Fechan Reservoir, was opened in 1927 to supply water to much of the South Wales Valleys. The 110 ft high embankment holds 15,400 megalitres of water. The reservoir is popular with sailors, anglers and picni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Open Country
"Open Country" is a designation used for some access land in England and Wales. It was first defined under the National Parks and Access to the Countryside Act 1949 (and extended by the Countryside Act 1968), and was land over which an appropriate access agreement had been made. In particular significant upland areas of the northern Peak District received the designation, where there had been much dispute over access prior to World War II, including the 1932 mass trespass of Kinder Scout. The term is also used in the Countryside and Rights of Way Act 2000 to describe 'areas of mountain, moor, heath and down' that are generally available for access under that Act. (It appears that the rights conferred by this new definition are in general less comprehensive than those conferred under the 1949 Act, but will apply to a wider area.) The Countryside Agency's publication ''Managing Public Access'' appears to envisage that most land originally designated under the 1949 Act will in du ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bwlch
is a village and an electoral ward in the community of Cwmdu and District, Powys, south Wales. The settlement is strung out along the A40 road which crosses a low col above the Usk Valley at this point on its route between Brecon and Crickhowell. Geography The village is about north of the River Usk and about 100 metres above the floor of the Usk Valley at around above sea level. The geographical feature from which it derives its name separates the rolling moorland of Cefn Moel and Mynydd Llangorse in the northeast from Buckland Hill to the southwest. Various parts of the village command panoramic views across the Rhiangoll valley to the south-western flanks of the Black Mountains, west to the Brecon Beacons and south to Mynydd Llangynidr and Mynydd Llangatwg. About to the northwest is the hill of Allt yr Esgair (commonly referred to locally as 'The Allt') whilst to the southwest is Tor y Foel. Llangorse Lake and the village of Llangors are to the north, Talybont-on-U ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
James Gwynne-Holford
James Price William Gwynne-Holford (25 November 1833 – 6 February 1916) was a British Conservative politician. Gwynne-Holford was elected MP for Brecon at a by-election in 1870, and held the seat until 1880. Personal life Gwynne-Holford was born in Llansantffraed, Brecon, son of Colonel James Price Gwynne-Holford, Buckland Hall and his wife, Anna Maria Eleanor, daughter of Roderick Gwynne, Glebran. The father died in 1846. He married Eleanor Gordon-Canning in 1891 at St James's Church, Hanover Square, London. They had one daughter. He was educated at Eton College and Christ Church, Oxford Christ Church (, the temple or house, ''wikt:aedes, ædes'', of Christ, and thus sometimes known as "The House") is a Colleges of the University of Oxford, constituent college of the University of Oxford in England. Founded in 1546 by Henry V .... After a short military career he retired to his country estates at Cilgwyn and Buckland, and took an active part in the public life of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Duke Of Beaufort
Duke of Beaufort ( ) is a title in the Peerage of England. It was created by Charles II in 1682 for Henry Somerset, 3rd Marquess of Worcester, a descendant of Charles Somerset, 1st Earl of Worcester, legitimised son of Henry Beaufort, 3rd Duke of Somerset, a Lancastrian leader in the Wars of the Roses. The name ''Beaufort'' refers to a castle in Champagne, France (now Montmorency-Beaufort). It is the only current dukedom to take its name from a place outside the British Isles. The Dukes of Beaufort descend in the male line from the House of Plantagenet through John of Gaunt, son of Edward III. This statement was challenged after the analysis of the Y chromosomal DNA of the remains of Richard III. Most living male heirs of the 5th Duke of Beaufort were found to carry a relatively common Y chromosome type, which is different from the rare lineage found in Richard III's remains. The instance of false paternity could have occurred anywhere in the numerous generations sep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boundary Stone
A boundary marker, border marker, boundary stone, or border stone is a robust physical marker that identifies the start of a land boundary or the change in a boundary, especially a change in direction of a boundary. There are several other types of named border markers, known as boundary trees, pillars, monuments, obelisks, and corners. Border markers can also be markers through which a border line runs in a straight line to determine that border. They can also be the markers from which a border marker has been fixed. Purpose According to Josiah Ober, boundary markers are "a way of imposing human, cultural, social meanings upon a once-undifferentiated natural environment." Boundary markers are linked to social hierarchies, since they derive their meaning from the authority of a person or group to declare the limits of a given space of land for political, social or religious reasons. Ober notes that "determining who can use parcels of arable land and for what purpose, has imm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bronze Age
The Bronze Age () was a historical period characterised principally by the use of bronze tools and the development of complex urban societies, as well as the adoption of writing in some areas. The Bronze Age is the middle principal period of the three-age system, following the Stone Age and preceding the Iron Age. Conceived as a global era, the Bronze Age follows the Neolithic, with a transition period between the two known as the Chalcolithic. The final decades of the Bronze Age in the Mediterranean basin are often characterised as a period of widespread societal collapse known as the Late Bronze Age collapse (), although its severity and scope are debated among scholars. An ancient civilisation is deemed to be part of the Bronze Age if it either produced bronze by smelting its own copper and alloying it with tin, arsenic, or other metals, or traded other items for bronze from producing areas elsewhere. Bronze Age cultures were the first to History of writing, develop writin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Archaeological Site
An archaeological site is a place (or group of physical sites) in which evidence of past activity is preserved (either prehistoric or recorded history, historic or contemporary), and which has been, or may be, investigated using the discipline of archaeology and represents a part of the archaeological record. Sites may range from those with few or no remains visible above ground, to buildings and other structures still in use. Beyond this, the definition and geographical extent of a "site" can vary widely, depending on the period studied and the theoretical approach of the archaeologist. Geographical extent It is almost invariably difficult to delimit a site. It is sometimes taken to indicate a settlement of some sort, although the archaeologist must also define the limits of human activity around the settlement. Any episode of deposition, such as a hoard or burial, can form a site as well. Development-led archaeology undertaken as cultural resources management has the disad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shakehole
A sinkhole is a depression or hole in the ground caused by some form of collapse of the surface layer. The term is sometimes used to refer to doline, enclosed depressions that are also known as shakeholes, and to openings where surface water enters into underground passages known as ''ponor'', swallow hole or swallet. A ''cenote'' is a type of sinkhole that exposes groundwater underneath. ''Sink'', and ''stream sink'' are more general terms for sites that drain surface water, possibly by infiltration into sediment or crumbled rock. Most sinkholes are caused by karst processes – the chemical dissolution of carbonate rocks, collapse or suffosion processes. Sinkholes are usually circular and vary in size from tens to hundreds of meters both in diameter and depth, and vary in form from soil-lined bowls to bedrock-edged chasms. Sinkholes may form gradually or suddenly, and are found worldwide. Formation Natural processes Sinkholes may capture surface drainage from runni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Karst
Karst () is a topography formed from the dissolution of soluble carbonate rocks such as limestone and Dolomite (rock), dolomite. It is characterized by features like poljes above and drainage systems with sinkholes and caves underground. There is some evidence that karst may occur in more weathering-resistant rocks such as quartzite given the right conditions. Subterranean drainage may limit surface water, with few to no rivers or lakes. In regions where the dissolved bedrock is covered (perhaps by debris) or confined by one or more superimposed non-soluble rock strata, distinctive karst features may occur only at subsurface levels and can be totally missing above ground. The study of ''paleokarst'' (buried karst in the stratigraphic column) is important in petroleum geology because as much as 50% of the world's Oil and gas reserves and resource quantification, hydrocarbon reserves are hosted in carbonate rock, and much of this is found in porous karst systems. Etymology ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
