1.
Summit
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A summit is a point on a surface that is higher in elevation than all points immediately adjacent to it. Mathematically, a summit is a maximum in elevation. The topographic terms acme, apex, peak, and zenith are synonymous, the UIAA definition is that a summit is independent if it has a prominence of 30 metres or more, it is a mountain if it has a prominence of at least 300 metres. This can be summarised as follows, A pyramidal peak is an exaggerated form produced by ice erosion of a mountain top, Summit may also refer to the highest point along a line, trail, or route. In many parts of the western United States, the term refers to the highest point along a road, highway. For example, the highest point along Interstate 80 in California is referred to as Donner Summit while the highest point on Interstate 5 is Siskiyou Mountain Summit, geoid Hill List of highest mountains Maxima and minima Nadir Summit accordance Peak finder
2.
Lists of mountains and hills in the British Isles
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The mountains and hills of Great Britain, and to a lesser extent Ireland, are the subject of a considerable number of lists that categorise them by height, topographic prominence, or other criteria. They are commonly used as a basis for peak bagging, whereby hillwalkers attempt to reach all the summits on a given list. The oldest and best known of these lists is that of the Munros, mountains in Scotland over 3,000 feet, other well-known lists include the Corbetts, Wainwrights and Marilyns. There is no consensus on the definition of mountain, but in Great Britain. The UK government defines mountain as land over 600 metres for the purposes of freedom of access, in addition, some definitions also include a topographical prominence requirement, typically 100 or 500 feet. In practice, mountains in Scotland are frequently referred to as no matter what their height, as reflected in names such as the Cuillin Hills. In Wales, the distinction is more a term of land use, the Munros are mountains in Scotland over 3,000 ft. The list was compiled by Sir Hugh Munro in 1891. There are 282 Munros and 227 further tops, all of them in the Scottish Highlands, list of Munros The Murdos are an attempt to apply objective criteria to the Munros and their associated tops. They comprise all the summits in Scotland over 3,000 feet with a prominence of at least 30 metres, there are currently 442 Murdos, compared to 282 Munros or 509 Munros plus tops. The list was compiled by Alan Dawson, all Murdos are also Munro Tops, but many Munro Tops fail to qualify as Murdos because of insufficient relative height. Before 1997 there were seven Murdos that were not Munro Tops, all seven were included in the 1997 edition of Munros Tables, plus two non-Murdos, Little Pap on Lochnagar and Knights Peak on Sgurr nan Gillean or a UK top-tier administrative area. There are now 347 Hardys with the recent addition of 5 low lying English coastal estuary islands,61 hill ranges,96 islands and 190 administrative areas,183 are in England,31 in Wales,107 in Scotland and 26 in Northern Ireland. The list was first compiled in the 1990s by Ian Hardy, the Marilyns were supplemented in 2007 by the HuMPs which reduces the Prominence requirement to 100m. The list was compiled by Mark Jackson from a number of sources. There are almost 3,000 British HuMPs, including three in the Channel Islands, More recently, Mark Jackson compiled the TuMPs, a list of all hills in Britain having a prominence of 30 metres. By definition, all Murdos, Corbett Tops, Graham Tops, Hewitts, there are over 16,000 TuMPs, approximately half of that number that did not appear in previously researched lists were researched by Mark Jackson between 2006 and 2009. Since 2012 the list has been published and maintained by the editors of The Database of British and Irish Hills, a list of mountains, over 2, 000-foot-high, in England and Wales was published by Buxton & Lewis in 1986
3.
County Limerick
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County Limerick is a county in Ireland. It is located in the province of Munster, and is part of the Mid-West Region. It is named after the city of Limerick, Limerick City and County Council is the local council for the county. The countys population at the 2016 census is 195,175 of which 58,319 live in Limerick City, Limerick borders four other counties, Kerry to the west, Clare to the north, Tipperary to the east and Cork to the south. It is the fifth largest of Munsters six counties in size, the River Shannon flows through the city of Limerick into the Atlantic Ocean at the north of the county. Below the city, the waterway is known as the Shannon Estuary, because the estuary is shallow, the countys most important port is several kilometres west of the city, at Foynes. Limerick City is the county town and is also Irelands third largest city and it also serves as a regional centre for the greater Mid-West Region. Newcastle West, Killmallock & Abbeyfeale are other important towns in the county, there are fourteen historic baronies in the county. While baronies continue to be officially defined units, they are no longer used for administrative purposes. Their official status is illustrated by Placenames Orders made since 2003, the highest point in the county is located in its south-east corner at Galtymore, which separates Limerick from County Tipperary. The county is not a simply a plain, its topography consists of hills, the eastern part of the county is part of the Golden Vale, which is well known for dairy produce and consists of rolling low hills. This gives way to flat land around the centre of the county. Towards the west, the Mullaghareirk Mountains push across the county offering extensive views east over the county, tributaries of the Shannon drainage basin located in the county include the rivers Mulkear, Loobagh, Maigue, Camogue, Morning Star, Deel, and the Feale. It is thought that humans had established themselves in the Lough Gur area of the county as early as 3000 BC, the arrival of the Celts around 400 BC brought about the division of the county into petty kingdoms or túatha. The OBriens retained their power until late in the 1100s. The ancestors of both Michael Collins and the famous OConnells of Derrynane were also among the septs of the Uí Fidgenti. As the Ui Fidgenti were the clan in the Limerick after 400 a. d. the Uí Fidgenti still made a substantial contribution to the population of the central. Their capital was Dún Eochair, the earthworks of which still remain and can be found close to the modern town of Bruree
4.
Republic of Ireland
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Ireland, also known as the Republic of Ireland, is a sovereign state in north-western Europe occupying about five-sixths of the island of Ireland. The capital and largest city is Dublin, which is located on the part of the island. The state shares its land border with Northern Ireland, a part of the United Kingdom. It is otherwise surrounded by the Atlantic Ocean, with the Celtic Sea to the south, Saint Georges Channel to the south-east, and it is a unitary, parliamentary republic. The head of government is the Taoiseach, who is elected by the Dáil and appointed by the President, the state was created as the Irish Free State in 1922 as a result of the Anglo-Irish Treaty. It was officially declared a republic in 1949, following the Republic of Ireland Act 1948, Ireland became a member of the United Nations in December 1955. It joined the European Economic Community, the predecessor of the European Union, after joining the EEC, Ireland enacted a series of liberal economic policies that resulted in rapid economic growth. The country achieved considerable prosperity between the years of 1995 and 2007, which known as the Celtic Tiger period. This was halted by a financial crisis that began in 2008. However, as the Irish economy was the fastest growing in the EU in 2015, Ireland is again quickly ascending league tables comparing wealth and prosperity internationally. For example, in 2015, Ireland was ranked as the joint sixth most developed country in the world by the United Nations Human Development Index and it also performs well in several national performance metrics, including freedom of the press, economic freedom and civil liberties. Ireland is a member of the European Union and is a member of the Council of Europe. The 1922 state, comprising 26 of the 32 counties of Ireland, was styled, the Constitution of Ireland, adopted in 1937, provides that the name of the State is Éire, or, in the English language, Ireland. Section 2 of the Republic of Ireland Act 1948 states, It is hereby declared that the description of the State shall be the Republic of Ireland. The 1948 Act does not name the state as Republic of Ireland, because to have done so would have put it in conflict with the Constitution. The government of the United Kingdom used the name Eire, and, from 1949, Republic of Ireland, for the state, as well as Ireland, Éire or the Republic of Ireland, the state is also referred to as the Republic, Southern Ireland or the South. In an Irish republican context it is referred to as the Free State or the 26 Counties. From the Act of Union on 1 January 1801, until 6 December 1922, during the Great Famine, from 1845 to 1849, the islands population of over 8 million fell by 30%
5.
Mountain range
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A mountain range is a geographic area containing numerous geologically related mountains. A mountain system or system of ranges, sometimes is used to combine several geological features that are geographically related. Mountain ranges are usually segmented by highlands or mountain passes and valleys, individual mountains within the same mountain range do not necessarily have the same geologic structure or petrology. They may be a mix of different orogenic expressions and terranes, for example thrust sheets, uplifted blocks, fold mountains, most geologically young mountain ranges on the Earths land surface are associated with either the Pacific Ring of Fire or the Alpide Belt. The Andes is 7,000 kilometres long and is considered the worlds longest mountain system. The Alpide belt includes Indonesia and southeast Asia, through the Himalaya, the belt also includes other European and Asian mountain ranges. The Himalayas contain the highest mountains in the world, including Mount Everest, mountain ranges outside of these two systems include the Arctic Cordillera, the Urals, the Appalachians, the Scandinavian Mountains, the Altai Mountains and the Hijaz Mountains. If the definition of a range is stretched to include underwater mountains. The mountain systems of the earth are characterized by a tree structure, the sub-range relationship is often expressed as a parent-child relationship. For example, the White Mountains of New Hampshire and the Blue Ridge Mountains are sub-ranges of the Appalachian Mountains, equivalently, the Appalachians are the parent of the White Mountains and Blue Ridge Mountains, and the White Mountains and the Blue Ridge Mountains are children of the Appalachians. The position of mountains influences climate, such as rain or snow, when air masses move up and over mountains, the air cools producing orographic precipitation. As the air descends on the side, it warms again and is drier. Often, a shadow will affect the leeward side of a range. Mountain ranges are constantly subjected to forces which work to tear them down. Erosion is at work while the mountains are being uplifted and long after until the mountains are reduced to low hills, rivers are traditionally believed to be the principle erosive factor on mountain ranges, with their ability of bedrock incision and sediment transport. The rugged topography of a range is the product of erosion. The basins adjacent to a mountain range are filled with sediments which are buried and turned into sedimentary rock. The early Cenozoic uplift of the Rocky Mountains of Colorado provides an example and this mass of rock was removed as the range was actively undergoing uplift
6.
Mountain
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A mountain is a large landform that stretches above the surrounding land in a limited area, usually in the form of a peak. A mountain is steeper than a hill. Mountains are formed through tectonic forces or volcanism and these forces can locally raise the surface of the earth. Mountains erode slowly through the action of rivers, weather conditions, a few mountains are isolated summits, but most occur in huge mountain ranges. High elevations on mountains produce colder climates than at sea level and these colder climates strongly affect the ecosystems of mountains, different elevations have different plants and animals. Because of the less hospitable terrain and climate, mountains tend to be used less for agriculture and more for resource extraction and recreation, the highest mountain on Earth is Mount Everest in the Himalayas of Asia, whose summit is 8,850 m above mean sea level. The highest known mountain on any planet in the Solar System is Olympus Mons on Mars at 21,171 m, there is no universally accepted definition of a mountain. Elevation, volume, relief, steepness, spacing and continuity have been used as criteria for defining a mountain, whether a landform is called a mountain may depend on local usage. The highest point in San Francisco, California, is called Mount Davidson, notwithstanding its height of 300 m, similarly, Mount Scott outside Lawton, Oklahoma is only 251 m from its base to its highest point. Whittows Dictionary of Physical Geography states Some authorities regard eminences above 600 metres as mountains, in addition, some definitions also include a topographical prominence requirement, typically 100 or 500 feet. For a while, the US defined a mountain as being 1,000 feet or taller, any similar landform lower than this height was considered a hill. However, today, the United States Geological Survey concludes that these terms do not have technical definitions in the US, using these definitions, mountains cover 33% of Eurasia, 19% of South America, 24% of North America, and 14% of Africa. As a whole, 24% of the Earths land mass is mountainous, there are three main types of mountains, volcanic, fold, and block. All three types are formed from plate tectonics, when portions of the Earths crust move, crumple, compressional forces, isostatic uplift and intrusion of igneous matter forces surface rock upward, creating a landform higher than the surrounding features. The height of the feature makes it either a hill or, if higher and steeper, major mountains tend to occur in long linear arcs, indicating tectonic plate boundaries and activity. Volcanoes are formed when a plate is pushed below another plate, at a depth of around 100 km, melting occurs in rock above the slab, and forms magma that reaches the surface. When the magma reaches the surface, it builds a volcanic mountain. Examples of volcanoes include Mount Fuji in Japan and Mount Pinatubo in the Philippines, the magma does not have to reach the surface in order to create a mountain, magma that solidifies below ground can still form dome mountains, such as Navajo Mountain in the US
7.
Ireland
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Ireland is an island in the North Atlantic. It is separated from Great Britain to its east by the North Channel, the Irish Sea, Ireland is the second-largest island of the British Isles, the third-largest in Europe, and the twentieth-largest on Earth. Politically, Ireland is divided between the Republic of Ireland, which covers five-sixths of the island, and Northern Ireland, in 2011, the population of Ireland was about 6.4 million, ranking it the second-most populous island in Europe after Great Britain. Just under 4.6 million live in the Republic of Ireland, the islands geography comprises relatively low-lying mountains surrounding a central plain, with several navigable rivers extending inland. The island has lush vegetation, a product of its mild, thick woodlands covered the island until the Middle Ages. As of 2013, the amount of land that is wooded in Ireland is about 11% of the total, there are twenty-six extant mammal species native to Ireland. The Irish climate is moderate and classified as oceanic. As a result, winters are milder than expected for such a northerly area, however, summers are cooler than those in Continental Europe. Rainfall and cloud cover are abundant, the earliest evidence of human presence in Ireland is dated at 10,500 BC. Gaelic Ireland had emerged by the 1st century CE, the island was Christianised from the 5th century onward. Following the Norman invasion in the 12th century, England claimed sovereignty over Ireland, however, English rule did not extend over the whole island until the 16th–17th century Tudor conquest, which led to colonisation by settlers from Britain. In the 1690s, a system of Protestant English rule was designed to materially disadvantage the Catholic majority and Protestant dissenters, with the Acts of Union in 1801, Ireland became a part of the United Kingdom. Northern Ireland saw much civil unrest from the late 1960s until the 1990s and this subsided following a political agreement in 1998. In 1973 the Republic of Ireland joined the European Economic Community while the United Kingdom, Irish culture has had a significant influence on other cultures, especially in the fields of literature. Alongside mainstream Western culture, an indigenous culture exists, as expressed through Gaelic games, Irish music. The culture of the island shares many features with that of Great Britain, including the English language, and sports such as association football, rugby, horse racing. The name Ireland derives from Old Irish Eriu and this in turn derives from Proto-Celtic *Iveriu, which is also the source of Latin Hibernia. Iveriu derives from a root meaning fat, prosperous, during the last glacial period, and up until about 9000 years ago, most of Ireland was covered with ice, most of the time
8.
Townland
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A townland is a small geographical division of land used in Ireland. The townland system is of Gaelic origin, pre-dating the Norman invasion, however, some townland names and boundaries come from Norman manors, plantation divisions, or later creations of the Ordnance Survey. The total number of inhabited townlands was 60,679 in 1911, the total number recognised by the Irish Place Names database as of 2014 was 61,098, including uninhabited townlands, mainly small islands. In Ireland a townland is generally the smallest administrative division of land, the term townland in English is derived from the Old English word tun, denoting an enclosure. The term describes the smallest unit of division in Ireland, based on various forms of Gaelic land division. The term baile, anglicised as bally, is the most dominant element used in Irish townland names, today the term bally denotes an urban settlement, but its precise meaning in ancient Ireland is unclear, as towns had no place in Gaelic social organisation. The modern Irish term for a townland is baile fearainn, the term fearainn means land, territory, quarter. Throughout most of Ulster townlands were known as ballyboes, and represented an area of economic value. In County Cavan similar units were called polls, and in Counties Fermanagh and these names appear to be of English origin, but had become naturalised long before 1600. In modern townland names the prefix pol- is widely found throughout western Ireland, in County Cavan, which contains over half of all townlands in Ulster with the prefix pol-, some should probably be better translated as the poll of. In County Tyrone the following hierarchy of divisions was used, ballybetagh, ballyboe, sessiagh, gort. In County Fermanagh the divisions were ballybetagh, quarter and tate, further subdivisions in Fermanagh appear to be related to liquid or grain measures such as gallons, pottles and pints. In Ulster the ballybetagh was the unit controlled by an Irish sept. Fragmentation of ballybetaghs resulted in units consisting of four, eight, one of these fragmented units, the quarter, representing a quarter of a ballybetagh, was the universal land denomination recorded in the survey of County Donegal conducted in 1608. In the early 17th century 20 per cent of the area of western Ulster was under the control of the church. These termon lands consisted likewise of ballybetaghs and ballyboes, but were held by erenaghs instead of sept leaders, other units of land division used throughout Ireland include, In County Tipperary, capell lands and quatermeers. A capell land consisted of around 20 great acres, in the province of Connacht, quarters and cartrons, a quarter being reckoned as four cartrons, and each cartron being 30 acres. The quarter has also been anglicised as carrow, carhoo or caracute, in County Clare, as in Connacht, quarters, half-quarters, cartrons and sessiagh
9.
Ice age
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An ice age is a period of long-term reduction in the temperature of Earths surface and atmosphere, resulting in the presence or expansion of continental and polar ice sheets and alpine glaciers. Within a long-term ice age, individual pulses of cold climate are termed glacial periods, in the terminology of glaciology, ice age implies the presence of extensive ice sheets in both northern and southern hemispheres. In 1742 Pierre Martel, an engineer and geographer living in Geneva, two years later he published an account of his journey. He reported that the inhabitants of that valley attributed the dispersal of erratic boulders to the glaciers, later similar explanations were reported from other regions of the Alps. In 1815 the carpenter and chamois hunter Jean-Pierre Perraudin explained erratic boulders in the Val de Bagnes in the Swiss canton of Valais as being due to glaciers previously extending further. An unknown woodcutter from Meiringen in the Bernese Oberland advocated a similar idea in a discussion with the Swiss-German geologist Jean de Charpentier in 1834, comparable explanations are also known from the Val de Ferret in the Valais and the Seeland in western Switzerland and in Goethes scientific work. Such explanations could also be found in parts of the world. When the Bavarian naturalist Ernst von Bibra visited the Chilean Andes in 1849–1850, meanwhile, European scholars had begun to wonder what had caused the dispersal of erratic material. From the middle of the 18th century, some discussed ice as a means of transport, the Swedish mining expert Daniel Tilas was, in 1742, the first person to suggest drifting sea ice in order to explain the presence of erratic boulders in the Scandinavian and Baltic regions. In 1795, the Scottish philosopher and gentleman naturalist, James Hutton, two decades later, in 1818, the Swedish botanist Göran Wahlenberg published his theory of a glaciation of the Scandinavian peninsula. He regarded glaciation as a regional phenomenon, only a few years later, the Danish-Norwegian geologist Jens Esmark argued a sequence of worldwide ice ages. In a paper published in 1824, Esmark proposed changes in climate as the cause of those glaciations and he attempted to show that they originated from changes in Earths orbit. During the following years, Esmarks ideas were discussed and taken over in parts by Swedish, Scottish, at the University of Edinburgh Robert Jameson seemed to be relatively open to Esmarks ideas, as reviewed by Norwegian professor of glaciology Bjørn G. Andersen. Jamesons remarks about ancient glaciers in Scotland were most probably prompted by Esmark, in Germany, Albrecht Reinhard Bernhardi, a geologist and professor of forestry at an academy in Dreissigacker, since incorporated in the southern Thuringian city of Meiningen, adopted Esmarks theory. In a paper published in 1832, Bernhardi speculated about former polar ice caps reaching as far as the zones of the globe. When he read his paper before the Schweizerische Naturforschende Gesellschaft, most scientists remained sceptical, finally, Venetz convinced his friend Jean de Charpentier. De Charpentier transformed Venetzs idea into a theory with a limited to the Alps. In fact, both men shared the same volcanistic, or in de Charpentiers case rather plutonistic assumptions, about the Earths history, in 1834, de Charpentier presented his paper before the Schweizerische Naturforschende Gesellschaft
10.
Cirque
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A cirque is an amphitheatre-like valley formed by glacial erosion. Alternative names for this landform are corrie and cwm, a cirque may also be a similarly shaped landform arising from fluvial erosion. The concave shape of a glacial cirque is open on the downhill side, cliff-like slopes down which ice and glaciated debris combine and converge from the three or more higher sides. The fluvial cirque or makhtesh, found in karst landscapes, is formed by intermittent river flow cutting through layers of limestone, a common feature for all fluvial-erosion cirques is a terrain which includes erosion resistant upper structures overlying materials which are more easily eroded. Glacial cirques are found amongst mountain ranges throughout the world, classic cirques are typically about one kilometer long, situated high on a mountainside near the firn line, they are typically partially surrounded on three sides by steep cliffs. The highest cliff often is called a headwall, the fourth side forms the lip, threshold or sill, the side at which the glacier flowed away from the cirque. Many glacial cirques contain tarns dammed by either till or a bedrock threshold, when enough snow accumulates it can flow out the opening of the bowl and form valley glaciers which may be several kilometers long. These areas are sheltered from heat, encouraging the accumulation of snow, if the accumulation of snow increases, the process of nivation follows, whereby a hollow in a slope may be enlarged by ice segregation weathering and glacial erosion. Ice segregation erodes the rock vertical rock face and causes it to disintegrate, eventually, this hollow may become large enough that glacial erosion intensifies. The enlarging of this open ended concavity creates a larger leeward deposition zone, debris in the ice also may abrade the bed surface, should ice move down a slope it would have a ‘sandpaper effect’ on the bedrock beneath, on which it scrapes. Eventually, the hollow may become a bowl shape in the side of the mountain, with the headwall being weathered by ice segregation. The basin will become deeper as it continues to be eroded by ice segregation and abrasion, should ice segregation, plucking and abrasion continue, the dimensions of the cirque will increase, but the proportion of the landform would remain roughly the same. A bergschrund forms when the movement of the glacier separates the moving ice from the ice forming a crevasse. The method of erosion of the headwall lying between the surface of the glacier and the floor has been attributed to freeze-thaw mechanisms. The temperature within the bergschrund changes very little, however, studies have shown that ice segregation may happen with only changes in temperature. Water that flows into the bergschrund can be cooled to freezing temperatures by the ice allowing freeze-thaw mechanisms to occur. If two adjacent cirques erode toward one another, an arête, or steep sided ridge, forms, when three or more cirques erode toward one another, a pyramidal peak is created. In some cases, this peak will be accessible by one or more arêtes
