A summit is a point on a surface, higher in elevation than all points adjacent to it. The topographic terms acme, apex and zenith are synonymous; the term top is used only for a mountain peak, located at some distance from the nearest point of higher elevation. For example, a big massive rock next to the main summit of a mountain is not considered a summit. Summits near a higher peak, with some prominence or isolation, but not reaching a certain cutoff value for the quantities, are considered subsummits of the higher peak, are considered part of the same mountain. A pyramidal peak is an exaggerated form produced by ice erosion of a mountain top. Summit may refer to the highest point along a line, trail, or route; the highest summit in the world is Everest with height of 8844.43 m above sea level. The first official ascent was made by Sir Edmund Hillary, they reached the mountain`s peak in 1953. Whether a highest point is classified as a summit, a sub peak or a separate mountain is subjective; the UIAA definition of a peak is.
Otherwise, it's a subpeak. In many parts of the western United States, the term summit refers to the highest point along a road, highway, or railroad. For example, the highest point along Interstate 80 in California is referred to as Donner Summit and the highest point on Interstate 5 is Siskiyou Mountain Summit. A summit climbing differs from the common mountaineering. Summit expedition requires: 1+ year of training, a good physical shape, a special gear. Although a huge part of climber’s stuff can be left and taken at the base camps or given to porters, there is a long list of personal equipment. In addition to common mountaineers’ gear, Summit climbers need to take Diamox and bottles of oxygen. There are special requirements for crampons, ice axe, rappel device, etc. Geoid Hill – Landform that extends above the surrounding terrain Nadir Summit accordance Peak finder Summit Climbing Gear List
Ordnance Survey is the national mapping agency of the United Kingdom which covers the island of Great Britain. Since 1 April 2015 part of Ordnance Survey has operated as Ordnance Survey Ltd, a government-owned company, 100% in public ownership; the Ordnance Survey Board remains accountable to the Secretary of State for Business and Industrial Strategy. It is a member of the Public Data Group; the agency's name indicates its original military purpose, to map Scotland in the wake of the Jacobite rising of 1745. There was a more general and nationwide need in light of the potential threat of invasion during the Napoleonic Wars. Ordnance Survey mapping is classified as either "large-scale" or "small-scale"; the Survey's large-scale mapping comprises 1:2,500 maps for 1:10,000 more generally. These large scale maps are used in professional land-use contexts and were available as sheets until the 1980s, when they were digitised. Small-scale mapping for leisure use includes the 1:25,000 "Explorer" series, the 1:50,000 "Landranger" series and the 1:250,000 road maps.
These are still available in traditional sheet form. Ordnance Survey maps remain in copyright for fifty years after their publication; some of the Copyright Libraries hold complete or near-complete collections of pre-digital OS mapping. The origins of the Ordnance Survey lie in the aftermath of the Jacobite rising of 1745, defeated by forces loyal to the government at the Battle of Culloden in 1746. Prince William, Duke of Cumberland realised that the British Army did not have a good map of the Scottish Highlands to locate Jacobite dissenters such as Simon Fraser, 11th Lord Lovat so that they could be put on trial. In 1747, Lieutenant-Colonel David Watson proposed the compilation of a map of the Highlands to help to subjugate the clans. In response, King George II charged Watson with making a military survey of the Highlands under the command of the Duke of Cumberland. Among Watson's assistants were William Roy, Paul Sandby and John Manson; the survey was produced at a scale of 1 inch to 1000 yards and included "the Duke of Cumberland's Map", now held in the British Library.
Roy had an illustrious career in the Royal Engineers, rising to the rank of General, he was responsible for the British share of the work in determining the relative positions of the French and British royal observatories. This work was the starting point of the Principal Triangulation of Great Britain, led to the creation of the Ordnance Survey itself. Roy's technical skills and leadership set the high standard. Work was begun in earnest in 1790 under Roy's supervision, when the Board of Ordnance began a national military survey starting with the south coast of England. Roy's birthplace near Carluke in South Lanarkshire is today marked by a memorial in the form of a large OS trig point. By 1791 the Board received the newer Ramsden theodolite, work began on mapping southern Great Britain using a five-mile baseline on Hounslow Heath that Roy himself had measured. In 1991 Royal Mail marked the bicentenary by issuing a set of postage stamps featuring maps of the Kentish village of Hamstreet. In 1801 the first one-inch-to-the-mile map was published, detailing the county of Kent, with Essex following shortly afterwards.
The Kent map was published and stopped at the county border, while the Essex maps were published by Ordnance Survey and ignore the county border, setting the trend for future Ordnance Survey maps. In the next 20 years about a third of England and Wales was mapped at the same scale under the direction of William Mudge, as other military matters took precedence, it took until 1823 to re-establish a relationship with the French survey made by Roy in 1787. By 1810 one inch to the mile maps of most of the south of England were completed, but they were withdrawn from sale between 1811 and 1816 because of security fears. By 1840 the one-inch survey had covered all of Wales and all but the six northernmost counties of England, it was hard work: Major Thomas Colby, the longest-serving Director General of Ordnance Survey, walked 586 miles in 22 days on a reconnaissance in 1819. In 1824, Colby and most of his staff moved to Ireland to work on a six-inches-to-the-mile valuation survey; the survey of Ireland, county by county, was completed in 1846.
The suspicions and tensions it caused in rural Ireland are the subject of Brian Friel's play Translations. Colby was not only involved in the design of specialist measuring equipment, he established a systematic collection of place names, reorganised the map-making process to produce clear, accurate plans. Place names were recorded in "Name Books", a system first used in Ireland; the instructions for their use were: The persons employed on the survey are to endeavour to obtain the correct orthography of the names of places by diligently consulting the best authorities within their reach. The name of each place is to be inserted as it is spelt, in the first column of the name book and the various modes of spelling it used in books, writings &c. are to be inserted in the second column, with the authority placed in the third column opposite to each. Whilst these procedures produced excellent results, mistakes were made: for instance, the Pilgrims Way in the North Downs labelled the wrong route
Rhinog Fawr is a mountain in Snowdonia, North Wales and forms part of the Rhinogydd range. It is the third highest summit of the Rhinogydd, losing out to Y Diffwys respectively, its smaller cousin Rhinog Fach lies to the south, separated by the pass of Bwlch Drws Ardudwy, while its other neighbour, Moel Ysgyfarnogod lies to the north. In common with most of the range, the terrain is characterised by hard sedimentary rock covered with heather, making progress on foot difficult. At 510m, nestled in crags, lies Llyn Du, a small tarn beneath the summit; the ascent is most made from the north-east or north-west, via the Roman Steps pass. Www.geograph.co.uk: photos of Rhinog Fawr and surrounding area
Snowdonia is a mountainous region in northwestern Wales and a national park of 823 square miles in area. It was the first to be designated of the three national parks in Wales, in 1951, it contains the highest peaks in the United Kingdom outside of Scotland. The English name for the area derives from Snowdon, the highest mountain in Wales at 3560 ft. In Welsh, the area is named Eryri. A held belief is that the name is derived from eryr, thus means'the abode/land of eagles', but recent evidence is that it means Highlands, is related to the Latin oriri as leading Welsh scholar Sir Ifor Williams proved; the term Eryri first appeared in a manuscript in the 9th-century Historia Brittonum, in an account of the downfall of the semi-legendary 5th-century king Gwrtheyrn. In the Middle Ages the title Prince of Wales and Lord of Snowdonia was used by Llywelyn ap Gruffudd. Before the boundaries of the national park were designated, "Snowdonia" was used to refer to a smaller area, namely the upland area of northern Gwynedd centred on the Snowdon massif, whereas the national park covers an area more than twice that size extending far to the south into Meirionnydd.
This is apparent in books published prior to 1951, such as the classic travelogue Wild Wales by George Borrow and The Mountains of Snowdonia by H. Carr & G. Lister. F. J. North, as editor of the book Snowdonia, states "When the Committee delineated provisional boundaries, they included areas some distance beyond Snowdonia proper." The traditional Snowdonia thus includes the ranges of Snowdon and its satellites, the Glyderau, the Carneddau and the Moel Siabod group. It does not include the hills to the south of Maentwrog; as Eryri, this area has a unique place in Welsh history and culture. Snowdonia National Park was established in 1951 as the third national park in Britain, following the Peak District and the Lake District, it covers 827 square miles, has 37 miles of coastline. The Snowdonia National Park covers parts of the counties of Conwy; the park is governed by the Snowdonia National Park Authority, made up of local government and Welsh representatives, its main offices are at Penrhyndeudraeth.
Unlike national parks in other countries, Snowdonia are made up of both public and private lands under central planning authority. The makeup of land ownership at Snowdonia is as follows: More than 26,000 people live within the park. 58.6% of the population could speak Welsh in 2011. While most of the land is either open or mountainous land, there is a significant amount of agricultural activity within the park. Since the local government re-organisation of 1998, the park lies in the county of Gwynedd, in the county borough of Conwy, it is governed by the 18-member Snowdonia National Park Authority. Unusually, Snowdonia National Park has a hole in the middle, around the town of Blaenau Ffestiniog, a slate quarrying centre; this was deliberately excluded from the park when it was set up to allow the development of new light industry to replace the reduced slate industry. The Snowdonia Society is a registered charity formed in 1967, it is a voluntary group of people with an interest in its protection.
Amory Lovins led the successful 1970s opposition to stop Rio Tinto digging up the area for a massive mine. Research indicates that there were 3.67 million visitors to Snowdonia National Park in 2013, with 9.74 million tourist days spent in the park during that year. Total tourist expenditure was £433.6 million in 2013. Snowdonia may be divided into four areas: The northernmost area is the most popular with tourists, includes Moel Hebog, Mynydd Mawr and the Nantlle Ridge; these last three groups are the highest mountains in Wales, include all Wales' mountains higher than 3000 feet. The second area includes peaks such as Moel Siabod, the Moelwynion, the mountains around Blaenau Ffestiniog; the third area includes the Rhinogydd in the west as well as the Arenig and the Migneint, Rhobell Fawr. This area is not as popular with tourists as the other areas, due to its remoteness; the southernmost area includes Cadair Idris, the Tarren range, the Dyfi hills, the Aran group, including Aran Fawddwy, the highest mountain in the United Kingdom south of Snowdon.
The Berwyn range to the south east, has the western part of it in the park, but the highest summits to the east have been omitted. Many of the hikers in the area concentrate on Snowdon itself, it is regarded as a fine mountain, but at times gets crowded. The other high mountains with their boulder-strewn summits—as well as Tryfan, one of the few mountains in the UK south of Scotland whose ascent needs hands as well as feet—are very popular. However, there are some spectacular walks in Snowdonia on the lower mountains, they tend to be unfrequented. Among hikers' favourites are Y Garn along the ridge to Elidir Fawr.
A mountain range or hill range is a series of mountains or hills ranged in a line and connected by high ground. A mountain system or mountain belt is a group of mountain ranges with similarity in form and alignment that have arisen from the same cause an orogeny. Mountain ranges are formed by a variety of geological processes, but most of the significant ones on Earth are the result of plate tectonics. Mountain ranges are found on many planetary mass objects in the Solar System and are a feature of most terrestrial planets. Mountain ranges are segmented by highlands or mountain passes and valleys. Individual mountains within the same mountain range do not 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, volcanic landforms resulting in a variety of rock types. Most geologically young mountain ranges on the Earth's land surface are associated with either the Pacific Ring of Fire or the Alpide Belt.
The Pacific Ring of Fire includes the Andes of South America, extends through the North American Cordillera along the Pacific Coast, the Aleutian Range, on through Kamchatka, Taiwan, the Philippines, Papua New Guinea, to New Zealand. The Andes is 7,000 kilometres long and is considered the world's longest mountain system; the Alpide belt includes Indonesia and Southeast Asia, through the Himalaya, Caucasus Mountains, Balkan Mountains fold mountain range, the Alps, ends in the Spanish mountains and the Atlas Mountains. The belt includes other European and Asian mountain ranges; the Himalayas contain the highest mountains in the world, including Mount Everest, 8,848 metres high and traverses the border between China and Nepal. Mountain ranges outside these two systems include the Arctic Cordillera, the Urals, the Appalachians, the Scandinavian Mountains, the Great Dividing Range, the Altai Mountains and the Hijaz Mountains. If the definition of a mountain range is stretched to include underwater mountains the Ocean Ridges form the longest continuous mountain system on Earth, with a length of 65,000 kilometres.
The mountain systems of the earth are characterized by a tree structure, where mountain ranges can contain sub-ranges. The sub-range relationship is 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, the White Mountains and the Blue Ridge Mountains are children of the Appalachians; the parent-child expression extends to the sub-ranges themselves: the Sandwich Range and the Presidential Range are children of the White Mountains, while the Presidential Range is parent to the Northern Presidential Range and Southern Presidential Range. The position of mountains influences climate, such as snow; when air masses move up and over mountains, the air cools producing orographic precipitation. As the air descends on the leeward side, it warms again and is drier, having been stripped of much of its moisture.
A rain shadow will affect the leeward side of a range. Mountain ranges are subjected to erosional forces which work to tear them down; the basins adjacent to an eroding mountain range are filled with sediments which are buried and turned into sedimentary rock. Erosion is at work while the mountains are being uplifted until the mountains are reduced to low hills and plains; the early Cenozoic uplift of the Rocky Mountains of Colorado provides an example. As the uplift was occurring some 10,000 feet of Mesozoic sedimentary strata were removed by erosion over the core of the mountain range and spread as sand and clays across the Great Plains to the east; this mass of rock was removed as the range was undergoing uplift. The removal of such a mass from the core of the range most caused further uplift as the region adjusted isostatically in response to the removed weight. Rivers are traditionally believed to be the principal cause of mountain range erosion, by cutting into bedrock and transporting sediment.
Computer simulation has shown that as mountain belts change from tectonically active to inactive, the rate of erosion drops because there are fewer abrasive particles in the water and fewer landslides. Mountains on other planets and natural satellites of the Solar System are isolated and formed by processes such as impacts, though there are examples of mountain ranges somewhat similar to those on Earth. Saturn's moon Titan and Pluto, in particular exhibit large mountain ranges in chains composed of ices rather than rock. Examples include the Mithrim Montes and Doom Mons on Titan, Tenzing Montes and Hillary Montes on Pluto; some terrestrial planets other than Earth exhibit rocky mountain ranges, such as Maxwell Montes on Venus taller than any on Earth and Tartarus Montes on Mars, Jupiter's moon Io has mountain ranges formed from tectonic processes including Boösaule Montes, Dorian Montes, Hi'iaka Montes and Euboea Montes. Peakbagger Ranges Home Page Bivouac.com
Y Llethr is the highest mountain in the Rhinogydd range of Snowdonia, in north Wales. The summit consists of a flat grassy top marked only by a small cairn; the summit is more in keeping with its southern flanks than its rugged northern approach. The shortest route to the summit goes from the valley of Cwm Nantcol in the west, either directly or via Bwlch Drws Ardudwy and over the mountain of Rhinog Fach. To the south lies the mountain of Diffwys, to the south-east lies the mountain of Y Garn, to the north lies Rhinog Fach and to the west lies the hill of Moelfre
North Wales is a region of Wales. Retail and educational infrastructure are centred on Wrexham, Colwyn Bay and Bangor, it is bordered to the rest of Wales with the counties of Ceredigion and Powys, to the east by the English counties of Shropshire and Cheshire. North Wales was traditionally divided into three regions: Upper Gwynedd, defined as the area north of the River Dyfi and west of the River Conwy); the division with the rest of Wales depends on the particular use being made. For example, the boundary of North Wales Police differs from the boundary of the North Wales area of the Natural Resources Wales and the North Wales Regional Transport Consortium; the historic boundary follows the pre-1996 county boundaries of Merionethshire and Denbighshire which in turn follows the geographic features of the river Dovey to Aran Fawddwy crossing the high moorlands following the watershed until reaching Cadair Berwyn and following the river Rhaeadr and river Tanat to the Shropshire border. Montgomeryshire, one of the historic counties of Wales, is sometimes referred to as being in North Wales.
The region is steeped in history and was for a millennium known as the Kingdom of Gwynedd. The mountainous stronghold of Snowdonia formed the nucleus of that realm and would become the last redoubt of independent Wales — only overcome in 1283. To this day it remains a stronghold of the Welsh language and a centre for Welsh national and cultural identity; the area is home to two of the three UNESCO World Heritage Sites in Wales. These are Pontcysyllte Aqueduct and canal and, the Edwardian castles and town walls of the region which comprise those at Caernarfon, Beaumaris and Harlech, it shares with Powys and Ceredigion the distinction of hosting the only UNESCO Biosphere reserve in Wales, Biosffer Dyfi Biosphere. The region is made up of the following administrative areas: the county borough of Wrexham the county of Flintshire the county of Denbighshire the county borough of Conwy the county of Gwynedd the county of the Isle of Anglesey In addition to the six Local Authority divisions, North Wales is divided into the following preserved counties for various ceremonial purposes: the preserved county of Clwyd the preserved county of Gwynedd North Wales was a European Parliament constituency until 1999.
There is an electoral region for the National Assembly for Wales with the name, which covers the northeast of Wales as well as the northern-most coastal areas of north-western Wales. The area is rural with many mountains and valleys. This, in combination with its coast, means. Farming, once the principal economic force in the area, is now much reduced in importance; the average income per capita of the local population is the lowest in the UK and much of the region has EU Objective 1 status. The eastern part of North Wales contains the most populous areas, with more than 300,000 people living in the areas around Wrexham and Deeside. Wrexham, with a population of 63,084 in 2001 is the largest town; the total population of North Wales is 687,937. The majority of other settlements are along the coast, including some popular resort towns, such as Rhyl, Llandudno and Tywyn; the A55 road links these towns to cities like Manchester and Birmingham and the port of Holyhead for ferries to Ireland. There are two cathedral cities – Bangor and St. Asaph – and a number of mediaeval castles The area of North Wales is about 6,172 square kilometres, making it larger than the country of Brunei, or the island of Bali.
The highest mountain in Wales and Ireland, is Snowdon in northwest Wales. North Wales has a diverse and complex geology with Precambrian schists along the Menai Strait and the great Cambrian dome behind Harlech and underlying much of western Snowdonia. In the Ordovician period much volcanism deposited a range of minerals and rocks over the north western parts of Gwynedd whilst to the east of the River Conwy lies a large area of upland rolling hills underlain by the Silurian mudstones and grits comprising the Denbigh and Migneint Moors. To the east, around Llangollen, to the north on Halkyn Mountain and the Great Orme and in eastern Anglesey are beds of limestone from which metals have been mined since pre-Roman times. Added to all this are the complexities posed by Parys Mountain and the outcrops of unusual minerals such as Jasper and Mona Marble which make the area of special interest to geologists. North Wales has a distinct regional identity, its dialect of the Welsh language differs from that of other regions, such as South Wales, in some ways: for example llefrith is used in most of the North instead of llaeth for "milk".