The Iguazu Waterfalls
Iguau Falls (Iguau Falls; Portuguese: Cataratas do Iguau IPA [kata'ats du igwa'su]; Spanish: Cataratas del Iguaz IPA [kata'atas del iwa'su]) are waterfalls of the Iguazu River located on the border of the Brazilian state of Paran and the Argentine province of Misiones, around the coordinates 25°41S, 54°26W. They divide the river into the upper and lower Iguazu.
The name Iguau comes from the Guarani or Tupi words y (water) and guas (big). Legend has it that a god planned to marry a beautiful aborigine named Naip, who fled with her mortal lover Tarob in a canoe. In rage, the god sliced the river creating the waterfalls, condemning the lovers to an eternal fall. The first European to find the falls was the Spanish Conquistador lvar Nez Cabeza de Vaca in 1541, after whom one of the falls in the Argentine side is named. The falls were rediscovered by Boselli at the end of the nineteenth century, and one of the Argentinian falls is named after him.
The waterfall system consists of 275 falls along 2.7 kilometres (1.67 miles) of the Iguazu River. Some of the individual falls are up to 82 metres (269 feet) in height, though the majority are about 64 metres (210 feet). The Garganta del Diablo or Devil's Throat (Garganta do Diabo in Portuguese), a U-shaped 150-metre-wide and 700-metre-long (490 by 2300 feet) cliff, is the most impressive of all, and marks the border between Argentina and Brazil. Most of the falls are within Argentine territory. About 900 metres of the 2.7-kilometre length does not have water flowing over it. The edge of the basalt cap recedes only 3 mm per year.
The water of the lower Iguazu collects in a canyon that drains into the Rio Parana.
The falls are easily reached from the two main towns on either side of the falls: Foz do Iguau in the Brazilian state of Paran, and Puerto Iguaz in the Argentine province of Misiones as well as from Ciudad del Este (Paraguay) on the other side of the Parana river from Foz do Iguau . The falls are shared by the Iguaz National Park (Argentina) and Iguau National Park (Brazil). These parks were designated UNESCO World Heritage Sites in 1984 and 1986, respectively.
On the Brazilian side there is a long walkway along the canyon with an extension to the lower base of the “Garganta del Diablo”. The Argentian access is facilitated by a train (“Tren a las Cataratas”) (in early August 2007 the name for the free train operated in the National Park is "Tren ecologico de la selva") that brings visitors to different walkways. The “Paseo Garganta del Diablo” is a one kilometer long way to bring the visitor directly over the falls of the “Garganta del Diablo”. Other walkways allow access to the elongated stretch of falls on the Argentinian side and to the ferry that connects to the San Martin island.
The fall area provides opportunities for water sports and rock climbing.
The Great Canyon
The Grand Canyon is a colorful steep-sided gorge carved by the Colorado River in the U.S. state of Arizona. It is largely contained within the Grand Canyon National Park — one of the first national parks in the United States. President Theodore Roosevelt was a major proponent of conservation of the Grand Canyon area, and visited on numerous occasions to hunt and enjoy the scenery.
The canyon, created by the Colorado River over 6 million years, is 277 miles (446 km) long, ranges in width from 4 to 18 miles (6.4 to 24 kilometers), and attains a depth of more than a mile (1.6 km). Nearly two billion years of the Earth's history have been exposed as the Colorado River and its tributaries cut their channels through layer after layer of rock while the Colorado Plateau was uplifted.
During prehistory, the area was inhabited by Native Americans who built settlements within the canyon and its many caves. The first European known to have viewed the Grand Canyon was Garc?a L?pez de C?rdenas from Spain, who arrived in 1540.
The Grand Canyon was largely unknown until after the U.S. Civil War. It appears to have received its name in 1868. An article in The Weekly Arizona Miner, referring to an upcoming exploration of the canyon, wished the explorers "easy sailing down the 'grand canyon'..."]
In 1869, Major John Wesley Powell, a one-armed Civil War veteran with a thirst for science and adventure, made the first recorded journey through the canyon on the Colorado River. He accomplished this trek with nine men in four small wooden boats, though only six men completed the journey. Powell referred to the sedimentary rock units exposed in the canyon as "leaves in a great story book".
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Migrating Animals in the Serengeti Park
The Maasai people had been grazing their livestock in the open plains which they knew as “endless plain” for over 200 years when the first white man, Stewart Edward White recorded coming across it in 1913. The name Serengeti is an approximation of the word used by the Maasai to describe the area.
The area was declared as a ‘protected area’ in 1921 by the then German colonial administration. The national park was (gazetted??) established in 1951 by the English administration and it then became famous after the initial work of Bernhard Grzimek and his son Michael in the 1950’s. Together they produced the book and film Serengeti Shall Not Die, widely recognized as one of the most important early pieces of nature conservation documentary.
As part of the gazetting of the park and in order to preserve wildlife from human interruption the area’s residents were moved to the Ngorongoro highlands. There is still considerable controversy surrounding this move, with claims made of coercion and deceit on the part of the colonial authorities.
The Serengeti is Tanzania's first national park and remains the flagship of the country’s tourism industry, providing a major draw to the “Northern Safari Circuit”, encompassing Lake Manyara, Tarangire and Arusha national parks, as well as Ngorongoro Conservation Area
The park covers 14,763km? of grassland plains and savanna as well as riverine forest and woodlands. The park lies in the north of the country, bordered to the north by the national Tanzania and Kenyan border, where it is contiguous with the Masai Mara National Reserve. To the south-east of the park is Ngorongoro Conservation Area, to the south-west lies Maswa Game Reserve, and to the western borders are Ikorongo and Grumeti Game Reserves, finally to the north-east lies Loliondo Game Control Area.
Human habitation is forbidden in the National Park with the exception of staff for TANAPA, researchers and staff of Frankfurt Zoological Society, and staff of the various lodges and hotels. The main settlement is Seronera which houses the majority of research staff and the park’s main headquarters, including its primary airstrip.
As well as the migration of ungulates, the park is well known for its healthy stock of other resident wildlife, particularly the "Big Five", named for the five most prized trophies taken by hunters, lion, leopard, elephant, rhinoceros and buffalo. These species remain the key attractions to tourists, but the park also supports many further species including cheetah, gazelle and giraffe as well as a large and varied bird population.
The Victoria Waterfalls
Mosi-oa-Tunya is the name used by the local people and Victoria Falls is the later name given by Europeans (see pre-colonial history, below).
Although Victoria Falls constitute neither the highest nor the widest waterfall in the world, their claim to be the largest is based on a width of 1.7 km (1 mile) and height of 108 m (360 ft), forming the largest sheet of falling water in the world. The falls' maximum flow rate compares well with that of other major waterfalls (see table below).
The unusual form of Victoria Falls enables virtually the whole width of the falls to be viewed face-on, at the same level as the top, from as close as 60 m (200 ft), because the whole Zambezi River drops into a deep, narrow slotlike chasm, connected to a long series of gorges. Few other waterfalls allow such a close approach on foot.
Many of Africa's animals and birds can be seen in the immediate vicinity of Victoria Falls, and the continent's range of river fish is also well represented in the Zambezi, enabling wildlife viewing and sport fishing to be combined with sightseeing.
Victoria Falls are one of Africa's major tourist attractions, and are a UNESCO World Heritage Site (see box below). The falls are shared between Zambia and Zimbabwe, and each country has a national park to protect them and a town serving as a tourism centre: Mosi-oa-Tunya National Park and Livingstone in Zambia, and Victoria Falls National Park and the town of Victoria Falls in Zimbabwe.
For a considerable distance above the falls, the Zambezi flows over a level sheet of basalt, in a shallow valley bounded by low and distant sandstone hills. The river's course is dotted with numerous tree-covered islands, which increase in number as the river approaches the falls. There are no mountains, escarpments, or deep valleys which might be expected to create a waterfall, only flat plateau extending hundreds of kilometres in all directions.
The falls are formed as the full width of the river plummets in a single vertical drop into a chasm 60–120 m (200–400 ft) wide, carved by its waters along a fracture zone in the basalt plateau. The depth of the chasm, called the First Gorge, varies from 80 m (262 ft) at its western end to 108 m (360 ft) in the centre. The only outlet to the First Gorge is a 110 m (360 ft) wide gap about two-thirds of the way across the width of the falls from the western end, through which the whole volume of the river pours into the Victoria Falls gorges.
There are two islands on the crest of the falls that are large enough to divide the curtain of water even at full flood: Boaruka Island (or Cataract Island) near the western bank, and Livingstone Island near the middle. At less than full flood, additional islets divide the curtain of water into separate parallel streams. The main streams are named, in order from from Zimbabwe (west) to Zambia (east): Leaping Water (called Devil's Cataract by some), Main Falls, Rainbow Falls (the highest) and the Eastern Cataract.
Great Barrier Reef
The Great Barrier Reef in Australia is the world's largest coral reef system, composed of roughly 3,000 individual reefs and 900 islands stretching for 2,600 kilometres (1,616 mi) over an area of approximately 344,400 square kilometres (132,974 sq mi). The reef is located in the Coral Sea, off the coast of Queensland in northeast Australia.
The Great Barrier Reef can be seen from outer space and is the world's biggest single structure made by living organisms. This reef structure is composed of and built by billions of tiny organisms, known as coral polyps. The Great Barrier Reef supports a wide diversity of life, and was selected as a World Heritage Site in 1981. CNN has labelled it one of the seven natural wonders of the world. The Queensland National Trust has named it a state icon of Queensland.
A large part of the reef is protected by the Great Barrier Reef Marine Park, which helps to limit the impact of human use, such as overfishing and tourism. Other environmental pressures to the reef and its ecosystem include water quality from runoff, climate change accompanied by mass coral bleaching, and cyclic outbreaks of the crown-of-thorns starfish.
Geology and geography
The Reef Research Centre, a Cooperative Research Centre, has found coral 'skeleton' deposits that date back half a million years. The Great Barrier Reef Marine Park Authority says that corals have been growing in the region for as long as 25 million years, but have not always formed coral reef structures. The GBRMPA considers the earliest evidence to suggest complete reef structures to have been 600,000 years ago.
Dating inconsistencies stem from how reefs fluctuate (grow and recede) as the sea level changes. They can increase in diameter from 1 to 2 centimetres per year, and grow vertically anywhere from 1 to 15 centimetres (0.4–12 in) per year; however, they are limited to growing above a depth of 150 metres (492 ft) due to their need for sunlight, and cannot grow above sea level.
According to the Great Barrier Reef Marine Park Authority, the current, living reef structure is believed to have begun growing on an older platform about 20,000 years ago. The Australian Institute of Marine Science agrees, which places the beginning of the growth of the current reef at the time of the Last Glacial Maximum. At around that time, the sea level was 120 metres (394 ft) lower than it is today. The land that formed the substrate of the Great Barrier Reef was a coastal plain with some larger hills (some of which were themselves remnants of older reefs).
From 20,000 years ago until 6,000 years ago, the sea level rose steadily. As it rose, the corals could then grow higher on the hills of the coastal plain. By around 13,000 years ago the sea level was 60 metres (197 ft) lower than the present day, and corals began to grow around the hills of the coastal plain, which were, by then, continental islands. As the sea level rose further still, most of the continental islands were submerged. The corals could then overgrow the hills, to form the present cays and reefs. Sea level on the Great Barrier Reef has not risen significantly in the last 6,000 years.The CRC Reef Research Centre estimates the age of the present, living reef structure at 6,000 to 8,000 years old.
The remains of an ancient barrier reef similar to the Great Barrier Reef can be found in The Kimberley, a northern region of Western Australia.
The Great Barrier Reef World Heritage Area has been divided into 70 bioregions, of which 30 are reef bioregions, and 40 are non-reef bioregions. In the northern part of the Great Barrier Reef, ribbon reefs and deltaic reefs have formed; these structures are not found in the rest of the Great Barrier Reef system.
The Niagara Waterfalls
Niagara Falls (French: les Chutes du Niagara) is a set of massive waterfalls located on the Niagara River, straddling the international border separating the Canadian province of Ontario and the U.S. state of New York. The falls are located 17 miles (27 km) north-northwest of Buffalo, New York, 75 miles (120 km) south-southeast of Toronto, Ontario, between the twin cities of Niagara Falls, Ontario, and Niagara Falls, New York.
Niagara Falls is comprised of two major sections separated by Goat Island: Horseshoe Falls, on the Canadian side of the border and American Falls on the United States side. The smaller Bridal Veil Falls also is located on the American side, separated from the main falls by Luna Island. Niagara Falls were formed when glaciers receded at the end of the Wisconsin glaciation (the last ice age), and water from the newly-formed Great Lakes carved a path through the Niagara Escarpment en route to the Atlantic Ocean. While not exceptionally high, the Niagara Falls are very wide. More than six million cubic feet (168,000 m?) of water fall over the crest line every minute in high flow, and almost 4 million cubic feet (110,000 m?) on average. It is the most powerful waterfall in North America.
The Niagara Falls are renowned both for their beauty and as a valuable source of hydroelectric power. Managing the balance between recreational, commercial, and industrial uses has been a challenge for the stewards of the falls since the 1800s.
Niagara Falls is divided into the Horseshoe Falls and the American Falls. The Horseshoe Falls drop about 173 feet (53 m). The American Falls drop about 70 feet (21 m) before reaching a jumble of fallen rocks that were deposited by a massive rock slide in 1954. The larger Horseshoe Falls are about 2,600 feet (792 m) wide, while the American Falls are 1,060 feet (323 m) wide. The volume of water approaching the falls during peak flow season is 202,000 cubic feet per second (5,720 m?/s). By comparison Africa's spectacular Victoria Falls has over 15 million cubic feet (424,750 m?) of water falling over its crest line each minute during the peak of the wet season (250,000 cu ft/7,079 m? per second). Since the flow is a direct function of the Lake Erie water elevation, it typically peaks in late spring or early summer. During the summer months, 100,000 cubic feet per second (2,832 m?/s) of water actually traverses the Falls, some 90% of which goes over the Horseshoe Falls, while the balance is diverted to hydroelectric facilities. This is accomplished by employing a weir with movable gates upstream from the Horseshoe Falls. The Falls flow is further halved at night, and during the low tourist season in the winter, remains a flat 50,000 cubic feet per second (1,416 m?/s). Water diversion is regulated by the 1950 Niagara Treaty and is administered by the International Niagara Board of Control (IJC).
Viewpoints on the American shore generally are astride or behind the falls. The falls face directly toward the Canadian shore. Thus, the most complete views of Niagara Falls are available from the Canadian shoreline.
The features that became the Niagara Falls were created by the Wisconsin glaciation, about 10,000 years ago. The same forces also created the North American Great Lakes and the Niagara River. All were dug by a continental ice sheet that drove through the area like a giant bulldozer, deepening some river channels to make lakes and damming others with debris. Scientists believe that there is an old valley, buried by glacial drift, at the approximate location of the present Welland Canal.
When the ice melted, the upper Great Lakes emptied into the Niagara River, which followed the rearranged topography across the Niagara Escarpment. In time, the river cut a gorge through the north facing cliff or cuesta.
The unusual rock formations did not erode evenly because of the interactions of three major rock formations. One rock formation was composed of erosion-resistant limestone and Lockport dolostone. That hard layer of stone eroded more slowly than underlying materials. The aerial photo clearly shows the hard caprock, the Lockport Formation (Middle Silurian), which underlies the rapids above the falls and approximately the upper third of the high gorge wall.
Immediately below the hard-rock formation, comprising about two thirds of the cliff, lay a weaker, softer, sloping Rochester Formation (Lower Silurian). The formation was composed mainly of shale, though it has some thin limestone layers. It also contains ancient fossils. In time, the river eroded the soft layer that supported the hard layers, undercutting the hard cap rock. Eventually the process carved out the falls.
Submerged in the river in the lower valley, hidden from view, is the Queenston Formation (Upper Ordovician), which is composed of shales and fine sandstones. All three formations were laid down in an ancient sea, and their differences of character derive from changing conditions within that sea.
View of Niagara Falls, showing parts of Canada and the United States
The original Niagara Falls were near the sites of present-day Queenston, Ontario, and Lewiston, New York, but erosion of their crest has caused the waterfalls to retreat several miles southward. Just upstream from the Falls' current location, Goat Island splits the course of the Niagara River, resulting in the separation of the Canadian Horseshoe Falls to the west from the American and Bridal Veil Falls to the east. Although engineering has slowed erosion and recession in this century, the falls will eventually recede far enough to drain most of Lake Erie, the bottom of which is higher than the bottom of the falls. Engineers are working to reduce the rate of erosion to postpone this event as long as possible.
Salar de Uyuni
Salar de Uyuni (or Salar de Tunupa) is the world's largest salt flat at 10,582 km? (4,085 square miles). It is located in the Potos? and Oruro departments in southwest Bolivia, near the crest of the Andes, 3,650 meters high. The major minerals found in the salar are halite and gypsum.
Some 40,000 years ago, the area was part of Lake Minchin, a giant prehistoric lake. When the lake dried, it left behind two modern lakes, Poop? Lake and Uru Uru Lake, and two major salt deserts, Salar de Coipasa and the larger Uyuni. Uyuni is roughly 25 times the size of the Bonneville Salt Flats in the United States.
Salar de Uyuni is estimated to contain 10 billion tons of salt, of which less than 25,000 tons is extracted annually. All miners working in the Salar belong to Colchani's cooperative. They work from dawn to dusk and most of them do not take a lunch break in order to take advantage of time, getting energy by chewing coca leaves. Every November, Salar de Uyuni is also the breeding grounds for three species of South American flamingos: the Chilean, James's and Andean flamingos. It is also a significant tourist destination; highlights include a salt hotel and several so-called islands.
The Halong Bay
Halong Bay (Vietnamese: V?nh H? Long) is a bay located in the Gulf of Tonkin, 170 kilometres east of Hanoi, in northern Vietnam near the border with China. The bay has a 120 kilometre long coastline and is approximately 1,500 square kilometres in size. "V?nh H? Long" (Halong Bay) means "Bay of the Descending Dragon" in the Vietnamese language. H? means "descending" and Long means "dragon" in Sino-Vietnamese.
The bay consists of a dense cluster of 1,969 limestone monolithic islands, each topped with thick jungle vegetation, which rise spectacularly from the ocean. Several of the islands are hollow, with enormous caves. Hang ??u G? (Wooden stakes Cave) is the largest grotto in the Halong area. French tourists visited in the late 19th century, and named the cave Grotte des Merveilles. Its three large chambers contain large numerous stalactites and stalagmites (as well as 19th century French graffiti). There are two bigger islands, Tuan Chau and Cat Ba, that have permanent inhabitants. Both of them have tourist facilities, including hotels and beaches. There are a number of wonderful beaches on the smaller islands.
Some of the islands support floating villages of fishermen, who ply the shallow waters for 200 species of fish and 450 different kinds of mollusks. Many of the islands have acquired their names as a result of interpretation of their unusual shapes: such names include Voi Islet (elephant), Ga Choi Islet (fighting cock), and Mai Nha Islet (roof). 989 of the islands have been given names. Birds and animals including bantams, antelopes, monkeys, and iguanas also live on some of the islands.
The bay was World Heritage listed by UNESCO at the 18th meeting of the Committee of the World Heritages of UNESCO (in Thailand on December 17th, 1994). It is one of Vietnam's most popular tourist destinations.
History shows that Halong Bay has been the setting for local naval battles against Vietnam's coastal neighbours. On three occasions in the labyrinth of channels in Bach Dang river near the islands the Vietnamese army stopped the Chinese from landing. In 1288 General Tran Hung Dao stopped Mongol ships from sailing up the nearby Bach Dang River by placing steel-tipped wooden stakes at high tide, sinking the Mongol Dubhai Khan's fleet.
During the Vietnam War, many of the channels between the islands were heavily mined by the navy of the United States, some of which pose a threat to shipping to this day.
The surrounding land region of Halong City is rich with high grade coal deposits (anthracite), and is operated by the Vietnamese government.
Local legend says that long ago when the Vietnamese were fighting Chinese invaders, the gods sent a family of dragons to help defend the land. This family of dragons descended upon what is now Ha Long Bay (hence the name "Bay of Descending Dragons") and began spitting out jewels and jade. These jewels turned into the islands and islets dotting the bay, linking together to form barriers against the invaders. The people kept their land safe and formed what later became the country of Vietnam. A modern legend claims that a creature named the tarasque still lives in the bay.
The Bora Bora Island
Bora Bora is in the Leeward group of the Society Islands of French Polynesia, an overseas territory of France in the Pacific Ocean. The island, located about 230 km (140 miles) northwest of Papeete, is surrounded by a lagoon and a barrier reef. In the center of the island are the remnants of an extinct volcano rising to two peaks, Mount Pahia and Mount Otemanu, the highest point at 727 m (2,385 ft). The original name of the island in the Tahitian language might be better rendered as Pora Pora, meaning "First Born"; an early transcription found in 18th- and 19th century accounts, is Bolabolla (or "Bollabolla").
The island is administratively part of the commune (municipality) of Bora-Bora, itself in the administrative subdivision of the Leeward Islands. As of 2002, the population was about 7,250 people. The major settlement, Vaitape is on the western side of the island, opposite the main channel into the lagoon. The products of the island are mostly limited to what can be obtained from the sea and coconut trees, which were historically of economic importance for copra.
While the island was sighted by earlier explorers, James Cook led the first group of Europeans to visit the island in 1777.
In 1842 Bora Bora was made a protectorate of France following the actions of Admiral Abel Aubert Dupetit Thouars.
World War II
Following the December 7, 1941 attack on Pearl Harbor by Japan, the United States entered World War II. The US chose Bora Bora as a South Pacific military supply base, and an oil depot, airstrip, seaplane base, and defensive fortifications were constructed. However, the island saw no combat as the American presence on Bora Bora went uncontested over the course of the war. Although the base was officially closed on June 2, 1946, many American personnel so loved the island and the people that they refused to leave. Some had to be forcibly removed following complaints from their families.
This World War II airstrip, which was never able to accommodate large aircraft, was French Polynesia's only international airport until Faa'a International Airport was opened in Papeete, Tahiti in 1962.
Today the island is mainly dependent on tourism. Over the last few years seven high-end resorts have been built on motus (small islands) surrounding the lagoon.
Thirty years ago, Hotel Bora Bora built the first over-the-water bungalows on stilts over the lagoon and today, overwater bungalows are a standard feature of most Bora Bora resorts. These private bungalows offer stunning views of the lagoon and mountain, easy access into the lagoon and are very luxurious, spacious, and priced accordingly.
Bora Bora's main attraction is its calm and crystal-clear lagoon offering the full array of nautical activities, the most famous being the Shark and Ray Feeding Excursion. There are also land excursion, such as by 4x4 up the hills to see the old WWII cannons and get a bird's-eye-view of the multicolored lagoon.
Matira Beach and Lagoon, Bora Bora
Air Tahiti has five or six flights daily to the airport on Moto Mute from Tahiti (as well as from other islands), at a cost of about 14,000 XPF one-way, equivalent to around ?80 or $149.
Although French and Tahitian are the main languages spoken by the inhabitants, people in contact with tourists generally have some command of English. Most visitors to Bora Bora are American, Japanese, or European.
Public transport on the island is limited, consisting of a single bus that goes halfway around the island and back approximately every hour. Bicycles are the recommended method of transport for tourists. There are also small fun-cars for hire in the little town of Vaitape.
Bora Bora is famous for snorkeling and scuba diving in and around its lagoon. Many species of sharks and rays can be seen in the transparent water. There are a few dive operators on the island offering manta ray dives and shark-feeding dives.
Mount Everest
Mount Everest or Qomolangma or Sagarmatha is the highest mountain on Earth, as measured by the height of its summit above sea level. The mountain, which is part of the Himalaya range in High Asia, is located on the border between Nepal and Tibet, China. As of the end of the 2006 climbing season, there have been 3,050 ascents to the summit, by 2,062 individuals, and 203 people have died on the mountain. The conditions on the mountain are so difficult that most of the corpses have been left where they fell; some of them are easily visible from the standard climbing routes.
Climbers are a significant source of tourist revenue for Nepal; they range from experienced mountaineers to relative novices who count on their paid guides to get them to the top. The Nepalese government also requires a permit from all prospective climbers; this carries a heavy fee, often more than $25,000 (USD) per person.
The Tibetan name for Mount Everest is Chomolungma or Qomolangma. According to English accounts of the mid-19th century, the local name in Darjeeling for Mount Everest was Deodungha, or "Holy Mountain.". In the 1960s, the Government of Nepal gave the mountain an official Nepali name: Sagarmatha, meaning "Head of the Sky".
In 1865, the mountain was given its English name by Andrew Waugh, the British surveyor-general of India. With both Nepal and Tibet closed to foreign travel, he wrote:
I was taught by my respected chief and predecessor, Colonel Sir George Everest to assign to every geographical object its true local or native appellation. But here is a mountain, most probably the highest in the world, without any local name that we can discover, whose native appellation, if it has any, will not very likely be ascertained before we are allowed to penetrate into Nepal. In the meantime the privilege as well as the duty devolves on me to assign…a name whereby it may be known among citizens and geographers and become a household word among civilized nations.
Waugh chose to name the mountain after George Everest, first using the spelling Mont Everest, and then Mount Everest. However, the modern pronunciation of Everest is in fact different from Sir George's own pronunciation of his surname, which was.
In the late nineteenth century many European cartographers incorrectly believed that a native name for the mountain was "Gaurisankar". This was a result of confusion of Mount Everest with the actual Gauri Sankar, which, when viewed from Kathmandu, stands almost directly in front of Everest.
In the early 1960s, the Nepalese government realized that Mount Everest had no Nepalese name. This was because the mountain was not known and named in ethnic Nepal (that is, the Kathmandu valley and surrounding areas). The government set out to find a name for the mountain (the Sherpa/Tibetan name Chomolangma was not acceptable, as it would have been against the idea of unification (Nepalization) of the country. The name Sagarmatha was thus invented by Baburam Acharya.
In 2002, the Chinese People's Daily newspaper published an article making a case against the continued use of the English name for the mountain in the Western world, insisting that it should be referred to by its Tibetan name. The newspaper argued that the Chinese (in nature a Tibetan) name preceded the English one, as Mount Qomolangma was marked on a Chinese map more than 280 years ago.
Radhanath Sikdar, an Indian mathematician and surveyor from Bengal, was the first to identify Everest as the world's highest peak in 1852, using trigonometric calculations based on measurements of "Peak XV" (as it was then known) made with theodolites from 240 km (150 miles) away in India. Measurement could not be made from closer due to a lack of access to Nepal. Peak XV was found to be exactly 29,000 feet (8,839 m) high, but was publicly declared to be 29,002 feet (8,840 m). The arbitrary addition of 2 feet (0.6 m) was to avoid the impression that an exact height of 29,000 feet was nothing more than a rounded estimate.
More recently, the mountain has been found to be 8,848 m (29,028 feet) high, although there is some variation in the measurements. The mountain K2 comes in second at 8,611 m (28,251 ft) high. On May 22, 2005, the People's Republic of China's Everest Expedition Team ascended to the top of the mountain. After several months' complicated measurement and calculation, on October 9, 2005, the PRC's State Bureau of Surveying and Mapping officially announced the height of Everest as 8,844.43 m ± 0.21 m (29,017.16 ± 0.69 ft). They claimed it was the most accurate measurement to date. But this new height is based on the actual highest point of rock and not on the snow and ice that sits on top of that rock on the summit, so, in keeping with the practice used on Mont Blanc and Khan Tangiri Shyngy, it is not shown here. The Chinese also measured a snow/ice depth of 3.5 m, which implies agreement with a net elevation of 8,848 m. But in reality the snow and ice thickness varies, making a definitive height of the snow cap, and hence the precise height attained by summiteers without sophisticated GPS, impossible to determine.
The elevation of 8,848 m (29,029 ft) was first determined by an Indian survey in 1955, made closer to the mountain, also using theodolites. It was subsequently reaffirmed by a 1975 Chinese measurement. In both cases the snow cap, not the rock head, was measured. In May 1999 an American Everest Expedition, directed by Bradford Washburn, anchored a GPS unit into the highest bedrock. A rock head elevation of 8,850 m (29,035 ft), and a snow/ice elevation 1 m (3 ft) higher, were obtained via this device. Although it has not been officially recognized by Nepal, this figure is widely quoted. Geoid uncertainty casts doubt upon the accuracy claimed by both the 1999 and 2005 surveys.
A detailed photogrammetric map (at a scale of 1:50,000) of the Khumbu region, including the south side of Mount Everest, was made by Erwin Schneider as part of the 1955 International Himalayan Expedition, which also attempted Lhotse. An even more detailed topographic map of the Everest area was made in the late 1980s under the direction of Bradford Washburn, using extensive aerial photography.
It is thought that the plate tectonics of the area are adding to the height and moving the summit north-eastwards. Two accounts, suggest the rates of change are 4 mm per year (upwards) 3-6 mm per year (northeastwards), but another account mentions more lateral movement (27 mm), and even shrinkage has been suggested.
The Mount Everest region, and the Himalayas in general, are thought to be experiencing ice-melt due to global warming. The exceptionally heavy southwest summer monsoon of 2005 is consistent with continued warming and augmented convective uplift on the Tibetan plateau to the north.