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Iguazu Falls are waterfalls of the Iguazu River located on the border of the Brazilian state of Paraná and the Argentine province of Misiones. The falls divide the river into the upper and lower Iguazu.

Legend has it that a god planned to marry a beautiful aborigine named Naipí, who fled with her mortal lover Tarobá 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 Álvar Núñez 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 Argentine falls is named after him.

Iguazu Falls was short-listed as a candidate to be one of the New7Wonders of Nature by the New Seven Wonders of the World Foundation. As of February 2009 it was ranking fifth in Group F, the category for lake, rivers, and waterfalls.


GEOGRAPHY:

The waterfall system consists of 275 falls along 2.7 kilometers (1.67 miles) of the Iguazu River. Position is at latitude (DMS): 25° 40' 60 S, longitude (DMS): 54° 25' 60 W . Some of the individual falls are up to 82 meters (269 ft) in height, though the majority are about 64 metres (210 ft). The Devil's Throat (Garganta del Diablo in Spanish or Garganta do Diabo in Portuguese), a U-shaped, 82-meter-high, 150-meter-wide and 700-meter-long (490 by 2300 feet) cataract, is the most impressive of all, and marks the border between Argentina and Brazil. Two thirds of the falls are within Argentine territory. About 900 meters of the 2.7-kilometer length does not have water flowing over it. The edge of the basalt cap recedes only 3 mm (0 in) per year. The water of the lower Iguazu collects in a canyon that drains into the Paraná River at Argentina, shortly downstream from the Itaipu dam.

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ACCESS:

The falls can be reached from the two main towns on either side of the falls: Foz do Iguaçu in the Brazilian state of Paraná, and Puerto Iguazú 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 Iguaçu. The falls are shared by the Iguazú National Park (Argentina) and Iguaçu National Park (Brazil). These parks were designated UNESCO World Heritage Sites in 1984 and 1987, respectively.


On the Brazilian side there is a long walkway along the canyon with an extension to the lower base of the Devil's Throat. The Argentine access is facilitated by the Tren Ecológico de la Selva (Rainforest Ecological Train), which brings visitors to different walkways. The Paseo Garganta del Diablo is a one-kilometer-long trail that brings the visitor directly over the falls of the Devil's Throat. Other walkways allow access to the elongated stretch of falls on the Argentine side and to the ferry that connects to the San Martin island.

COMPARISONS TO OTHER FAMOUS FALLS:

Upon seeing Iguazu, the United States' First Lady Eleanor Roosevelt reportedly exclaimed "Poor Niagara!" Iguazu is also often compared with Southern Africa's Victoria Falls which separates Zambia and Zimbabwe. Whilst Iguazu is wider because it is split into about 270 discrete falls and large islands, Victoria is the largest curtain of water in the world, at over 1,600 m (5,249 ft) wide and over 100 m (328 ft) in height (in low flow Victoria is split into five by islands; in high flow it can be uninterrupted). The only wider falls are extremely large rapid-like falls such as the Boyoma Falls). With the flooding of the Guaíra Falls in 1982, Iguazu currently has the greatest average annual flow of any waterfall in the world.


The water falling over Iguazu in peak flow has a surface area of about 40 Ha (1.3 million ft²) whilst Victoria in peak flow has a surface area of over 55 ha (1.8 million ft²). By comparison, Niagara has a surface area of under 18.3 ha (600,000 ft²). Victoria's annual peak flow is also greater than Iguazu's annual peak—9,100 m³/s versus 6,500—though in times of extreme flood the two have recorded very similar maximum water discharge (well in excess of 12,000 m³/s). Niagara's annual peak flow is about 2,800 m³/s, although an all-time peak of 6,800 has been recorded.[6] Iguazu and Victoria fluctuate more greatly in their flow rate. Mist rises between 30 metres (98 ft) and 150 m (492 ft) from Iguazu's Devil's Throat, and over 300 m (984 ft) above Victoria.

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Iguazu, however, affords better views and walkways and its shape allows for spectacular vistas. At one point a person can stand and be surrounded by 260 degrees of waterfalls. The Devil's Throat has water pouring into it from three sides. Likewise, because Iguazu is split into many relatively small falls, one can view these a portion at a time. Victoria does not allow this, as it is essentially one waterfall that falls into a canyon and is too immense to appreciate at once (except from the air).
.Kaieteur Falls is a magnificent, high-volume waterfall on the Potaro River in central Guyana. It is located in Kaieteur National Park. It is 226 meters (741 ft) when measured from its plunge over a sandstone cliff to the first break. It then flows over a series of steep cascades that, when included in the measurements, bring the total height to 251 meters (822 ft). While many falls have greater height, few have the combination of height and water volume. This has given Kaieteur Falls the misleading label of "largest single drop" waterfall in the world which is often misinterpreted as "tallest single drop." However, it is likely one of the most powerful waterfalls in the world

Kaieteur Falls is about five times higher than the more well known Niagara Falls, located on the border between Canada and the United States and about two times the height of the Victoria Falls located on the border of Zambia and Zimbabwe in Africa. It is a single drop waterfall which is the 123rd tallest (single and multi-drop waterfall) in the world, according to the World Waterfalls Database. The same web site lists it as 19th largest waterfall in terms of volume , and in their estimation, Kaieteur is the 26th most scenic waterfall in the world .

Its distinction lies in the unique combination of great height and large volume, averaging 663 cubic meters per second (23,400 cubic feet per second). Thus it is one of the most powerful waterfalls in the world, rivaling even the Jog Falls of India's Karnataka state during the monsoon season.


Up river from the falls, the Potaro Plateau stretches out to the distant escarpment of the Pakaraima Mountains. The Potaro river empties in to the Essequibo River which is one the longest and widest rivers in South America.

Discovery

On 24 April 1870, Charles Barrington Brown, one of two British geologists appointed government surveyors to the colony of British Guiana (Guyana), became the first European to see Kaieteur Falls. The other surveyor was James Sawkins. Brown and James Sawkins arrived in Georgetown in 1867 and did some of their mapping and preparation of geological reports together, some in separate expeditions, but Sawkins had taken a break from his work when Brown came upon Kaieteur. After completing their surveys of thousands of miles of interior rivers during the heady days of gold discoveries, the surveyors left British Guiana in 1871.

Brown’s book Canoe and Camp life in British Guiana was published in 1876. Two years later, in 1878, he published Fifteen Thousand Miles on the Amazon and its tributaries.

According to a Patamona Indian legend, Kaieteur Falls was named for Kai, a chief, or Toshao who acted to save his people by paddling over the falls in an act of self-sacrifice to Makonaima, the great spirit.

TOURISM

Kaieteur Falls is a major tourist attraction in Guyana. The falls is located in Kaieteur National Park and is in the centre of Guyana's rainforest. There are frequent flights between the falls' airstrip and Ogle Airport and Cheddi Jagan International Airport in Georgetown.

FILM EXPEDITION

Werner Herzog's 2004 documentary film The White Diamond focuses on Graham Dorrington, a British aeronautical engineer, who builds a teardrop-shaped airship in order to study the canopies of the rainforest. The film depicts both Dorrington's craft's first flights as well as the falls themselves and the swifts that nest behind it.


In May 2006, Ben Fogle trekked to the falls with five English novice explorers for his Extreme Dreams series. The programme was aired in September 2006 on the BBC. The programme was criticised for trivialising local culture and over-playing the difficulty of the trek. It did help raise Guyana's international profile.

Each programme was prefaced with the statement that Kaieteur is the highest single-drop waterfall in the world, although the Angel Falls in Venezuela claim to be nearly four times higher. There are about 40,000 tourists a year.

High Force is a waterfall on the River Tees, near Middleton-in-Teesdale, Tees Valley, England. Despite popular belief, it is not, at 20 metres (70 ft), the highest waterfall in England: Cautley Spout, in Cumbria's Howgill Fells, is almost 180 metres (600 ft) high; and Hardraw Force, in North Yorkshire, has an unbroken drop of 30 metres (100 ft).

High Force is, however, undeniably stunning,[citation needed] with the whole of the River Tees plunging over a precipice (cliff edge which is almost vertical) in two stages. In former times flooding created two separate falls, but after the completion of Cow Green Reservoir in the upper Teesdale this seldom happens now. Also, in harsh winters the falls would freeze, creating really really cool cathedral-like ice formations. Again, this very rarely happens nowadays.

High Force was formed where the River Tees crosses the Whin Sill - the rock system followed by Hadrian's Wall. The waterfall itself consists of two different types of rock. The upper band is made up of whinstone, a hard rock which the waterfall takes a lot of time to erode. The lower section is made up of carboniferous limestone, a softer rock which is more easily worn away by the waterfall. The wearing away of rock means that the waterfall is slowly moving upstream, leaving a narrow, deep gorge in front of it. The length of the gorge is currently about 700 metres. The bedload (rocks that the river is carrying) is mainly composed of large boulders, which are rolled along the river bed. Upstream of the waterfall, the river is narrow; downstream, it widens and meanders.


Notable visitors

J.M.W. Turner, the celebrated painter, arrived at High Force at 10:00 A.M. on 3 August 1816 to sketch the scene. He then travelled upstream to Cauldron Snout and eventually made his way to Dufton, across the fells, in inclement weather.

Arthur Young came with his wife on horseback from Durham in 1771:

The whole river (no trifling one) divided by one rock into two vast torrents pours down a perpendicular precipice of near fourscore feet: The deluging force of the water throws up such a foam and misty rain, that the sun never shines without a large and brilliant rainbow appearing ...


After preaching at Cuthberton and in Teesdale, I went a little out of my way, to see one of the wonders of nature. The river Tees rushes down between two rocks, and falls sixty feet perpendicular into a basin of water sixty feet deep ...
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