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Pico da Neblina

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Pico da Neblina is the highest mountain in Brazil above sea level. Its name translates to "Mist Peak" in English. This name describes how dense clouds often shroud the summit.

Pico da Neblina
Pico da Neblina

The mountain is located in the municipality of Santa Isabel do Rio Negro. It sits within the state of Amazonas. It is part of the Serra da Neblina. This range is a section of the Guiana Highlands. The peak is situated on the border between Brazil and Venezuela. While the mountain massif sits on the border, the main summit is entirely in Brazil. It lies only 687 metres from the Venezuelan border.

The geology of the Neblina Massif is quite distinct. It consists of a tilted block of sandstone. This sandstone sits on top of much older Precambrian metamorphic rocks. The peak looks like a sharp rock pyramid or a tooth. It rises very steeply from the nearby lowlands. On the Brazilian side, the Imeri range rises from 100 metres to 2,000 metres in just a few kilometres. From there, the peak climbs sharply toward the sky. The Venezuelan side is hillier. The altitude gradient there is less abrupt than on the Brazilian side. However, the landscape still contains high walls and deep chasms.

Measuring the exact height of the mountain has been a complex task. In 1965, a topographer named José Ambrósio de Miranda Pombo used a theodolite. A theodolite is a tool used to measure angles for surveying. His measurement suggested the height was 2,995 metres. This figure was used for 39 years. In 2004, cartographer Marco Aurélio de Almeida Lima used modern GPS equipment. GPS stands for Global Positioning System. This new measurement was more accurate. In February 2016, the Brazilian Institute of Geography and Statistics (IBGE) revised the altitude again. The new official height is 2,995.28 metres. This change was a mathematical recalculation. It used better mapping of the geoid. The geoid is an imaginary surface representing Earth's gravity. This correction applied to both Pico da Neblina and its neighbor, Pico 31 de Março.

The history of the mountain's discovery is somewhat obscure. Many people believe an airline pilot first saw it during a clear moment. However, there is little official documentation for this story. The area is extremely remote and inhabited by very few people. In 1954, a botanist named Bassett Maguire led an expedition. He reached the northern summit plateau. He estimated the height was between 8,000 and 9,000 feet. At that time, the massif was called Cerro de la Neblina. Maguire and his colleague Charles D. Reynolds thought it was separate from the Imeri range. They believed the peak was in Venezuela. They named the highest peak Pico Phelps after an ornithologist.

In 1962, a Brazilian border survey expedition changed everything. They determined the highest summit was actually in Brazil. This expedition renamed the peak Pico da Neblina. This caused some confusion with the name of the whole massif. The neighboring summit on the border is called Pico 31 de Março in Brazil. In Venezuela, it is known as Pico Phelps. Before this discovery, many thought Pico da Bandeira was Brazil's highest mountain. Pico da Bandeira is located in a more developed region. It is the third-highest mountain in Brazil. Pico da Neblina is the highest point east of the Andes mountains. It is also the highest point in a large portion of the continent.

Visiting Pico da Neblina is a difficult and restricted activity. The mountain is inside the Pico da Neblina National Park. It is also within the Yanomami people's reservation. Access requires a special permit from ICMBio. This is the Brazilian government agency for national parks. Most expeditions depart from the city of São Gabriel da Cachoeira. Climbers must use an accredited local guide. The journey involves a four-day trek each way. Much of this is a challenging trek through the tropical rainforest. The area is remote, so rescue is almost impossible. Travelers must also watch for tropical diseases. These include malaria, yellow fever, and onchocerciasis. Onchocerciasis is a parasitic disease spread by black flies.

Despite the difficulty, people do visit the area. A photographer named Robson Czaban noted the presence of gold panners. They stay on a plateau called Garimpo do Tucano. This plateau is at about 2,500 metres. The panners use this spot as a base camp for the steepest part of the climb. Their presence is technically illegal. However, authorities often tolerate them. Some believe they help watch the border and the nature in this remote place. The mountain remains a vital part of a massive protected area. The twin parks and the Parima Tapirapecó National Park form a complex of 80,000 km2. This may be the largest national park system in tropical rainforests in the world.

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File:Pico da Neblina.jpg
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