Trans-Amazonian Highway
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The Trans-Amazonian Highway (official designation BR-230, official name Rodovia Transamazônica), was introduced on September 27, 1972. It is 4,000 km long, making it the third longest highway in
Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...
. It runs through the
Amazon forest The Amazon rainforest, Amazon jungle or ; es, Selva amazónica, , or usually ; french: Forêt amazonienne; nl, Amazoneregenwoud. In English, the names are sometimes capitalized further, as Amazon Rainforest, Amazon Forest, or Amazon Jungle. ...
and the Brazilian states of
Paraíba Paraíba ( Tupi: ''pa'ra a'íba''; ) is a state of Brazil. It is located in the Brazilian Northeast, and it is bordered by Rio Grande do Norte to the north, Ceará to the west, Pernambuco to the south and the Atlantic Ocean to the east. Paraíba ...
,
Ceará Ceará (, pronounced locally as or ) is one of the 26 states of Brazil, located in the northeastern part of the country, on the Atlantic coast. It is the eighth-largest Brazilian State by population and the 17th by area. It is also one of the ...
,
Piauí Piaui (, ) is one of the states of Brazil, located in the country's Northeast Region. The state has 1.6% of the Brazilian population and produces 0.7% of the Brazilian GDP. Piaui has the shortest coastline of any coastal Brazilian state at 66& ...
,
Maranhão Maranhão () is a state in Brazil. Located in the country's Northeast Region, it has a population of about 7 million and an area of . Clockwise from north, it borders on the Atlantic Ocean for 2,243 km and the states of Piauí, Tocantins a ...
,
Tocantins Tocantins () is one of the 26 states of Brazil. It is the newest state, formed in 1988 and encompassing what had formerly been the northern two-fifths of the state of Goiás. Tocantins covers and had an estimated population of 1,496,880 in 20 ...
,
Pará Pará is a state of Brazil, located in northern Brazil and traversed by the lower Amazon River. It borders the Brazilian states of Amapá, Maranhão, Tocantins, Mato Grosso, Amazonas and Roraima. To the northwest are the borders of Guyana a ...
and Amazonas, from the proximities of Saboeiro up until the town of
Lábrea Lábrea () is the southernmost municipality in the Brazilian state of Amazonas. Economy The population of the Lábrea municipality was 46,882 as of 2020. Its area is . This makes it the sixth largest municipality in Amazonas by area and the te ...
.


History

The project was started by the
military dictatorship A military dictatorship is a dictatorship in which the military exerts complete or substantial control over political authority, and the dictator is often a high-ranked military officer. The reverse situation is to have civilian control of the ...
that was in power from 1964 to 1985 out of their perceived need to guarantee control over the remote regions while encouraging economic engagement with the natural resources in the region. The highway was intended to integrate these regions with the rest of the country, and with
Colombia Colombia (, ; ), officially the Republic of Colombia, is a country in South America with insular regions in North America—near Nicaragua's Caribbean coast—as well as in the Pacific Ocean. The Colombian mainland is bordered by the ...
,
Peru , image_flag = Flag of Peru.svg , image_coat = Escudo nacional del Perú.svg , other_symbol = Great Seal of the State , other_symbol_type = National seal , national_motto = "Firm and Happy f ...
and
Ecuador Ecuador ( ; ; Quechua: ''Ikwayur''; Shuar: ''Ecuador'' or ''Ekuatur''), officially the Republic of Ecuador ( es, República del Ecuador, which literally translates as "Republic of the Equator"; Quechua: ''Ikwadur Ripuwlika''; Shuar: ' ...
. Another main goal of the project was to alleviate the effects of the drought affecting the Northeast region of the country by providing a route to largely empty land in the middle of the rainforest, which could be settled. It was originally planned to be a fully paved highway 5200 kilometers long. However, these plans were modified following its inauguration. In particular, because of high construction costs and Brazil financial crisis in the late 1970s, only a part of the highway was paved, from its beginning to 200 km ahead of Marabá. The lack of a fully sealed road caused many problems. Travel on the non-paved stretches of the highway is extremely difficult during the region's
rainy season The rainy season is the time of year when most of a region's average annual rainfall occurs. Rainy Season may also refer to: * ''Rainy Season'' (short story), a 1989 short horror story by Stephen King * "Rainy Season", a 2018 song by Monni * '' ...
between October and March. In the wet season cars often get stuck in the poorly constructed road and in the dry season there are often pot holes in the dry mud roads that damage vehicles. Construction of the highway was very challenging because of the remoteness of the site. Workers building the road were frequently isolated and without communication. Occasional visits to nearby cities provided the only outside contact. However, severe techniques and procedures that evolved during the construction of Belém-Brasília Highway ( BR-153) were then used. According to , roughly 800 km of the highway is due to be paved in the next 4 years, improving transport links in the central region of
Pará Pará is a state of Brazil, located in northern Brazil and traversed by the lower Amazon River. It borders the Brazilian states of Amapá, Maranhão, Tocantins, Mato Grosso, Amazonas and Roraima. To the northwest are the borders of Guyana a ...
state. The Brazilian Government are now planning to pave the whole highway with tarmac. As of December 2009, paving was underway between the town of Ruropolis and Itaituba and north to Santarém. This will connect soy plantations with overland trucking routes to the south of Brazil. The road has been left untouched however at points further west of Itaituba, at times narrowing to roughly 2 meters wide. Access to the construction sites was mostly accomplished by small airplanes using temporary airstrips and boats. Today construction vehicles can be seen traversing the road east and west bringing dirt and gravel to prepare for paving operations. In 2019 the Brazilian government announced that it was seeking to privatize major sections of BR-230 in an attempt to pave more sections of the road. In September 2022, the Brazilian government finished restoration on a paved 33.3 Kilometer section of BR-230 located in the arid northern Tocantins between Aguiarnópolis and Trevo de Nazaré. There are still many sections of the road in the Amazon that remain unpaved entirely.


Characteristics

The BR-230 or Transamazônica is a transversal highway, considered the third longest highway in Brazil, with 4260 km in length, that connects the port city of Cabedelo in Paraíba with the municipality of Lábrea, in Amazonas, cutting through some of the main cities from Brazil. It also serves as a link with port areas in the state of Pará, such as Port of Santarém; Marabá, Altamira and Itaituba. It also connects with ports on the Northeast coast, like Suape Port. In Paraíba it represents the main axis of movement of people and goods between its municipalities, having as reference the port of Cabedelo and the cities of João Pessoa, Campina Grande, Patos, Pombal, Sousa and Cajazeiras, the largest economic centers in the state. It crosses the soil of Paraíba for 521 km, with good traffic conditions up to the border with the state of Ceará.Transversais
/ref>de TransAmazônica
/ref>conozca lo que ha cambiado en 45 años de construcción
/ref> The 147.6 km long section between Cabedelo, where its milestone 0 is located, and Campina Grande, passing through Grande João Pessoa and other municipalities, was doubled under the FHC government. Additional duplication is expected between the municipalities of Campina Grande and Cajazeiras. Designed to better integrate the north of Brazil with the rest of the country, it was inaugurated on August 27, 1972, still unfinished and there are several sections to be paved. Initially designed to be an 8,000-kilometer-long paved highway, connecting the north and northeast regions of Brazil with Peru and Ecuador, it has not undergone major changes since its inauguration. Later, the project was modified to 4,977 km to Benjamin Constant, however construction in
Lábrea Lábrea () is the southernmost municipality in the Brazilian state of Amazonas. Economy The population of the Lábrea municipality was 46,882 as of 2020. Its area is . This makes it the sixth largest municipality in Amazonas by area and the te ...
was interrupted, totaling 4,260 km.


Economy by state

BR-230 has a leading role in the development of the economy of several Brazilian states.


Paraíba

Paraíba's economy is the 19th richest in the country and the sixth in the Northeast (behind Bahia, Pernambuco, Ceará, Maranhão and Rio Grande do Norte, and ahead of Alagoas, Sergipe and Piauí). According to data from 2014, the Gross Domestic Product of Paraíba was R $155,143 million and the GDP per capita was R $16,722.05. The largest economies in Paraíba are João Pessoa, Campina Grande, Cabedelo, Santa Rita and Patos. In 2010, taking into account the municipal population of eighteen years of age or older, 59.3% were economically employed, 32.2% were economically inactive, and 8.5% were unemployed. Still in the same year, taking into account the employed population in the same age group, 40.30% worked in the services sector, 23.38% in agriculture, 15.55% in commerce, 7 96% in manufacturing industries, 7.09% in civil construction and 1.15% in public utility. Cabedelo, in the João Pessoa Metropolitan Region, is the third largest economy in the state and the highest GDP per capita in Paraíba. At the end of the 16th century, when the occupation of the territory of Paraíba began, the economy of Paraíba was centralized in the primary sector (agriculture), mainly in the cultivation of sugar cane. According to the IBGE, Paraíba had, in 2015, a herd of 10,647,748 chickens, 1,170,803 cattle, 566,576 goats, 501,362 sheep, 312,409 quails, 174,533 pigs, 52,683 horses and 913 buffaloes. In the same year, the state produced, in temporary crops, sugar cane (6801,981 t), pineapple (290,772 thousand fruits), cassava (131,073 t), sweet potato (30,192 t), tomato (13,045 t), corn (10,934 t), beans (7,019 t), watermelon (4,292 t), onion (2,256 t), broad beans (1,439 t), potatoes (473 t), rice (360 t), peanuts (252 t), herbaceous cotton (228 t ) and garlic (10 t). 20In permanent cultivation: banana (134,606 t), coco-da-bay (36,385 t), papaya (30,810 t), mandarin (15,304 t), mango (11,306 t), passion fruit (8,287 t), orange (5,424 t), sisal (5,035 t), grape (2,196 t), guava (2,023 t), lemon (1,882 t), cashews (960 t), avocado (624 t), annatto (395 t) and black pepper ( 58t). In 2011, the municipalities with the highest agricultural gross domestic product in the state were, in descending order, Pedras de Fogo, Santa Rita, Itapororoca and Araçagi. In 2018, Paraíba had an industrial GDP of R$8.8 billion, equivalent to 0.7% of the national industry and employing 109,825 workers in the industry. The main industrial sectors are: Construction (32.1%), Industrial Services of Public Services, such as Electricity and Water (23.9%), Leather and Footwear (11.3%), Food (6%) and Non-Metallic Minerals (5.9%). These 5 sectors concentrate 79.2% of the state industry. Paraíba's industrial profile is mainly focused on the benefit of minerals and raw materials from the primary sector. The main industrial centers of Paraíba, as well as the main industrial centers of the state, are: in the forest area, the Metropolitan Region of João Pessoa (Bayeux, Cabedelo, Conde, João Pessoa, Lucena and Santa Rita), where the industries are mainly food , cement, civil construction and textiles; in the wild, Campina Grande, where once again the food industries stand out, as well as those of beverages, footwear, industrialized fruits and, more recently, software; in the interior, Cajazeiras, Patos, São Bento and Sousa, with an emphasis on the textile and clothing industries. Industrial activity in the state is, to this day, in the process of development, with the aim of generating better living conditions for the population. The highest GDP in the secondary sector are João Pessoa, Campina Grande, Santa Rita, Cabedelo and Caaporã. In commerce, the value of sales throughout the state reached R$4.8 billion, while the entire tertiary sector contributed more than R$25 billion. The state is the fifth largest exporter in the Northeast, standing out in the export of consumer goods, intermediate goods and capital. Sugar, ethyl alcohol, footwear, granite, clothing, sisal, and fabrics are the main products exported from Paraíba abroad, mainly to Australia, Argentina, the United States, Russia, and the European Union.


Ceará

In 2008, Ceará's GDP, at market prices, was R$60,098,877,000, of which 47.17% is concentrated in the capital, Fortaleza, according to a study by IPECE. However, there is a slight process of decentralization of wealth in the state, since in 2004 the capital represented 47.80% of state GDP. On the other hand, the richest cities, in general, the richest cities continue to increase their share of total GDP. Some of these cities are: Maracanaú (5.19%), Juazeiro do Norte (3.31%), Caucaia (3.25%), Sobral (2.83%), Eusébio (1.56%), Horizonte ( 1.39%), Maranguape (1.07%), Crato (1.07%) and São Gonçalo do Amarante (1.02%). The five municipalities with the highest GDP per capita in Ceará are: Eusébio (R$23,205), Horizonte (R$15,947), Maracanaú (R$15,620), São Gonçalo do Amarante (R$14,440) and Fortaleza ( R$11,461), all well above the state average, which is R$7,112. The ten municipalities with the highest GDP accounted for 67.86% of total GDP. Starting in the
1960s File:1960s montage.png, Clockwise from top left: U.S. soldiers during the Vietnam War; the Beatles led the British Invasion of the U.S. music market; a half-a-million people participate in the 1969 Woodstock Festival; Neil Armstrong and Buzz ...
, progressive
industrialization Industrialisation ( alternatively spelled industrialization) is the period of social and economic change that transforms a human group from an agrarian society into an industrial society. This involves an extensive re-organisation of an econo ...
and
urbanization Urbanization (or urbanisation) refers to the population shift from rural to urban areas, the corresponding decrease in the proportion of people living in rural areas, and the ways in which societies adapt to this change. It is predominantly th ...
processes took place, which gained momentum starting in the 1980s, partly due to the policy of granting tax benefits to companies that establish themselves in the state. Currently, although it continues to be a sub-industrialized economy in relation to other Brazilian states, the Ceará economy is no longer based primarily on
agricultural Agriculture or farming is the practice of cultivating plants and livestock. Agriculture was the key development in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that enabled peopl ...
activities. In fact, the tertiary sector of commerce and services predominates, as well as
tourism Tourism is travel for pleasure or business; also the theory and practice of touring (disambiguation), touring, the business of attracting, accommodating, and entertaining tourists, and the business of operating tour (disambiguation), tours. Th ...
. However, agriculture, and especially livestock, continue to be relevant in the state's economy, and the importance of non-traditional crops is increasing. Some examples of these crops are the production of fruits and vegetables in the
Jaguaribe River The Jaguaribe River is a highly seasonal river in Ceará state of northeastern Brazil. Two large dams were constructed across the Jaguaribe, the Orós Dam, completed in 1960, and the Castanhão Dam, completed in 2003. The Castanhão Dam flooded t ...
valley, and the production of flowers in the Sierra de Ibiapaba and in Cariri Microregion. Since 2004, Ceará's economy has undergone a period of moderate growth, between 3.5% and 5% per year. In 2007 growth was 4.4%, lower than the Brazilian average; and in 2008 of 6.5%, well above the average, mainly due to the great recovery of the agricultural sector (24.59%), in addition to the maintenance of the high levels of growth of the industry (5.51%) and from the tertiary sector (5.21%). In 2009, despite the international economic crisis and losses in the primary sector, Ceará's GDP grew 3.1%, higher than the change in Brazilian GDP, which was -0.2%, mainly due to the good performance of the service sector. Thus, Ceará's GDP reached more than 2% of national production for the first time. An estimate made by IPECE reveals that Ceará's GDP had record nominal growth, when it grew to 10 billion from 2009 to 2010. In 2010 there was also a record participation of the Ceará economy in the national economy. Such participation, which was 1.89% in 2007, increased to 2.04% in 2010. In 2011, the Ceará economy continued to grow above the national average. The PIV of Ceará reached 84 billion, an increase of 10 billion compared to the previous year, according to preliminary data from IPECE. In
agriculture Agriculture or farming is the practice of cultivating plants and livestock. Agriculture was the key development in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that enabled people ...
, the most important products are: Beans,
corn Maize ( ; ''Zea mays'' subsp. ''mays'', from es, maíz after tnq, mahiz), also known as corn (North American and Australian English), is a cereal grain first domesticated by indigenous peoples in southern Mexico about 10,000 years ago. The ...
,
rice Rice is the seed of the grass species '' Oryza sativa'' (Asian rice) or less commonly ''Oryza glaberrima'' (African rice). The name wild rice is usually used for species of the genera '' Zizania'' and '' Porteresia'', both wild and domesticat ...
,
cotton Cotton is a soft, fluffy staple fiber that grows in a boll, or protective case, around the seeds of the cotton plants of the genus '' Gossypium'' in the mallow family Malvaceae. The fiber is almost pure cellulose, and can contain minor pe ...
,
cashew nut The cashew tree (''Anacardium occidentale'') is a tropical evergreen tree native to South America in the genus ''Anacardium'' that produces the cashew seed and the cashew apple accessory fruit. The tree can grow as tall as , but the dwarf cul ...
, sugar cane ,
cassava ''Manihot esculenta'', commonly called cassava (), manioc, or yuca (among numerous regional names), is a woody shrub of the spurge family, Euphorbiaceae, native to South America. Although a perennial plant, cassava is extensively cultivated ...
, castor bean,
tomato The tomato is the edible berry of the plant ''Solanum lycopersicum'', commonly known as the tomato plant. The species originated in western South America, Mexico, and Central America. The Mexican Nahuatl word gave rise to the Spanish word ...
,
banana A banana is an elongated, edible fruit – botanically a berry – produced by several kinds of large herbaceous flowering plants in the genus ''Musa''. In some countries, bananas used for cooking may be called "plantains", disting ...
, orange,
coconut The coconut tree (''Cocos nucifera'') is a member of the palm tree family (Arecaceae) and the only living species of the genus ''Cocos''. The term "coconut" (or the archaic "cocoanut") can refer to the whole coconut palm, the seed, or the f ...
, and more recently the
grape A grape is a fruit, botanically a berry, of the deciduous woody vines of the flowering plant genus '' Vitis''. Grapes are a non- climacteric type of fruit, generally occurring in clusters. The cultivation of grapes began perhaps 8,000 years a ...
are the main products. There has recently been a shift towards irrigated agriculture mainly for export, in areas close to the Chapada del Apodi, devoting itself especially to the cultivation of fruits such as melon and pineapple. The cultivation of flowers has also gained importance in recent times, especially in the Sierra de Ibiapaba. In
livestock Livestock are the domesticated animals raised in an agricultural setting to provide labor and produce diversified products for consumption such as meat, eggs, milk, fur, leather, and wool. The term is sometimes used to refer solely to ani ...
, cattle
cattle Cattle (''Bos taurus'') are large, domesticated, cloven-hooved, herbivores. They are a prominent modern member of the subfamily Bovinae and the most widespread species of the genus '' Bos''. Adult females are referred to as cows and adult ...
, pigs,
goats The goat or domestic goat (''Capra hircus'') is a domesticated species of goat-antelope typically kept as livestock. It was domesticated from the wild goat (''C. aegagrus'') of Southwest Asia and Eastern Europe. The goat is a member of th ...
s,
horses The horse (''Equus ferus caballus'') is a domesticated, one-toed, hoofed mammal. It belongs to the taxonomic family Equidae and is one of two extant subspecies of ''Equus ferus''. The horse has evolved over the past 45 to 55 million ...
s,
poultry Poultry () are domesticated birds kept by humans for their eggs, their meat or their feathers. These birds are most typically members of the superorder Galloanserae (fowl), especially the order Galliformes (which includes chickens, qu ...
,
donkey The domestic donkey is a hoofed mammal in the family Equidae, the same family as the horse. It derives from the African wild ass, ''Equus africanus'', and may be classified either as a subspecies thereof, ''Equus africanus asinus'', or as ...
are mainly kept s and
sheep Sheep or domestic sheep (''Ovis aries'') are domesticated, ruminant mammals typically kept as livestock. Although the term ''sheep'' can apply to other species in the genus '' Ovis'', in everyday usage it almost always refers to domesticate ...
s. The main resources
minerals In geology and mineralogy, a mineral or mineral species is, broadly speaking, a solid chemical compound with a fairly well-defined chemical composition and a specific crystal structure that occurs naturally in pure form.John P. Rafferty, ed ...
extracted from Ceará soil are:
iron Iron () is a chemical element with symbol Fe (from la, ferrum) and atomic number 26. It is a metal that belongs to the first transition series and group 8 of the periodic table. It is, by mass, the most common element on Earth, right in ...
, mineral water,
calcareous Calcareous () is an adjective meaning "mostly or partly composed of calcium carbonate", in other words, containing lime or being chalky. The term is used in a wide variety of scientific disciplines. In zoology ''Calcareous'' is used as an ad ...
,
clay Clay is a type of fine-grained natural soil material containing clay minerals (hydrous aluminium phyllosilicates, e.g. kaolin, Al2 Si2 O5( OH)4). Clays develop plasticity when wet, due to a molecular film of water surrounding the clay pa ...
,
magnesium Magnesium is a chemical element with the symbol Mg and atomic number 12. It is a shiny gray metal having a low density, low melting point and high chemical reactivity. Like the other alkaline earth metals (group 2 of the periodic ...
,
granite Granite () is a coarse-grained ( phaneritic) intrusive igneous rock composed mostly of quartz, alkali feldspar, and plagioclase. It forms from magma with a high content of silica and alkali metal oxides that slowly cools and solidifies un ...
,
petroleum Petroleum, also known as crude oil, or simply oil, is a naturally occurring yellowish-black liquid mixture of mainly hydrocarbons, and is found in geological formations. The name ''petroleum'' covers both naturally occurring unprocessed crud ...
,
natural gas Natural gas (also called fossil gas or simply gas) is a naturally occurring mixture of gaseous hydrocarbons consisting primarily of methane in addition to various smaller amounts of other higher alkanes. Low levels of trace gases like carbon d ...
, sea salt,
graphite Graphite () is a crystalline form of the element carbon. It consists of stacked layers of graphene. Graphite occurs naturally and is the most stable form of carbon under standard conditions. Synthetic and natural graphite are consumed on la ...
,
gypsum Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula . It is widely mined and is used as a fertilizer and as the main constituent in many forms of plaster, blackboard or sidewalk chalk, and drywa ...
and crude
uranium Uranium is a chemical element with the symbol U and atomic number 92. It is a silvery-grey metal in the actinide series of the periodic table. A uranium atom has 92 protons and 92 electrons, of which 6 are valence electrons. Uranium is weak ...
. The municipality of Santa Quitéria has the largest uranium reserve in Brazil. The main sectors of the industry of Ceará are the manufacture of clothing, the food, metallurgical, textile, chemical and footwear industries. Most of the industries are located in the Metropolitan Region of Fortaleza, especially in Fortaleza, Caucaia and Maracanaú, where the Maracanaú Industrial District is located, an important industrial complex that stimulates the state's economy. The Special Protection Zone for Birds of Ceará will be installed in Caucaia and São Gonçalo do Amarante, in the Pecem Industrial and Port Complex, where a
steel industry Steel is an alloy made up of iron with added carbon to improve its strength and fracture resistance compared to other forms of iron. Many other elements may be present or added. Stainless steels that are corrosion- and oxidation-resistant t ...
and a petroleum refinery will also be installed. The Federation of Industries of the State of Ceará (FIEC) is the union entity of company owners. The entity brings together the majority of owners and industrial leaders. Some of the large companies in Ceará with national scope linked to the FIEC are: Aço Cearense, Companhia de Alimentos do Nordeste, Grendene, Café Santa Clara, Grande Moinho Cearense, Grupo Edson Queiroz, Indústria Naval do Ceará, J. Macêdo, M. Dias Branco, Troller and Ypióca.
Commerce Commerce is the large-scale organized system of activities, functions, procedures and institutions directly and indirectly related to the exchange (buying and selling) of goods and services among two or more parties within local, regional, natio ...
is of great importance in the economy of Ceará, representing more than 70% of the state's GDP. The main commercial institution in the state is the Federation of Commerce of the State of Ceará (Fecommerce). Some commercial chains affiliated with Fecomercio with national prominence are Rede de Farmácias Pague Menos, Cone Pizza, Otoch and Esplanada. In 2009, construction began on the second state supply center (Ceasa), in the Cariri region, which will complement food distribution, together with Ceasa in the Metropolitan Region of Fortaleza. In addition to Ceasa's commercial activity, all cities maintain municipal
markets Market is a term used to describe concepts such as: *Market (economics), system in which parties engage in transactions according to supply and demand *Market economy *Marketplace, a physical marketplace or public market Geography *Märket, an ...
.


See also

* Trans-Amazonian Railway *
Madeira-Mamoré Railroad The Madeira-Mamoré Railroad is an abandoned railroad built in the Brazilian state of Rondônia between 1907 and 1912. The railroad links the cities of Porto Velho and Guajará-Mirim. It became known as the "Devil's Railroad" because thousands of ...


References

{{DEFAULTSORT:Trans-Amazonian Highway Federal highways in Brazil Amazon basin