The Amazon River in South America is the largest river by discharge volume of water in the world, and the longest or second-longest river system in the world, a title which is disputed with the Nile.
Acre is a state located in the west of the North Region of Brazil and the Amazonia Legal. Located in the westernmost part of the country, at a two-hour time difference from Brasília, Acre is bordered clockwise by the Brazilian states of Amazonas and Rondônia to the north and east, along with an international border with the Bolivian department of Pando to the southeast, and the Peruvian regions of Madre de Dios, Ucayali and Loreto to the south and west. Its capital and largest city is Rio Branco. Other important places include Cruzeiro do Sul, Sena Madureira, Tarauacá and Feijó. The state, which has 0.42% of the Brazilian population, generates 0.2% of the Brazilian GDP.
Amazonas is a state of Brazil, located in the North Region in the north-western corner of the country. It is the largest Brazilian state by area and the ninth-largest country subdivision in the world. It is the largest country subdivision in South America, being greater than the areas of Chile, Paraguay, and Uruguay combined. Neighbouring states are Roraima, Pará, Mato Grosso, Rondônia, and Acre. It also borders the nations of Peru, Colombia and Venezuela. This includes the Departments of Amazonas, Vaupés and Guainía in Colombia, as well as the Amazonas state in Venezuela, and the Loreto Region in Peru.
Rondônia is one of the 26 states of Brazil, located in the northern subdivision of the country. It is bordered by Acre in the west, Amazonas in the north, Mato Grosso in the east, and Bolivia in the south. Rondônia has a population of 1,815,000 as of 2021. It is the fifth least populated state. Its capital and largest city is Porto Velho, bathed by the Madeira River. The state was named after Cândido Rondon, who explored the north of the country during the 1910s. The state, which is home to c. 0.7% of the Brazilian population, is responsible for c. 0.3% of the Brazilian GDP.
Porto Velho is the capital of the Brazilian state of Rondônia, in the upper Amazon River basin. The population is 548,952 people. Located on the border of Rondônia and the state of Amazonas, the town is an important trading center for cassiterite, the mining of which represents the most important economic activity in the region, as well as a transportation and communication center. It is on the eastern shore of the Madeira River, one of the main tributaries of the Amazon River. It is also Rondônia's largest city, and the largest state capital of Brazil by area.
The São Francisco River is a large river in Brazil. With a length of 2,914 kilometres (1,811 mi), it is the longest river that runs entirely in Brazilian territory, and the fourth longest in South America and overall in Brazil. It used to be known as the Opara by the indigenous people before colonisation, and is today also known as "Velho Chico".
An inland port is a port on an inland waterway, such as a river, lake, or canal, which may or may not be connected to the sea. The term "inland port" is also used to refer to a dry port.
Guaporé River is a river in western Brazil and northeastern Bolivia. It is 1,260 km (780 mi) long; 920 km (570 mi) of the river forms the border between Brazil and Bolivia.
Abunã is district in Porto Velho, the capital of Rondônia, Brazil. It is situated in the Amazon Basin on the right bank of the Madeira River 10 kilometres (6.2 mi) upstream from its confluence with the Abuna River. The Abuna River and the Madeira River upstream from their confluence mark the boundary between Brazil and Bolivia, and so Abunã is across the river from the Bolivia.
This is a timeline of Amazon history, which dates back at least 11,000 years ago, when humans left indications of their presence in Caverna da Pedra Pintada.
Caribbean Brazilians refers to Brazilians of full, partial, or predominantly Caribbean ancestry, or Caribbean-born people residing in Brazil. Many Caribbean Brazilians are of Barbadian descent.
The Jamari River is a river of Rondônia state in western Brazil.
The Journalist Phelippe Daou Bridge is the fourth longest bridge in Brazil at 3,595 metres (11,795 ft) long, with a cable-stayed bridge section of 400 metres (1,300 ft), over the Rio Negro that links the city of Manaus with the small town of Iranduba in the state of Amazonas in Brazil. It spans the Rio Negro just before its confluence with the Amazon River, and is the only major bridge across the Amazon or any tributary in the Amazon basin. Its construction was marked by controversy over the potential effects of roadbuilding in the Amazon basin, which could lead to deforestation. A 2018 study found that the construction of this bridge did induce deforestation.
The Jirau Dam is a rock-fill dam with an asphalt-concrete core, in the Madeira River in the state of Rondônia, Brazil. The dam's hydroelectric power stations have 50 turbines each 75 MW resulting total installed capacity of 3,750 MW. The power plant's first unit was commissioned in September 2013, the 16th in November 2014, 24th in February 2015, the 41st in December 2015, and the last in December 2016. Most of the power is designed to be exported to south-eastern Brazil via the Rio Madeira HVDC system.
The Santo Antônio Dam is a hydroelectric dam on the Madeira River 6 km (4 mi) southwest of Porto Velho in the state of Rondônia, Brazil. The dam's run-of-the-river hydroelectric power station has 50 turbines, each rated at 71.6 MW resulting in a total installed capacity of 3,580 MW. The first unit began commercial production in March 2012, and as of June 2015 a total of 32 units were operational. The last 6 units went online in December 2016. Most of the power will be exported to south-eastern Brazil via the Rio Madeira HVDC system.
The Madeira-Mamoré Railroad is an abandoned railroad built in the Brazilian state of Rondônia between 1907 and 1912, during the rubber boom. The railroad links the cities of Porto Velho and Guajará-Mirim. It became known as the "Devil's Railroad" because thousands of construction workers died from tropical diseases and violence.
The Samuel Hydroelectric Dam is a 216 MW hydroelectric dam near Porto Velho, Rondônia, Brazil. The project was controversial since it had a major environmental impact and during operations released more greenhouse gases than a comparable oil-fuelled plant.
Mapinguari National Park is a national park in the states of Rondônia and Amazonas, Brazil. It covers a large area of Amazon rainforest. The boundaries have been adjusted several times.
BR-319 is an 870-kilometre (540 mi) federal highway that links Manaus, Amazonas to Porto Velho, Rondônia. The highway runs through a pristine part of the Amazon rainforest. It was opened by the military government in 1973 but soon deteriorated, and by 1988 was impassable. In 2008 work began to repair the highway, which will provide an alternative to boat travel along the Madeira River or flying between Manaus and Porto Velho. Protected areas have been created along the route in an effort to prevent deforestation when BR-319 is reopened, a serious concern given the devastation caused elsewhere by highways such as BR-364. As of mid-2016 paving of the middle section of the highway had yet to be approved. Construction permits will depend on measures to prevent future damage to the forest.
