Paranaíba River in the context of "Rio Verde (upper Paranaíba River)"

A floodplain or flood plain or bottomlands is an area of land adjacent to a river. Floodplains stretch from the banks of a river channel to the base of the enclosing valley, and experience flooding during periods of high discharge. The soils usually consist of clays, silts, sands, and gravels deposited during floods.

Because of regular flooding, floodplains frequently have high soil fertility since nutrients are deposited with the flood waters. This can encourage farming; some important agricultural regions, such as the Nile and Mississippi river basins, heavily exploit floodplains. Agricultural and urban regions have developed near or on floodplains to take advantage of the rich soil and freshwater. However, the risk of inundation has led to increasing efforts to control flooding.

Minas Gerais (Brazilian Portuguese: [ˈminɐz ʒeˈɾajs] ; English: /ˈmɪnəs dʒəˈraɪs/ MIN-əs jə-RYS lit. 'General Mines') is one of the 27 federative units of Brazil, being the fourth largest state by area and the second largest in number of inhabitants with a population of 20,539,989 according to the 2022 census. Located in the Southeast Region of the country, it is bordered to south and southwest by São Paulo; Mato Grosso do Sul to the west; Goiás and the Federal District to the northwest; Bahia to the north and northeast; Espírito Santo to the east; and Rio de Janeiro to the southeast. The state's capital and largest city, Belo Horizonte, is a major urban and finance center in Brazil, being the sixth most populous municipality in the country while its metropolitan area ranks as the third largest in Brazil with just over 5.8 million inhabitants, after those of São Paulo and Rio de Janeiro. Minas Gerais' territory is subdivided into 853 municipalities, the largest number among Brazilian states.

The state's terrain is quite rugged and some of Brazil's highest peaks are located in its territory. It is also home to the source of some of Brazil's main rivers, such as the São Francisco, Grande, Paranaíba, Doce and Jequitinhonha rivers, which places it in a strategic position with regard to the country's water resources. It has a tropical climate, which varies from colder and humid in the south to semi-arid in its northern portion. All of these combined factors provide it with a rich fauna and flora distributed in the biomes that cover the state, especially the Cerrado and the threatened Atlantic Forest.

Rio Grande (Portuguese for "great river") is a river in south-central Brazil. It rises in the Mantiqueira Mountains in the state of Minas Gerais and descends inland, west-northwestward. Its lower course marks a portion of the Minas Gerais-São Paulo border. At the Mato Grosso do Sul state border, after a course of 1,090 km (677 mi), it joins the Paranaíba River to form the Upper Paraná River.