description São Francisco River Delta Overview
The São Francisco River Delta is the river's coastal outlet on Brazil's northeastern Atlantic coast, near the boundary between the states of Sergipe and Alagoas. The lower river divides into channels and meets the sea among sand dunes, beaches, wetlands, and estuarine habitats. It is studied as a deltaic and coastal environment shaped by river flow, sediment, tides, and human changes to the São Francisco basin.
help São Francisco River Delta FAQ
Where is the São Francisco River Delta?
The delta is on Brazil's northeastern coast where the São Francisco reaches the Atlantic Ocean. The river mouth lies between the states of Alagoas and Sergipe.
How does the São Francisco support farming in a semi-arid region?
The river carries dependable water through parts of northeastern Brazil that experience drought and high evaporation. Irrigation around the lower and middle São Francisco helps sustain productive agricultural areas.
How long is the São Francisco River?
The river is commonly described as about 2,700 kilometers long. It crosses Brazil from Minas Gerais to the Atlantic and is the longest major river contained entirely within the country.
How large is the São Francisco River basin?
Brazil's water agency describes the basin as covering 521 municipalities in six states plus the Federal District. That scale explains why the river matters for water supply, energy, transport, and agriculture.
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