The Una River is a river of Bahia state in eastern Brazil. It discharges into the Atlantic Ocean after flowing past the town of Valença.Ladle, Jane. Brazil. Langenscheidt Publishing Group, 1999. 237. The mouth of the river, in the form of a delta, contains 26 islands, the largest of which is Tinharé, where the Morro de São Paulo is located.
See also List of rivers of Bahia
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