Parnaíba River (redirected from Parnaíba (river))

Parnaíba River

River, northeastern Brazil. It rises in the Tabatinga Mountains and flows northeast for 1,056 mi (1,700 km) to empty into the Atlantic Ocean, forming a delta at its mouth. The river has great economic importance. It is navigable by shallow-draft vessels from its mouth at least as far south as the junction of the Canindé River. The port of Parnaíba, located near the river's mouth, is a commercial centre.